./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:02:04,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:02:04,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:02:04,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:02:04,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:02:04,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:02:04,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:02:04,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:02:04,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:02:04,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:02:04,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:02:04,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:02:04,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:02:04,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:02:04,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:02:04,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:02:04,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:02:04,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:02:04,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:02:04,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:02:04,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:02:04,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:02:04,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:02:04,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:02:04,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:02:04,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:02:04,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:02:04,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:02:04,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:02:04,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:02:04,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:02:04,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:02:04,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:02:04,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:02:04,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:02:04,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:02:04,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:02:04,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:02:04,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:02:04,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:02:04,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:02:04,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-21 19:02:04,453 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:02:04,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:02:04,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:02:04,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:02:04,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:02:04,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:02:04,456 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:02:04,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:02:04,457 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:02:04,457 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:02:04,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:02:04,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:02:04,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:02:04,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:02:04,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:02:04,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:02:04,459 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-21 19:02:04,459 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:02:04,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:02:04,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:02:04,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:02:04,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:02:04,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:02:04,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:02:04,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:02:04,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:02:04,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:02:04,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:02:04,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:02:04,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:02:04,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:02:04,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:02:04,463 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 [2021-10-21 19:02:04,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:02:04,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:02:04,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:02:04,760 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:02:04,761 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:02:04,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-10-21 19:02:04,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/data/b9d50aed0/50a69e606c734b2c8260580ee0f7c31d/FLAGdd6a0ea05 [2021-10-21 19:02:05,372 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:02:05,373 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-10-21 19:02:05,394 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/data/b9d50aed0/50a69e606c734b2c8260580ee0f7c31d/FLAGdd6a0ea05 [2021-10-21 19:02:05,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/data/b9d50aed0/50a69e606c734b2c8260580ee0f7c31d [2021-10-21 19:02:05,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:02:05,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:02:05,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:02:05,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:02:05,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:02:05,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:02:05" (1/1) ... [2021-10-21 19:02:05,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba9b30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:05, skipping insertion in model container [2021-10-21 19:02:05,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:02:05" (1/1) ... [2021-10-21 19:02:05,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:02:05,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:02:05,958 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-10-21 19:02:05,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:02:05,987 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:02:06,002 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-10-21 19:02:06,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:02:06,019 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:02:06,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06 WrapperNode [2021-10-21 19:02:06,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:02:06,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:02:06,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:02:06,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:02:06,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (1/1) ... [2021-10-21 19:02:06,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (1/1) ... [2021-10-21 19:02:06,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:02:06,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:02:06,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:02:06,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:02:06,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (1/1) ... [2021-10-21 19:02:06,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (1/1) ... [2021-10-21 19:02:06,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (1/1) ... [2021-10-21 19:02:06,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (1/1) ... [2021-10-21 19:02:06,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (1/1) ... [2021-10-21 19:02:06,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (1/1) ... [2021-10-21 19:02:06,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (1/1) ... [2021-10-21 19:02:06,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:02:06,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:02:06,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:02:06,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:02:06,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (1/1) ... [2021-10-21 19:02:06,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:02:06,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:06,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:02:06,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:02:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:02:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:02:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:02:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:02:06,381 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:02:06,381 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:02:06,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:02:06 BoogieIcfgContainer [2021-10-21 19:02:06,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:02:06,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:02:06,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:02:06,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:02:06,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:02:05" (1/3) ... [2021-10-21 19:02:06,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647492e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:02:06, skipping insertion in model container [2021-10-21 19:02:06,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:02:06" (2/3) ... [2021-10-21 19:02:06,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@647492e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:02:06, skipping insertion in model container [2021-10-21 19:02:06,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:02:06" (3/3) ... [2021-10-21 19:02:06,392 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2021-10-21 19:02:06,398 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:02:06,398 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-21 19:02:06,509 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:02:06,519 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:02:06,537 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-21 19:02:06,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:06,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 19:02:06,558 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:06,558 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 19:02:06,559 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:06,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:06,569 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-10-21 19:02:06,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:06,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490544265] [2021-10-21 19:02:06,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:06,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:06,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:06,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:06,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490544265] [2021-10-21 19:02:06,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490544265] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:02:06,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:02:06,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:02:06,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987375780] [2021-10-21 19:02:06,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:02:06,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:06,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:02:06,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:02:06,842 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:06,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:06,910 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2021-10-21 19:02:06,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:02:06,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-21 19:02:06,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:06,921 INFO L225 Difference]: With dead ends: 34 [2021-10-21 19:02:06,922 INFO L226 Difference]: Without dead ends: 15 [2021-10-21 19:02:06,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:02:06,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-21 19:02:06,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-10-21 19:02:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:06,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-10-21 19:02:06,960 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-10-21 19:02:06,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:06,962 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-10-21 19:02:06,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:06,963 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-10-21 19:02:06,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-21 19:02:06,964 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:06,964 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:02:06,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:02:06,965 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:06,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:06,969 INFO L82 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-10-21 19:02:06,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:06,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045449761] [2021-10-21 19:02:06,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:06,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:07,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:07,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:07,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045449761] [2021-10-21 19:02:07,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045449761] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:02:07,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:02:07,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:02:07,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526784328] [2021-10-21 19:02:07,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:02:07,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:07,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:02:07,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:02:07,050 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:07,065 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-10-21 19:02:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:02:07,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-21 19:02:07,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:07,067 INFO L225 Difference]: With dead ends: 14 [2021-10-21 19:02:07,068 INFO L226 Difference]: Without dead ends: 13 [2021-10-21 19:02:07,069 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:02:07,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-21 19:02:07,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-21 19:02:07,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-21 19:02:07,075 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2021-10-21 19:02:07,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:07,075 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-21 19:02:07,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,076 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-21 19:02:07,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 19:02:07,077 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:07,077 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:02:07,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:02:07,077 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:07,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:07,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2021-10-21 19:02:07,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:07,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578268273] [2021-10-21 19:02:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:07,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:07,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:07,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578268273] [2021-10-21 19:02:07,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578268273] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:02:07,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:02:07,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:02:07,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190084993] [2021-10-21 19:02:07,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:02:07,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:07,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:02:07,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:02:07,126 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:07,161 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-21 19:02:07,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:02:07,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-21 19:02:07,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:07,164 INFO L225 Difference]: With dead ends: 18 [2021-10-21 19:02:07,164 INFO L226 Difference]: Without dead ends: 16 [2021-10-21 19:02:07,165 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:02:07,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-21 19:02:07,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-21 19:02:07,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-21 19:02:07,175 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-10-21 19:02:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:07,176 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-21 19:02:07,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,177 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-21 19:02:07,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 19:02:07,178 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:07,178 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:02:07,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:02:07,179 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:07,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:07,180 INFO L82 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2021-10-21 19:02:07,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:07,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288456243] [2021-10-21 19:02:07,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:07,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:07,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:07,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:07,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288456243] [2021-10-21 19:02:07,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288456243] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:07,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356915143] [2021-10-21 19:02:07,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:07,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:07,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:07,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:07,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:02:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:07,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:02:07,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:07,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:07,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356915143] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:07,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:07,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-21 19:02:07,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572459780] [2021-10-21 19:02:07,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:02:07,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:07,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:02:07,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:02:07,424 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:07,438 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-10-21 19:02:07,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:02:07,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-21 19:02:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:07,440 INFO L225 Difference]: With dead ends: 20 [2021-10-21 19:02:07,440 INFO L226 Difference]: Without dead ends: 19 [2021-10-21 19:02:07,441 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:02:07,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-21 19:02:07,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-10-21 19:02:07,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-21 19:02:07,445 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 10 [2021-10-21 19:02:07,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:07,445 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-10-21 19:02:07,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-21 19:02:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:02:07,446 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:07,446 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-21 19:02:07,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:07,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:07,673 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:07,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:07,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1588880781, now seen corresponding path program 1 times [2021-10-21 19:02:07,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:07,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175654005] [2021-10-21 19:02:07,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:07,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:07,712 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:02:07,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:07,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175654005] [2021-10-21 19:02:07,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175654005] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:02:07,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:02:07,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:02:07,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675761866] [2021-10-21 19:02:07,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:02:07,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:07,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:02:07,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:02:07,716 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:07,735 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-21 19:02:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:02:07,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-21 19:02:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:07,737 INFO L225 Difference]: With dead ends: 18 [2021-10-21 19:02:07,737 INFO L226 Difference]: Without dead ends: 17 [2021-10-21 19:02:07,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:02:07,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-21 19:02:07,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-21 19:02:07,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-21 19:02:07,741 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 12 [2021-10-21 19:02:07,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:07,742 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-21 19:02:07,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-21 19:02:07,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-21 19:02:07,743 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:07,743 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-21 19:02:07,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:02:07,744 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:07,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:07,744 INFO L82 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2021-10-21 19:02:07,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:07,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742342703] [2021-10-21 19:02:07,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:07,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:07,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:07,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742342703] [2021-10-21 19:02:07,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742342703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:07,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718269819] [2021-10-21 19:02:07,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:07,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:07,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:07,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:07,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:02:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:07,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:02:07,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:07,991 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:07,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718269819] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:02:07,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:02:07,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-10-21 19:02:07,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588648975] [2021-10-21 19:02:07,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:02:07,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:07,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:02:07,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:02:07,994 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:08,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:08,028 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-10-21 19:02:08,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:02:08,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-21 19:02:08,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:08,029 INFO L225 Difference]: With dead ends: 17 [2021-10-21 19:02:08,029 INFO L226 Difference]: Without dead ends: 16 [2021-10-21 19:02:08,030 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 44.0ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:02:08,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-21 19:02:08,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-21 19:02:08,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:08,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-21 19:02:08,033 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2021-10-21 19:02:08,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:08,033 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-21 19:02:08,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:08,034 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-21 19:02:08,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-21 19:02:08,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:08,034 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-21 19:02:08,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:08,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-21 19:02:08,262 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:08,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:08,262 INFO L82 PathProgramCache]: Analyzing trace with hash 487275813, now seen corresponding path program 2 times [2021-10-21 19:02:08,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:08,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975920862] [2021-10-21 19:02:08,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:08,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:08,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:08,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975920862] [2021-10-21 19:02:08,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975920862] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:08,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571728797] [2021-10-21 19:02:08,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:02:08,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:08,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:08,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:08,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:02:08,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:02:08,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:08,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:02:08,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:08,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571728797] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:08,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:08,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 19:02:08,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636810303] [2021-10-21 19:02:08,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:02:08,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:08,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:02:08,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:02:08,506 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:08,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:08,535 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-10-21 19:02:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:02:08,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-21 19:02:08,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:08,537 INFO L225 Difference]: With dead ends: 23 [2021-10-21 19:02:08,537 INFO L226 Difference]: Without dead ends: 22 [2021-10-21 19:02:08,538 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:02:08,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-21 19:02:08,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-10-21 19:02:08,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:08,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-10-21 19:02:08,554 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2021-10-21 19:02:08,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:08,554 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-10-21 19:02:08,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:08,554 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-10-21 19:02:08,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:02:08,555 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:08,555 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1] [2021-10-21 19:02:08,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:08,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:08,756 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:08,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:08,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1418773263, now seen corresponding path program 3 times [2021-10-21 19:02:08,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:08,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334327165] [2021-10-21 19:02:08,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:08,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:08,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:08,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334327165] [2021-10-21 19:02:08,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334327165] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:08,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472350221] [2021-10-21 19:02:08,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:02:08,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:08,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:08,808 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:08,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:02:08,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-21 19:02:08,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:08,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:02:08,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:08,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472350221] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:08,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:08,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-21 19:02:08,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820405315] [2021-10-21 19:02:09,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:02:09,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:09,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:02:09,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:02:09,002 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:09,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:09,045 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-10-21 19:02:09,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:02:09,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-21 19:02:09,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:09,051 INFO L225 Difference]: With dead ends: 28 [2021-10-21 19:02:09,054 INFO L226 Difference]: Without dead ends: 27 [2021-10-21 19:02:09,055 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:02:09,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-21 19:02:09,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-10-21 19:02:09,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:09,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-10-21 19:02:09,069 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 20 [2021-10-21 19:02:09,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:09,070 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-10-21 19:02:09,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:09,071 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-10-21 19:02:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:02:09,074 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:09,074 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1] [2021-10-21 19:02:09,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:09,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:09,293 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:09,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:09,294 INFO L82 PathProgramCache]: Analyzing trace with hash 584006821, now seen corresponding path program 4 times [2021-10-21 19:02:09,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:09,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109534094] [2021-10-21 19:02:09,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:09,295 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:09,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:09,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109534094] [2021-10-21 19:02:09,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109534094] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:09,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922155655] [2021-10-21 19:02:09,378 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:02:09,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:09,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:09,380 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:09,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:02:09,458 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:02:09,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:09,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:02:09,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:09,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922155655] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:09,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:09,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-21 19:02:09,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521567008] [2021-10-21 19:02:09,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:02:09,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:09,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:02:09,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:02:09,610 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:09,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:09,631 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-10-21 19:02:09,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:02:09,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-21 19:02:09,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:09,633 INFO L225 Difference]: With dead ends: 33 [2021-10-21 19:02:09,633 INFO L226 Difference]: Without dead ends: 32 [2021-10-21 19:02:09,633 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.7ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:02:09,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-21 19:02:09,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-10-21 19:02:09,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:09,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-21 19:02:09,638 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 25 [2021-10-21 19:02:09,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:09,638 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-21 19:02:09,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:09,638 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-21 19:02:09,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-21 19:02:09,639 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:09,639 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1] [2021-10-21 19:02:09,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-10-21 19:02:09,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:09,865 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:09,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:09,866 INFO L82 PathProgramCache]: Analyzing trace with hash -977343119, now seen corresponding path program 5 times [2021-10-21 19:02:09,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:09,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026727240] [2021-10-21 19:02:09,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:09,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:09,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:09,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026727240] [2021-10-21 19:02:09,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026727240] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:09,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229783178] [2021-10-21 19:02:09,975 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:02:09,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:09,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:09,981 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:09,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 19:02:10,069 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-21 19:02:10,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:10,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:02:10,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:10,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229783178] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:10,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:10,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-21 19:02:10,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811436859] [2021-10-21 19:02:10,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:02:10,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:10,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:02:10,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:02:10,242 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:10,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:10,296 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2021-10-21 19:02:10,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:02:10,297 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-10-21 19:02:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:10,301 INFO L225 Difference]: With dead ends: 38 [2021-10-21 19:02:10,302 INFO L226 Difference]: Without dead ends: 37 [2021-10-21 19:02:10,303 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.0ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:02:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-21 19:02:10,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-10-21 19:02:10,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-10-21 19:02:10,314 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 30 [2021-10-21 19:02:10,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:10,319 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-10-21 19:02:10,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:10,320 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-10-21 19:02:10,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-21 19:02:10,321 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:10,321 INFO L512 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1] [2021-10-21 19:02:10,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:10,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-21 19:02:10,535 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:10,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:10,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1362746405, now seen corresponding path program 6 times [2021-10-21 19:02:10,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:10,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067900529] [2021-10-21 19:02:10,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:10,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:10,619 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:10,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:10,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067900529] [2021-10-21 19:02:10,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067900529] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:10,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450577023] [2021-10-21 19:02:10,620 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:02:10,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:10,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:10,621 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:10,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:02:10,708 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-21 19:02:10,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:10,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:02:10,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:10,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450577023] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:10,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:10,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-10-21 19:02:10,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17479946] [2021-10-21 19:02:10,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:02:10,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:02:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:02:10,837 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:10,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:10,879 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2021-10-21 19:02:10,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:02:10,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-21 19:02:10,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:10,883 INFO L225 Difference]: With dead ends: 43 [2021-10-21 19:02:10,884 INFO L226 Difference]: Without dead ends: 42 [2021-10-21 19:02:10,884 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.2ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:02:10,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-21 19:02:10,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2021-10-21 19:02:10,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2021-10-21 19:02:10,896 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 35 [2021-10-21 19:02:10,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:10,897 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2021-10-21 19:02:10,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2021-10-21 19:02:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-21 19:02:10,899 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:10,899 INFO L512 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1] [2021-10-21 19:02:10,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:11,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:11,100 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:11,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:11,101 INFO L82 PathProgramCache]: Analyzing trace with hash 915144177, now seen corresponding path program 7 times [2021-10-21 19:02:11,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:11,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741541107] [2021-10-21 19:02:11,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:11,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:11,234 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:11,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:11,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741541107] [2021-10-21 19:02:11,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741541107] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:11,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985658165] [2021-10-21 19:02:11,235 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:02:11,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:11,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:11,241 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:11,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:02:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:11,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:02:11,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:11,457 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:11,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985658165] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:11,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:11,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-21 19:02:11,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982402045] [2021-10-21 19:02:11,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:02:11,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:11,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:02:11,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:02:11,461 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:11,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:11,493 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2021-10-21 19:02:11,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:02:11,494 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-21 19:02:11,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:11,496 INFO L225 Difference]: With dead ends: 48 [2021-10-21 19:02:11,496 INFO L226 Difference]: Without dead ends: 47 [2021-10-21 19:02:11,497 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.1ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:02:11,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-21 19:02:11,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2021-10-21 19:02:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-10-21 19:02:11,516 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 40 [2021-10-21 19:02:11,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:11,518 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-10-21 19:02:11,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:11,518 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-10-21 19:02:11,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-21 19:02:11,523 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:11,523 INFO L512 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 1, 1, 1, 1] [2021-10-21 19:02:11,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:11,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:11,733 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:11,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:11,734 INFO L82 PathProgramCache]: Analyzing trace with hash -2138891355, now seen corresponding path program 8 times [2021-10-21 19:02:11,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:11,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538170431] [2021-10-21 19:02:11,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:11,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:11,829 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:11,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:11,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538170431] [2021-10-21 19:02:11,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538170431] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:11,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747713618] [2021-10-21 19:02:11,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:02:11,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:11,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:11,840 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:11,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 19:02:11,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:02:11,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:11,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 19:02:11,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:12,113 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:12,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747713618] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:12,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:12,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-21 19:02:12,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107213674] [2021-10-21 19:02:12,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 19:02:12,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:12,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 19:02:12,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:02:12,116 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:12,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:12,153 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2021-10-21 19:02:12,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:02:12,154 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-21 19:02:12,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:12,157 INFO L225 Difference]: With dead ends: 53 [2021-10-21 19:02:12,157 INFO L226 Difference]: Without dead ends: 52 [2021-10-21 19:02:12,158 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.1ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:02:12,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-21 19:02:12,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2021-10-21 19:02:12,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2021-10-21 19:02:12,166 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 45 [2021-10-21 19:02:12,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:12,167 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2021-10-21 19:02:12,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:12,167 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2021-10-21 19:02:12,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-21 19:02:12,168 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:12,168 INFO L512 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 1, 1, 1, 1] [2021-10-21 19:02:12,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:12,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:12,391 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:12,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:12,392 INFO L82 PathProgramCache]: Analyzing trace with hash -2002882959, now seen corresponding path program 9 times [2021-10-21 19:02:12,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:12,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303171200] [2021-10-21 19:02:12,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:12,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:12,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:12,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303171200] [2021-10-21 19:02:12,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303171200] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:12,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027797781] [2021-10-21 19:02:12,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:02:12,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:12,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:12,513 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:12,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 19:02:12,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-21 19:02:12,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:12,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:02:12,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:12,818 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:12,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027797781] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:12,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:12,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-10-21 19:02:12,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831944165] [2021-10-21 19:02:12,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:02:12,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:12,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:02:12,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:02:12,823 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:12,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:12,863 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-10-21 19:02:12,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:02:12,863 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-10-21 19:02:12,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:12,864 INFO L225 Difference]: With dead ends: 58 [2021-10-21 19:02:12,864 INFO L226 Difference]: Without dead ends: 57 [2021-10-21 19:02:12,865 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.0ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:02:12,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-21 19:02:12,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-10-21 19:02:12,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:12,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-10-21 19:02:12,869 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 50 [2021-10-21 19:02:12,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:12,869 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-10-21 19:02:12,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:12,870 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-10-21 19:02:12,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-21 19:02:12,871 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:12,871 INFO L512 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1] [2021-10-21 19:02:12,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:13,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:13,086 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:13,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:13,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1562182875, now seen corresponding path program 10 times [2021-10-21 19:02:13,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:13,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968993455] [2021-10-21 19:02:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:13,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:13,202 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:13,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:13,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968993455] [2021-10-21 19:02:13,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968993455] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:13,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399990751] [2021-10-21 19:02:13,204 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:02:13,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:13,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:13,205 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:13,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-21 19:02:13,341 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:02:13,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:13,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 19:02:13,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:13,537 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:13,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399990751] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:13,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:13,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-10-21 19:02:13,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119007529] [2021-10-21 19:02:13,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-21 19:02:13,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:13,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 19:02:13,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:02:13,540 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:13,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:13,585 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2021-10-21 19:02:13,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:02:13,586 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-21 19:02:13,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:13,587 INFO L225 Difference]: With dead ends: 63 [2021-10-21 19:02:13,588 INFO L226 Difference]: Without dead ends: 62 [2021-10-21 19:02:13,590 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.4ms TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:02:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-21 19:02:13,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2021-10-21 19:02:13,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 60 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2021-10-21 19:02:13,598 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 55 [2021-10-21 19:02:13,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:13,599 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2021-10-21 19:02:13,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2021-10-21 19:02:13,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-21 19:02:13,606 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:13,606 INFO L512 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 1, 1, 1, 1] [2021-10-21 19:02:13,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:13,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-21 19:02:13,821 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:13,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:13,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1824407281, now seen corresponding path program 11 times [2021-10-21 19:02:13,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:13,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915935846] [2021-10-21 19:02:13,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:13,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:13,963 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:13,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:13,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915935846] [2021-10-21 19:02:13,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915935846] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:13,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309558831] [2021-10-21 19:02:13,965 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:02:13,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:13,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:13,969 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:13,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 19:02:14,140 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-10-21 19:02:14,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:14,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 19:02:14,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:14,323 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:14,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309558831] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:14,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:14,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-10-21 19:02:14,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950933236] [2021-10-21 19:02:14,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:02:14,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:14,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:02:14,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:02:14,325 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:14,361 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2021-10-21 19:02:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:02:14,361 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-21 19:02:14,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:14,362 INFO L225 Difference]: With dead ends: 68 [2021-10-21 19:02:14,362 INFO L226 Difference]: Without dead ends: 67 [2021-10-21 19:02:14,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.6ms TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:02:14,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-10-21 19:02:14,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2021-10-21 19:02:14,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2021-10-21 19:02:14,378 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 60 [2021-10-21 19:02:14,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:14,378 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2021-10-21 19:02:14,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:14,379 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2021-10-21 19:02:14,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-21 19:02:14,381 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:14,381 INFO L512 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1] [2021-10-21 19:02:14,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:14,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-21 19:02:14,597 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:14,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:14,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1150384805, now seen corresponding path program 12 times [2021-10-21 19:02:14,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:14,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433747102] [2021-10-21 19:02:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:14,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:14,744 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:14,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:14,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433747102] [2021-10-21 19:02:14,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433747102] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:14,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018107396] [2021-10-21 19:02:14,745 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:02:14,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:14,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:14,749 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:14,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-21 19:02:14,942 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-10-21 19:02:14,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:14,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:02:14,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:15,176 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:15,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018107396] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:15,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:15,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-10-21 19:02:15,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60732528] [2021-10-21 19:02:15,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-21 19:02:15,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:15,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-21 19:02:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:02:15,180 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:15,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:15,234 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2021-10-21 19:02:15,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-21 19:02:15,235 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-10-21 19:02:15,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:15,236 INFO L225 Difference]: With dead ends: 73 [2021-10-21 19:02:15,236 INFO L226 Difference]: Without dead ends: 72 [2021-10-21 19:02:15,237 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 85.7ms TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:02:15,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-21 19:02:15,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2021-10-21 19:02:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2021-10-21 19:02:15,241 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 65 [2021-10-21 19:02:15,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:15,241 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2021-10-21 19:02:15,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2021-10-21 19:02:15,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-21 19:02:15,243 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:15,244 INFO L512 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1] [2021-10-21 19:02:15,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:15,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-21 19:02:15,469 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:15,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:15,470 INFO L82 PathProgramCache]: Analyzing trace with hash 968060785, now seen corresponding path program 13 times [2021-10-21 19:02:15,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:15,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566482746] [2021-10-21 19:02:15,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:15,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:15,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:15,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566482746] [2021-10-21 19:02:15,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566482746] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:15,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399341147] [2021-10-21 19:02:15,631 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:02:15,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:15,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:15,632 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:15,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-21 19:02:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:15,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 19:02:15,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:16,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399341147] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:16,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:16,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-10-21 19:02:16,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304044330] [2021-10-21 19:02:16,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-21 19:02:16,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-21 19:02:16,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-21 19:02:16,061 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:16,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:16,103 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2021-10-21 19:02:16,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-21 19:02:16,103 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-10-21 19:02:16,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:16,104 INFO L225 Difference]: With dead ends: 78 [2021-10-21 19:02:16,104 INFO L226 Difference]: Without dead ends: 77 [2021-10-21 19:02:16,105 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 97.8ms TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-21 19:02:16,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-21 19:02:16,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2021-10-21 19:02:16,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.0133333333333334) internal successors, (76), 75 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:16,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2021-10-21 19:02:16,109 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 70 [2021-10-21 19:02:16,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:16,109 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2021-10-21 19:02:16,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:16,110 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2021-10-21 19:02:16,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-21 19:02:16,110 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:16,110 INFO L512 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1] [2021-10-21 19:02:16,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:16,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-21 19:02:16,325 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:16,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:16,326 INFO L82 PathProgramCache]: Analyzing trace with hash 197564965, now seen corresponding path program 14 times [2021-10-21 19:02:16,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:16,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104342037] [2021-10-21 19:02:16,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:16,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:16,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:16,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104342037] [2021-10-21 19:02:16,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104342037] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:16,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684773755] [2021-10-21 19:02:16,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:02:16,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:16,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:16,509 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:16,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-21 19:02:16,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:02:16,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:16,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 19:02:16,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:16,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684773755] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:16,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:16,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-10-21 19:02:16,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600815961] [2021-10-21 19:02:16,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-21 19:02:16,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:16,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-21 19:02:16,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-21 19:02:16,970 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:17,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:17,014 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2021-10-21 19:02:17,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-21 19:02:17,014 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-10-21 19:02:17,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:17,015 INFO L225 Difference]: With dead ends: 83 [2021-10-21 19:02:17,015 INFO L226 Difference]: Without dead ends: 82 [2021-10-21 19:02:17,016 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 104.9ms TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-21 19:02:17,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-21 19:02:17,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2021-10-21 19:02:17,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2021-10-21 19:02:17,020 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 75 [2021-10-21 19:02:17,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:17,021 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2021-10-21 19:02:17,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:17,021 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2021-10-21 19:02:17,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-21 19:02:17,022 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:17,022 INFO L512 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1, 1] [2021-10-21 19:02:17,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:17,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:17,237 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:17,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:17,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1816526833, now seen corresponding path program 15 times [2021-10-21 19:02:17,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:17,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582835500] [2021-10-21 19:02:17,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:17,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:17,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:17,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582835500] [2021-10-21 19:02:17,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582835500] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:17,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009918674] [2021-10-21 19:02:17,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:02:17,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:17,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:17,435 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:17,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-21 19:02:17,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-10-21 19:02:17,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:17,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 19:02:17,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:17,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009918674] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:17,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:17,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-10-21 19:02:17,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133049331] [2021-10-21 19:02:17,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-21 19:02:17,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:17,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 19:02:17,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-21 19:02:17,923 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:17,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:17,967 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2021-10-21 19:02:17,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 19:02:17,967 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-10-21 19:02:17,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:17,968 INFO L225 Difference]: With dead ends: 88 [2021-10-21 19:02:17,969 INFO L226 Difference]: Without dead ends: 87 [2021-10-21 19:02:17,969 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 120.8ms TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-21 19:02:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-21 19:02:17,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2021-10-21 19:02:17,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:17,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2021-10-21 19:02:17,973 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 80 [2021-10-21 19:02:17,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:17,974 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2021-10-21 19:02:17,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:17,974 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2021-10-21 19:02:17,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-21 19:02:17,975 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:17,975 INFO L512 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 1, 1, 1, 1] [2021-10-21 19:02:18,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:18,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:18,188 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:18,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:18,189 INFO L82 PathProgramCache]: Analyzing trace with hash 951736741, now seen corresponding path program 16 times [2021-10-21 19:02:18,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:18,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005327173] [2021-10-21 19:02:18,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:18,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:18,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:18,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005327173] [2021-10-21 19:02:18,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005327173] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:18,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676542708] [2021-10-21 19:02:18,386 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:02:18,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:18,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:18,388 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:18,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-21 19:02:18,640 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:02:18,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:18,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 19:02:18,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:18,861 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:18,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676542708] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:18,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:18,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-10-21 19:02:18,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262776172] [2021-10-21 19:02:18,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-21 19:02:18,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:18,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-21 19:02:18,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-21 19:02:18,866 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:18,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:18,915 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2021-10-21 19:02:18,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-21 19:02:18,916 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-10-21 19:02:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:18,916 INFO L225 Difference]: With dead ends: 93 [2021-10-21 19:02:18,917 INFO L226 Difference]: Without dead ends: 92 [2021-10-21 19:02:18,917 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-21 19:02:18,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-21 19:02:18,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2021-10-21 19:02:18,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.011111111111111) internal successors, (91), 90 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2021-10-21 19:02:18,921 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 85 [2021-10-21 19:02:18,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:18,922 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2021-10-21 19:02:18,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2021-10-21 19:02:18,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-21 19:02:18,923 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:18,923 INFO L512 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 1, 1, 1, 1] [2021-10-21 19:02:18,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:19,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:19,137 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:19,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:19,138 INFO L82 PathProgramCache]: Analyzing trace with hash 658370673, now seen corresponding path program 17 times [2021-10-21 19:02:19,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:19,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083248497] [2021-10-21 19:02:19,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:19,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:19,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:19,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083248497] [2021-10-21 19:02:19,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083248497] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:19,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763648003] [2021-10-21 19:02:19,377 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:02:19,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:19,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:19,379 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:19,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-21 19:02:19,691 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-10-21 19:02:19,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:19,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-21 19:02:19,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:19,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763648003] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:19,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:19,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-10-21 19:02:19,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850886410] [2021-10-21 19:02:19,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-21 19:02:19,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:19,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-21 19:02:19,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-21 19:02:19,944 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:20,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:20,001 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2021-10-21 19:02:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-21 19:02:20,002 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-10-21 19:02:20,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:20,003 INFO L225 Difference]: With dead ends: 98 [2021-10-21 19:02:20,003 INFO L226 Difference]: Without dead ends: 97 [2021-10-21 19:02:20,005 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 147.6ms TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-21 19:02:20,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-21 19:02:20,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2021-10-21 19:02:20,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2021-10-21 19:02:20,009 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 90 [2021-10-21 19:02:20,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:20,010 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2021-10-21 19:02:20,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:20,010 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2021-10-21 19:02:20,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-10-21 19:02:20,011 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:20,011 INFO L512 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 1, 1, 1, 1] [2021-10-21 19:02:20,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:20,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-10-21 19:02:20,237 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:20,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:20,238 INFO L82 PathProgramCache]: Analyzing trace with hash 631552293, now seen corresponding path program 18 times [2021-10-21 19:02:20,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:20,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426543458] [2021-10-21 19:02:20,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:20,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:20,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:20,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426543458] [2021-10-21 19:02:20,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426543458] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:20,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171275103] [2021-10-21 19:02:20,471 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:02:20,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:20,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:20,472 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:20,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-21 19:02:20,868 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-10-21 19:02:20,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:20,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-21 19:02:20,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:21,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171275103] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:21,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:21,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-10-21 19:02:21,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213890088] [2021-10-21 19:02:21,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-21 19:02:21,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:21,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-21 19:02:21,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-21 19:02:21,182 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:21,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:21,237 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2021-10-21 19:02:21,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-21 19:02:21,237 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-10-21 19:02:21,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:21,238 INFO L225 Difference]: With dead ends: 103 [2021-10-21 19:02:21,239 INFO L226 Difference]: Without dead ends: 102 [2021-10-21 19:02:21,239 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 163.0ms TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-21 19:02:21,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-21 19:02:21,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2021-10-21 19:02:21,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.01) internal successors, (101), 100 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:21,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2021-10-21 19:02:21,244 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 95 [2021-10-21 19:02:21,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:21,245 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2021-10-21 19:02:21,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:21,245 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2021-10-21 19:02:21,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-10-21 19:02:21,246 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:21,246 INFO L512 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 1, 1, 1, 1] [2021-10-21 19:02:21,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:21,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:21,447 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:21,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:21,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1285340943, now seen corresponding path program 19 times [2021-10-21 19:02:21,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:21,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480647274] [2021-10-21 19:02:21,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:21,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:21,745 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:21,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:21,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480647274] [2021-10-21 19:02:21,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480647274] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:21,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480893310] [2021-10-21 19:02:21,746 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:02:21,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:21,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:21,749 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:21,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-21 19:02:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:22,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-21 19:02:22,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:22,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480893310] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:22,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:22,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-10-21 19:02:22,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921975687] [2021-10-21 19:02:22,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-21 19:02:22,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:22,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-21 19:02:22,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-21 19:02:22,529 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:22,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:22,594 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2021-10-21 19:02:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-21 19:02:22,594 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-10-21 19:02:22,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:22,595 INFO L225 Difference]: With dead ends: 108 [2021-10-21 19:02:22,595 INFO L226 Difference]: Without dead ends: 107 [2021-10-21 19:02:22,596 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 206.1ms TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-21 19:02:22,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-21 19:02:22,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2021-10-21 19:02:22,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.0095238095238095) internal successors, (106), 105 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:22,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2021-10-21 19:02:22,600 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 100 [2021-10-21 19:02:22,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:22,601 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2021-10-21 19:02:22,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:22,601 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2021-10-21 19:02:22,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-21 19:02:22,602 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:22,603 INFO L512 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 1, 1, 1, 1] [2021-10-21 19:02:22,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:22,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-21 19:02:22,817 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:22,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:22,818 INFO L82 PathProgramCache]: Analyzing trace with hash -960644955, now seen corresponding path program 20 times [2021-10-21 19:02:22,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:22,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696348494] [2021-10-21 19:02:22,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:22,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:23,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:23,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696348494] [2021-10-21 19:02:23,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696348494] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:23,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101556814] [2021-10-21 19:02:23,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:02:23,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:23,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:23,087 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:23,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-21 19:02:23,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:02:23,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:23,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:02:23,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:23,896 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:23,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101556814] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:23,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:23,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-10-21 19:02:23,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318740389] [2021-10-21 19:02:23,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-21 19:02:23,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:23,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-21 19:02:23,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-21 19:02:23,899 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:23,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:23,968 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2021-10-21 19:02:23,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-21 19:02:23,969 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-10-21 19:02:23,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:23,973 INFO L225 Difference]: With dead ends: 113 [2021-10-21 19:02:23,973 INFO L226 Difference]: Without dead ends: 112 [2021-10-21 19:02:23,973 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 191.5ms TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-21 19:02:23,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-21 19:02:23,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2021-10-21 19:02:23,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.009090909090909) internal successors, (111), 110 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:23,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2021-10-21 19:02:23,991 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 105 [2021-10-21 19:02:23,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:23,992 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2021-10-21 19:02:24,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:24,000 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2021-10-21 19:02:24,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-10-21 19:02:24,001 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:24,002 INFO L512 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 1, 1, 1, 1] [2021-10-21 19:02:24,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:24,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-21 19:02:24,225 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:24,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:24,226 INFO L82 PathProgramCache]: Analyzing trace with hash -8523407, now seen corresponding path program 21 times [2021-10-21 19:02:24,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:24,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233523218] [2021-10-21 19:02:24,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:24,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:24,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:24,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:24,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233523218] [2021-10-21 19:02:24,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233523218] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:24,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054026789] [2021-10-21 19:02:24,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:02:24,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:24,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:24,525 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:24,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-21 19:02:24,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-10-21 19:02:24,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:24,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-21 19:02:24,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:25,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:25,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054026789] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:25,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:25,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-10-21 19:02:25,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206890336] [2021-10-21 19:02:25,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-21 19:02:25,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:25,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-21 19:02:25,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-21 19:02:25,265 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:25,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:25,349 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2021-10-21 19:02:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-21 19:02:25,349 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-10-21 19:02:25,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:25,350 INFO L225 Difference]: With dead ends: 118 [2021-10-21 19:02:25,350 INFO L226 Difference]: Without dead ends: 117 [2021-10-21 19:02:25,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 199.2ms TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-21 19:02:25,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-21 19:02:25,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2021-10-21 19:02:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.008695652173913) internal successors, (116), 115 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2021-10-21 19:02:25,357 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 110 [2021-10-21 19:02:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:25,357 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2021-10-21 19:02:25,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2021-10-21 19:02:25,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-10-21 19:02:25,359 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:25,359 INFO L512 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1] [2021-10-21 19:02:25,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:25,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-21 19:02:25,573 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:25,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:25,574 INFO L82 PathProgramCache]: Analyzing trace with hash 708663333, now seen corresponding path program 22 times [2021-10-21 19:02:25,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:25,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82000573] [2021-10-21 19:02:25,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:25,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:25,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:25,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:25,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82000573] [2021-10-21 19:02:25,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82000573] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:25,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911187962] [2021-10-21 19:02:25,884 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:02:25,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:25,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:25,885 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:25,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-21 19:02:26,311 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:02:26,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:26,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-21 19:02:26,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:26,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:26,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911187962] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:26,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:26,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-10-21 19:02:26,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487314723] [2021-10-21 19:02:26,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-21 19:02:26,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:26,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-21 19:02:26,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-21 19:02:26,633 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:26,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:26,707 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2021-10-21 19:02:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-21 19:02:26,707 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-10-21 19:02:26,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:26,708 INFO L225 Difference]: With dead ends: 123 [2021-10-21 19:02:26,709 INFO L226 Difference]: Without dead ends: 122 [2021-10-21 19:02:26,709 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 206.2ms TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-21 19:02:26,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-21 19:02:26,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2021-10-21 19:02:26,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.0083333333333333) internal successors, (121), 120 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:26,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2021-10-21 19:02:26,715 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 115 [2021-10-21 19:02:26,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:26,715 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2021-10-21 19:02:26,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:26,715 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2021-10-21 19:02:26,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-10-21 19:02:26,716 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:26,717 INFO L512 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 1, 1, 1, 1] [2021-10-21 19:02:26,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:26,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-21 19:02:26,937 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:26,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:26,938 INFO L82 PathProgramCache]: Analyzing trace with hash 542507505, now seen corresponding path program 23 times [2021-10-21 19:02:26,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:26,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393248631] [2021-10-21 19:02:26,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:26,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:27,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:27,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:27,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393248631] [2021-10-21 19:02:27,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393248631] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:27,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660016215] [2021-10-21 19:02:27,264 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:02:27,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:27,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:27,265 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:27,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-21 19:02:27,794 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-10-21 19:02:27,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:27,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-21 19:02:27,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:28,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660016215] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:28,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:28,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-10-21 19:02:28,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270855399] [2021-10-21 19:02:28,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-21 19:02:28,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:28,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-21 19:02:28,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-21 19:02:28,094 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:28,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:28,157 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2021-10-21 19:02:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-21 19:02:28,158 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-10-21 19:02:28,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:28,159 INFO L225 Difference]: With dead ends: 128 [2021-10-21 19:02:28,159 INFO L226 Difference]: Without dead ends: 127 [2021-10-21 19:02:28,160 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 232.9ms TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-21 19:02:28,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-21 19:02:28,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2021-10-21 19:02:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.008) internal successors, (126), 125 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:28,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2021-10-21 19:02:28,166 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 120 [2021-10-21 19:02:28,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:28,167 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2021-10-21 19:02:28,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:28,167 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2021-10-21 19:02:28,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-21 19:02:28,168 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:28,168 INFO L512 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 1, 1, 1, 1] [2021-10-21 19:02:28,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:28,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:28,381 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:28,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:28,382 INFO L82 PathProgramCache]: Analyzing trace with hash -128215131, now seen corresponding path program 24 times [2021-10-21 19:02:28,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:28,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229675839] [2021-10-21 19:02:28,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:28,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:28,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:28,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229675839] [2021-10-21 19:02:28,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229675839] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:28,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83745714] [2021-10-21 19:02:28,705 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:02:28,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:28,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:28,706 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:28,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-21 19:02:29,227 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-10-21 19:02:29,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:29,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-21 19:02:29,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:29,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83745714] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:29,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:29,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-10-21 19:02:29,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477374312] [2021-10-21 19:02:29,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-21 19:02:29,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:29,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-21 19:02:29,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-21 19:02:29,593 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:29,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:29,668 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2021-10-21 19:02:29,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-21 19:02:29,669 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-10-21 19:02:29,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:29,670 INFO L225 Difference]: With dead ends: 133 [2021-10-21 19:02:29,670 INFO L226 Difference]: Without dead ends: 132 [2021-10-21 19:02:29,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 239.8ms TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-21 19:02:29,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-21 19:02:29,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2021-10-21 19:02:29,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.0076923076923077) internal successors, (131), 130 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:29,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2021-10-21 19:02:29,675 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 125 [2021-10-21 19:02:29,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:29,676 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2021-10-21 19:02:29,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:29,676 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2021-10-21 19:02:29,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-10-21 19:02:29,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:29,678 INFO L512 BasicCegarLoop]: trace histogram [26, 25, 25, 25, 25, 1, 1, 1, 1] [2021-10-21 19:02:29,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:29,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-21 19:02:29,901 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:29,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:29,902 INFO L82 PathProgramCache]: Analyzing trace with hash -793546127, now seen corresponding path program 25 times [2021-10-21 19:02:29,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:29,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419393065] [2021-10-21 19:02:29,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:29,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:30,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1550 backedges. 0 proven. 1550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:30,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:30,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419393065] [2021-10-21 19:02:30,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419393065] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:30,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764302367] [2021-10-21 19:02:30,275 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:02:30,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:30,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:30,277 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:30,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-21 19:02:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:30,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-21 19:02:30,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:31,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1550 backedges. 0 proven. 1550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:31,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764302367] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:31,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:31,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-10-21 19:02:31,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403317528] [2021-10-21 19:02:31,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-21 19:02:31,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:31,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-21 19:02:31,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-21 19:02:31,192 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:31,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:31,268 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2021-10-21 19:02:31,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-21 19:02:31,269 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-10-21 19:02:31,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:31,270 INFO L225 Difference]: With dead ends: 138 [2021-10-21 19:02:31,270 INFO L226 Difference]: Without dead ends: 137 [2021-10-21 19:02:31,271 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 281.5ms TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-21 19:02:31,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-21 19:02:31,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 136. [2021-10-21 19:02:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.0074074074074073) internal successors, (136), 135 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 136 transitions. [2021-10-21 19:02:31,275 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 136 transitions. Word has length 130 [2021-10-21 19:02:31,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:31,276 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 136 transitions. [2021-10-21 19:02:31,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 136 transitions. [2021-10-21 19:02:31,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-10-21 19:02:31,277 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:31,278 INFO L512 BasicCegarLoop]: trace histogram [27, 26, 26, 26, 26, 1, 1, 1, 1] [2021-10-21 19:02:31,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:31,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:31,495 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:31,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:31,495 INFO L82 PathProgramCache]: Analyzing trace with hash -212830427, now seen corresponding path program 26 times [2021-10-21 19:02:31,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:31,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243484333] [2021-10-21 19:02:31,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:31,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:31,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 0 proven. 1677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:31,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:31,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243484333] [2021-10-21 19:02:31,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243484333] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:31,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394337657] [2021-10-21 19:02:31,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:02:31,864 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:31,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:31,877 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:31,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-21 19:02:32,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:02:32,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:32,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-21 19:02:32,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:32,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 0 proven. 1677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:32,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394337657] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:32,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:32,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-10-21 19:02:32,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271262] [2021-10-21 19:02:32,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-21 19:02:32,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:32,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-21 19:02:32,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-10-21 19:02:32,943 INFO L87 Difference]: Start difference. First operand 136 states and 136 transitions. Second operand has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:33,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:33,040 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2021-10-21 19:02:33,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-21 19:02:33,041 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-10-21 19:02:33,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:33,044 INFO L225 Difference]: With dead ends: 143 [2021-10-21 19:02:33,044 INFO L226 Difference]: Without dead ends: 142 [2021-10-21 19:02:33,045 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 278.6ms TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-10-21 19:02:33,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-21 19:02:33,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2021-10-21 19:02:33,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.0071428571428571) internal successors, (141), 140 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2021-10-21 19:02:33,051 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 135 [2021-10-21 19:02:33,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:33,051 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2021-10-21 19:02:33,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2021-10-21 19:02:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-10-21 19:02:33,053 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:33,053 INFO L512 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 1, 1, 1, 1] [2021-10-21 19:02:33,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:33,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:33,273 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:33,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:33,274 INFO L82 PathProgramCache]: Analyzing trace with hash -245480719, now seen corresponding path program 27 times [2021-10-21 19:02:33,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:33,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207748572] [2021-10-21 19:02:33,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:33,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 0 proven. 1809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:33,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:33,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207748572] [2021-10-21 19:02:33,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207748572] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:33,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563641845] [2021-10-21 19:02:33,706 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:02:33,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:33,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:33,708 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:33,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-21 19:02:34,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-10-21 19:02:34,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:34,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-21 19:02:34,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:34,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 0 proven. 1809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:34,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563641845] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:34,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:34,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-10-21 19:02:34,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566160253] [2021-10-21 19:02:34,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-21 19:02:34,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:34,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-21 19:02:34,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-21 19:02:34,755 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:34,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:34,839 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2021-10-21 19:02:34,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-21 19:02:34,840 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-10-21 19:02:34,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:34,842 INFO L225 Difference]: With dead ends: 148 [2021-10-21 19:02:34,842 INFO L226 Difference]: Without dead ends: 147 [2021-10-21 19:02:34,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 329.4ms TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-21 19:02:34,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-10-21 19:02:34,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2021-10-21 19:02:34,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.006896551724138) internal successors, (146), 145 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:34,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2021-10-21 19:02:34,847 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 140 [2021-10-21 19:02:34,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:34,848 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2021-10-21 19:02:34,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2021-10-21 19:02:34,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-10-21 19:02:34,849 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:34,849 INFO L512 BasicCegarLoop]: trace histogram [29, 28, 28, 28, 28, 1, 1, 1, 1] [2021-10-21 19:02:34,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-21 19:02:35,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-10-21 19:02:35,065 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:35,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:35,066 INFO L82 PathProgramCache]: Analyzing trace with hash 2001991333, now seen corresponding path program 28 times [2021-10-21 19:02:35,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:35,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963440701] [2021-10-21 19:02:35,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:35,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 0 proven. 1946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:35,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:35,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963440701] [2021-10-21 19:02:35,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963440701] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:35,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695676692] [2021-10-21 19:02:35,538 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:02:35,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:35,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:35,539 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:35,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-21 19:02:36,190 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:02:36,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:36,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-21 19:02:36,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 0 proven. 1946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:36,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695676692] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:36,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:36,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-10-21 19:02:36,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508693977] [2021-10-21 19:02:36,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-21 19:02:36,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:36,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-21 19:02:36,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-21 19:02:36,560 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:36,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:36,657 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2021-10-21 19:02:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-21 19:02:36,657 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-10-21 19:02:36,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:36,662 INFO L225 Difference]: With dead ends: 153 [2021-10-21 19:02:36,662 INFO L226 Difference]: Without dead ends: 152 [2021-10-21 19:02:36,664 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 352.1ms TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-21 19:02:36,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-21 19:02:36,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2021-10-21 19:02:36,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.0066666666666666) internal successors, (151), 150 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2021-10-21 19:02:36,670 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 145 [2021-10-21 19:02:36,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:36,671 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2021-10-21 19:02:36,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:36,672 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2021-10-21 19:02:36,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-10-21 19:02:36,672 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:36,673 INFO L512 BasicCegarLoop]: trace histogram [30, 29, 29, 29, 29, 1, 1, 1, 1] [2021-10-21 19:02:36,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:36,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-10-21 19:02:36,892 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:36,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:36,892 INFO L82 PathProgramCache]: Analyzing trace with hash 152990577, now seen corresponding path program 29 times [2021-10-21 19:02:36,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:36,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931198434] [2021-10-21 19:02:36,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:36,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2088 backedges. 0 proven. 2088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:37,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:37,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931198434] [2021-10-21 19:02:37,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931198434] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:37,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137850278] [2021-10-21 19:02:37,364 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:02:37,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:37,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:37,368 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:37,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-21 19:02:38,074 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-10-21 19:02:38,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:38,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-21 19:02:38,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2088 backedges. 0 proven. 2088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:38,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137850278] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:38,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:38,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-10-21 19:02:38,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222842085] [2021-10-21 19:02:38,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-21 19:02:38,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:38,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-21 19:02:38,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-10-21 19:02:38,468 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:38,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:38,531 INFO L93 Difference]: Finished difference Result 158 states and 158 transitions. [2021-10-21 19:02:38,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-21 19:02:38,531 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2021-10-21 19:02:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:38,532 INFO L225 Difference]: With dead ends: 158 [2021-10-21 19:02:38,532 INFO L226 Difference]: Without dead ends: 157 [2021-10-21 19:02:38,533 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 333.6ms TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-10-21 19:02:38,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-21 19:02:38,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2021-10-21 19:02:38,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 1.0064516129032257) internal successors, (156), 155 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 156 transitions. [2021-10-21 19:02:38,537 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 156 transitions. Word has length 150 [2021-10-21 19:02:38,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:38,538 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 156 transitions. [2021-10-21 19:02:38,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:38,538 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 156 transitions. [2021-10-21 19:02:38,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-10-21 19:02:38,539 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:38,539 INFO L512 BasicCegarLoop]: trace histogram [31, 30, 30, 30, 30, 1, 1, 1, 1] [2021-10-21 19:02:38,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-10-21 19:02:38,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-10-21 19:02:38,761 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:38,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:38,762 INFO L82 PathProgramCache]: Analyzing trace with hash -90302939, now seen corresponding path program 30 times [2021-10-21 19:02:38,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:38,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040044719] [2021-10-21 19:02:38,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:38,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:39,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:39,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040044719] [2021-10-21 19:02:39,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040044719] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:39,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327225947] [2021-10-21 19:02:39,287 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:02:39,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:39,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:39,289 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:39,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-21 19:02:40,058 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-10-21 19:02:40,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:40,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-21 19:02:40,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:40,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:40,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327225947] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:40,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:40,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-10-21 19:02:40,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845411108] [2021-10-21 19:02:40,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-21 19:02:40,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:40,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-21 19:02:40,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-10-21 19:02:40,501 INFO L87 Difference]: Start difference. First operand 156 states and 156 transitions. Second operand has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:40,584 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2021-10-21 19:02:40,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-21 19:02:40,584 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-10-21 19:02:40,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:40,586 INFO L225 Difference]: With dead ends: 163 [2021-10-21 19:02:40,586 INFO L226 Difference]: Without dead ends: 162 [2021-10-21 19:02:40,587 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 397.5ms TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-10-21 19:02:40,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-21 19:02:40,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2021-10-21 19:02:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.00625) internal successors, (161), 160 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:40,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2021-10-21 19:02:40,592 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 155 [2021-10-21 19:02:40,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:40,593 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2021-10-21 19:02:40,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:40,593 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2021-10-21 19:02:40,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-10-21 19:02:40,594 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:40,594 INFO L512 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 1, 1, 1, 1] [2021-10-21 19:02:40,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-21 19:02:40,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:40,801 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:40,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:40,802 INFO L82 PathProgramCache]: Analyzing trace with hash -994311183, now seen corresponding path program 31 times [2021-10-21 19:02:40,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:40,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652574454] [2021-10-21 19:02:40,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:40,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:41,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:41,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:41,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652574454] [2021-10-21 19:02:41,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652574454] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:41,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941409955] [2021-10-21 19:02:41,355 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:02:41,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:41,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:41,356 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:41,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-21 19:02:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:42,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-21 19:02:42,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:42,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941409955] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:42,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:42,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-10-21 19:02:42,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695269861] [2021-10-21 19:02:42,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-21 19:02:42,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:42,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-21 19:02:42,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-21 19:02:42,595 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:42,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:42,688 INFO L93 Difference]: Finished difference Result 168 states and 168 transitions. [2021-10-21 19:02:42,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-21 19:02:42,688 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-10-21 19:02:42,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:42,689 INFO L225 Difference]: With dead ends: 168 [2021-10-21 19:02:42,689 INFO L226 Difference]: Without dead ends: 167 [2021-10-21 19:02:42,690 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 416.0ms TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-21 19:02:42,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-10-21 19:02:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2021-10-21 19:02:42,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.006060606060606) internal successors, (166), 165 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:42,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2021-10-21 19:02:42,695 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 160 [2021-10-21 19:02:42,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:42,696 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2021-10-21 19:02:42,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:42,696 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2021-10-21 19:02:42,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-10-21 19:02:42,697 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:42,697 INFO L512 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 1, 1, 1, 1] [2021-10-21 19:02:42,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:42,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:42,917 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:42,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:42,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1922640475, now seen corresponding path program 32 times [2021-10-21 19:02:42,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:42,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110222121] [2021-10-21 19:02:42,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:42,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:43,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2544 backedges. 0 proven. 2544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:43,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:43,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110222121] [2021-10-21 19:02:43,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110222121] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:43,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406867056] [2021-10-21 19:02:43,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:02:43,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:43,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:43,483 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:43,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-21 19:02:44,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:02:44,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:44,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-21 19:02:44,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:44,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2544 backedges. 0 proven. 2544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:44,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406867056] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:44,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:44,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-10-21 19:02:44,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997102900] [2021-10-21 19:02:44,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-21 19:02:44,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:44,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-21 19:02:44,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-21 19:02:44,737 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:44,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:44,820 INFO L93 Difference]: Finished difference Result 173 states and 173 transitions. [2021-10-21 19:02:44,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-21 19:02:44,820 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2021-10-21 19:02:44,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:44,822 INFO L225 Difference]: With dead ends: 173 [2021-10-21 19:02:44,822 INFO L226 Difference]: Without dead ends: 172 [2021-10-21 19:02:44,822 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 439.5ms TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-21 19:02:44,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-21 19:02:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 171. [2021-10-21 19:02:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.0058823529411764) internal successors, (171), 170 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 171 transitions. [2021-10-21 19:02:44,846 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 171 transitions. Word has length 165 [2021-10-21 19:02:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:44,847 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 171 transitions. [2021-10-21 19:02:44,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:44,847 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 171 transitions. [2021-10-21 19:02:44,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-10-21 19:02:44,848 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:44,848 INFO L512 BasicCegarLoop]: trace histogram [34, 33, 33, 33, 33, 1, 1, 1, 1] [2021-10-21 19:02:44,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-10-21 19:02:45,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-21 19:02:45,061 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:45,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:45,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1996420209, now seen corresponding path program 33 times [2021-10-21 19:02:45,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:45,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860037154] [2021-10-21 19:02:45,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:45,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:45,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2706 backedges. 0 proven. 2706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:45,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:45,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860037154] [2021-10-21 19:02:45,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860037154] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:45,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230249726] [2021-10-21 19:02:45,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:02:45,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:45,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:45,553 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:45,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-21 19:02:46,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-10-21 19:02:46,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:46,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-21 19:02:46,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2706 backedges. 0 proven. 2706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:46,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230249726] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:46,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:46,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-10-21 19:02:46,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800459375] [2021-10-21 19:02:46,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-21 19:02:46,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:46,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-21 19:02:46,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-10-21 19:02:46,875 INFO L87 Difference]: Start difference. First operand 171 states and 171 transitions. Second operand has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:46,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:46,956 INFO L93 Difference]: Finished difference Result 178 states and 178 transitions. [2021-10-21 19:02:46,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-21 19:02:46,956 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2021-10-21 19:02:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:46,957 INFO L225 Difference]: With dead ends: 178 [2021-10-21 19:02:46,957 INFO L226 Difference]: Without dead ends: 177 [2021-10-21 19:02:46,958 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 385.3ms TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-10-21 19:02:46,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-10-21 19:02:46,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 176. [2021-10-21 19:02:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 1.0057142857142858) internal successors, (176), 175 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2021-10-21 19:02:46,961 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 170 [2021-10-21 19:02:46,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:46,962 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2021-10-21 19:02:46,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2021-10-21 19:02:46,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-10-21 19:02:46,963 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:46,963 INFO L512 BasicCegarLoop]: trace histogram [35, 34, 34, 34, 34, 1, 1, 1, 1] [2021-10-21 19:02:46,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-10-21 19:02:47,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-21 19:02:47,180 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:47,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:47,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1508259109, now seen corresponding path program 34 times [2021-10-21 19:02:47,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:47,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729383384] [2021-10-21 19:02:47,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:47,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2873 backedges. 0 proven. 2873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:47,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:47,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729383384] [2021-10-21 19:02:47,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729383384] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:47,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764153800] [2021-10-21 19:02:47,769 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:02:47,769 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:47,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:47,775 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:47,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-21 19:02:48,714 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:02:48,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:48,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-21 19:02:48,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:49,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2873 backedges. 0 proven. 2873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:49,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764153800] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:49,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:49,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-10-21 19:02:49,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063891458] [2021-10-21 19:02:49,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-21 19:02:49,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:49,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-21 19:02:49,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-10-21 19:02:49,155 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:49,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:49,232 INFO L93 Difference]: Finished difference Result 183 states and 183 transitions. [2021-10-21 19:02:49,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-21 19:02:49,233 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-10-21 19:02:49,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:49,234 INFO L225 Difference]: With dead ends: 183 [2021-10-21 19:02:49,235 INFO L226 Difference]: Without dead ends: 182 [2021-10-21 19:02:49,235 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 475.4ms TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-10-21 19:02:49,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-21 19:02:49,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2021-10-21 19:02:49,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.0055555555555555) internal successors, (181), 180 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2021-10-21 19:02:49,241 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 175 [2021-10-21 19:02:49,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:49,242 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2021-10-21 19:02:49,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:49,242 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2021-10-21 19:02:49,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-10-21 19:02:49,243 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:49,244 INFO L512 BasicCegarLoop]: trace histogram [36, 35, 35, 35, 35, 1, 1, 1, 1] [2021-10-21 19:02:49,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:49,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-10-21 19:02:49,465 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:49,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:49,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1733344015, now seen corresponding path program 35 times [2021-10-21 19:02:49,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:49,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485882072] [2021-10-21 19:02:49,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:49,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:50,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3045 backedges. 0 proven. 3045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:50,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:50,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485882072] [2021-10-21 19:02:50,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485882072] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:50,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313306217] [2021-10-21 19:02:50,160 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:02:50,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:50,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:50,165 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:50,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-21 19:02:51,166 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-10-21 19:02:51,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:51,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-21 19:02:51,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:51,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3045 backedges. 0 proven. 3045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:51,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313306217] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:51,653 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:51,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-10-21 19:02:51,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36088234] [2021-10-21 19:02:51,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-21 19:02:51,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:51,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-21 19:02:51,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-21 19:02:51,657 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:51,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:51,728 INFO L93 Difference]: Finished difference Result 188 states and 188 transitions. [2021-10-21 19:02:51,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-21 19:02:51,729 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2021-10-21 19:02:51,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:51,731 INFO L225 Difference]: With dead ends: 188 [2021-10-21 19:02:51,731 INFO L226 Difference]: Without dead ends: 187 [2021-10-21 19:02:51,732 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 541.7ms TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-21 19:02:51,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-21 19:02:51,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2021-10-21 19:02:51,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.0054054054054054) internal successors, (186), 185 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:51,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2021-10-21 19:02:51,737 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 180 [2021-10-21 19:02:51,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:51,738 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2021-10-21 19:02:51,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:51,738 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2021-10-21 19:02:51,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-10-21 19:02:51,740 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:51,740 INFO L512 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 1, 1, 1, 1] [2021-10-21 19:02:51,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:51,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-21 19:02:51,965 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:51,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:51,966 INFO L82 PathProgramCache]: Analyzing trace with hash 609498277, now seen corresponding path program 36 times [2021-10-21 19:02:51,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:51,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135054047] [2021-10-21 19:02:51,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:51,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:52,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 0 proven. 3222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:52,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:52,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135054047] [2021-10-21 19:02:52,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135054047] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:52,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927923966] [2021-10-21 19:02:52,572 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:02:52,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:52,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:52,573 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:52,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-21 19:02:53,667 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-10-21 19:02:53,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:53,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-21 19:02:53,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:54,133 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 0 proven. 3222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:54,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927923966] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:54,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:54,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-10-21 19:02:54,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033008734] [2021-10-21 19:02:54,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-10-21 19:02:54,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:54,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-10-21 19:02:54,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-21 19:02:54,136 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:54,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:54,212 INFO L93 Difference]: Finished difference Result 193 states and 193 transitions. [2021-10-21 19:02:54,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-21 19:02:54,212 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2021-10-21 19:02:54,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:54,214 INFO L225 Difference]: With dead ends: 193 [2021-10-21 19:02:54,214 INFO L226 Difference]: Without dead ends: 192 [2021-10-21 19:02:54,214 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 488.9ms TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-21 19:02:54,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-10-21 19:02:54,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2021-10-21 19:02:54,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 190 states have (on average 1.0052631578947369) internal successors, (191), 190 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:54,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 191 transitions. [2021-10-21 19:02:54,219 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 191 transitions. Word has length 185 [2021-10-21 19:02:54,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:54,220 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 191 transitions. [2021-10-21 19:02:54,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:54,220 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 191 transitions. [2021-10-21 19:02:54,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-10-21 19:02:54,221 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:54,221 INFO L512 BasicCegarLoop]: trace histogram [38, 37, 37, 37, 37, 1, 1, 1, 1] [2021-10-21 19:02:54,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2021-10-21 19:02:54,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-10-21 19:02:54,443 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:54,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:54,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1217721713, now seen corresponding path program 37 times [2021-10-21 19:02:54,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:54,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355513521] [2021-10-21 19:02:54,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:54,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3404 backedges. 0 proven. 3404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:55,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:55,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355513521] [2021-10-21 19:02:55,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355513521] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:55,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103743739] [2021-10-21 19:02:55,142 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:02:55,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:55,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:55,149 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:55,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-21 19:02:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:56,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-21 19:02:56,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:56,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3404 backedges. 0 proven. 3404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:56,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103743739] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:56,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:56,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-10-21 19:02:56,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067742603] [2021-10-21 19:02:56,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-21 19:02:56,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:56,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-21 19:02:56,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-21 19:02:56,730 INFO L87 Difference]: Start difference. First operand 191 states and 191 transitions. Second operand has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:56,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:56,834 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2021-10-21 19:02:56,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-21 19:02:56,835 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2021-10-21 19:02:56,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:56,836 INFO L225 Difference]: With dead ends: 198 [2021-10-21 19:02:56,837 INFO L226 Difference]: Without dead ends: 197 [2021-10-21 19:02:56,838 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 556.9ms TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-21 19:02:56,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-21 19:02:56,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2021-10-21 19:02:56,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.005128205128205) internal successors, (196), 195 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:56,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 196 transitions. [2021-10-21 19:02:56,844 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 196 transitions. Word has length 190 [2021-10-21 19:02:56,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:56,844 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 196 transitions. [2021-10-21 19:02:56,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:56,845 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 196 transitions. [2021-10-21 19:02:56,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-10-21 19:02:56,846 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:56,846 INFO L512 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 1, 1, 1, 1] [2021-10-21 19:02:56,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:57,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:57,063 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:57,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:57,064 INFO L82 PathProgramCache]: Analyzing trace with hash -890711003, now seen corresponding path program 38 times [2021-10-21 19:02:57,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:57,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904219835] [2021-10-21 19:02:57,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:57,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:02:57,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3591 backedges. 0 proven. 3591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:57,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:02:57,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904219835] [2021-10-21 19:02:57,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904219835] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:57,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614326771] [2021-10-21 19:02:57,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:02:57,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:02:57,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:02:57,761 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:02:57,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-21 19:02:58,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:02:58,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:02:58,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-21 19:02:58,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:02:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3591 backedges. 0 proven. 3591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:02:59,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614326771] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:02:59,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:02:59,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-10-21 19:02:59,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212790210] [2021-10-21 19:02:59,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-21 19:02:59,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:02:59,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-21 19:02:59,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-10-21 19:02:59,533 INFO L87 Difference]: Start difference. First operand 196 states and 196 transitions. Second operand has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:59,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:02:59,639 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2021-10-21 19:02:59,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-21 19:02:59,640 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2021-10-21 19:02:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:02:59,642 INFO L225 Difference]: With dead ends: 203 [2021-10-21 19:02:59,642 INFO L226 Difference]: Without dead ends: 202 [2021-10-21 19:02:59,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 510.5ms TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-10-21 19:02:59,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-21 19:02:59,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2021-10-21 19:02:59,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.005) internal successors, (201), 200 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:59,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 201 transitions. [2021-10-21 19:02:59,649 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 201 transitions. Word has length 195 [2021-10-21 19:02:59,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:02:59,649 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 201 transitions. [2021-10-21 19:02:59,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:02:59,650 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 201 transitions. [2021-10-21 19:02:59,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-10-21 19:02:59,651 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:02:59,651 INFO L512 BasicCegarLoop]: trace histogram [40, 39, 39, 39, 39, 1, 1, 1, 1] [2021-10-21 19:02:59,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-21 19:02:59,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-10-21 19:02:59,865 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:02:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:02:59,866 INFO L82 PathProgramCache]: Analyzing trace with hash -881326607, now seen corresponding path program 39 times [2021-10-21 19:02:59,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:02:59,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056583357] [2021-10-21 19:02:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:02:59,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:02:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:00,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 0 proven. 3783 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:00,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:00,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056583357] [2021-10-21 19:03:00,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056583357] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:00,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245498941] [2021-10-21 19:03:00,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:03:00,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:00,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:00,673 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:00,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-21 19:03:01,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-10-21 19:03:01,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:01,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-21 19:03:01,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:02,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 0 proven. 3783 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:02,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245498941] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:02,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:02,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-10-21 19:03:02,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281739768] [2021-10-21 19:03:02,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-21 19:03:02,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:02,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-21 19:03:02,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-21 19:03:02,391 INFO L87 Difference]: Start difference. First operand 201 states and 201 transitions. Second operand has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:02,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:02,519 INFO L93 Difference]: Finished difference Result 208 states and 208 transitions. [2021-10-21 19:03:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-21 19:03:02,519 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2021-10-21 19:03:02,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:02,521 INFO L225 Difference]: With dead ends: 208 [2021-10-21 19:03:02,521 INFO L226 Difference]: Without dead ends: 207 [2021-10-21 19:03:02,522 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 637.4ms TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-21 19:03:02,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-21 19:03:02,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 206. [2021-10-21 19:03:02,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.0048780487804878) internal successors, (206), 205 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:02,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 206 transitions. [2021-10-21 19:03:02,528 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 206 transitions. Word has length 200 [2021-10-21 19:03:02,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:02,529 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 206 transitions. [2021-10-21 19:03:02,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:02,533 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 206 transitions. [2021-10-21 19:03:02,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-10-21 19:03:02,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:02,535 INFO L512 BasicCegarLoop]: trace histogram [41, 40, 40, 40, 40, 1, 1, 1, 1] [2021-10-21 19:03:02,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:02,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:02,749 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:02,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:02,750 INFO L82 PathProgramCache]: Analyzing trace with hash -975432795, now seen corresponding path program 40 times [2021-10-21 19:03:02,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:02,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481419700] [2021-10-21 19:03:02,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:02,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:03,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3980 backedges. 0 proven. 3980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:03,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:03,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481419700] [2021-10-21 19:03:03,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481419700] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:03,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528156007] [2021-10-21 19:03:03,588 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:03:03,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:03,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:03,590 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:03,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-21 19:03:04,836 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:03:04,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:04,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-21 19:03:04,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3980 backedges. 0 proven. 3980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:05,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528156007] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:05,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:05,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-10-21 19:03:05,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443703720] [2021-10-21 19:03:05,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-21 19:03:05,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:05,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-21 19:03:05,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-21 19:03:05,335 INFO L87 Difference]: Start difference. First operand 206 states and 206 transitions. Second operand has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:05,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:05,443 INFO L93 Difference]: Finished difference Result 213 states and 213 transitions. [2021-10-21 19:03:05,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-21 19:03:05,444 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2021-10-21 19:03:05,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:05,446 INFO L225 Difference]: With dead ends: 213 [2021-10-21 19:03:05,446 INFO L226 Difference]: Without dead ends: 212 [2021-10-21 19:03:05,447 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 708.0ms TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-21 19:03:05,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-10-21 19:03:05,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 211. [2021-10-21 19:03:05,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.0047619047619047) internal successors, (211), 210 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:05,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 211 transitions. [2021-10-21 19:03:05,453 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 211 transitions. Word has length 205 [2021-10-21 19:03:05,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:05,454 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 211 transitions. [2021-10-21 19:03:05,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:05,454 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 211 transitions. [2021-10-21 19:03:05,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-10-21 19:03:05,455 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:05,455 INFO L512 BasicCegarLoop]: trace histogram [42, 41, 41, 41, 41, 1, 1, 1, 1] [2021-10-21 19:03:05,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-10-21 19:03:05,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-10-21 19:03:05,669 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:05,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:05,670 INFO L82 PathProgramCache]: Analyzing trace with hash 203454065, now seen corresponding path program 41 times [2021-10-21 19:03:05,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:05,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488277064] [2021-10-21 19:03:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:05,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:06,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 0 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:06,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:06,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488277064] [2021-10-21 19:03:06,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488277064] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:06,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160456130] [2021-10-21 19:03:06,556 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:03:06,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:06,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:06,557 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:06,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-21 19:03:08,176 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-10-21 19:03:08,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:08,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-21 19:03:08,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:08,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 0 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:08,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160456130] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:08,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:08,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-10-21 19:03:08,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753689763] [2021-10-21 19:03:08,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-10-21 19:03:08,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:08,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-10-21 19:03:08,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-10-21 19:03:08,780 INFO L87 Difference]: Start difference. First operand 211 states and 211 transitions. Second operand has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:08,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:08,889 INFO L93 Difference]: Finished difference Result 218 states and 218 transitions. [2021-10-21 19:03:08,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-21 19:03:08,890 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-10-21 19:03:08,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:08,891 INFO L225 Difference]: With dead ends: 218 [2021-10-21 19:03:08,891 INFO L226 Difference]: Without dead ends: 217 [2021-10-21 19:03:08,892 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 716.5ms TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-10-21 19:03:08,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-10-21 19:03:08,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 216. [2021-10-21 19:03:08,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.0046511627906978) internal successors, (216), 215 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:08,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 216 transitions. [2021-10-21 19:03:08,896 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 216 transitions. Word has length 210 [2021-10-21 19:03:08,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:08,897 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 216 transitions. [2021-10-21 19:03:08,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:08,897 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 216 transitions. [2021-10-21 19:03:08,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-10-21 19:03:08,898 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:08,899 INFO L512 BasicCegarLoop]: trace histogram [43, 42, 42, 42, 42, 1, 1, 1, 1] [2021-10-21 19:03:08,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:09,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-10-21 19:03:09,113 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:09,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:09,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1486490843, now seen corresponding path program 42 times [2021-10-21 19:03:09,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:09,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817234701] [2021-10-21 19:03:09,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:09,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:10,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 0 proven. 4389 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:10,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:10,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817234701] [2021-10-21 19:03:10,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817234701] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:10,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529214831] [2021-10-21 19:03:10,012 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:03:10,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:10,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:10,013 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:10,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-21 19:03:11,456 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-10-21 19:03:11,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:11,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-21 19:03:11,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 0 proven. 4389 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:11,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529214831] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:11,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:11,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-10-21 19:03:11,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649645368] [2021-10-21 19:03:11,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-10-21 19:03:11,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:11,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-10-21 19:03:11,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-10-21 19:03:11,996 INFO L87 Difference]: Start difference. First operand 216 states and 216 transitions. Second operand has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:12,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:12,121 INFO L93 Difference]: Finished difference Result 223 states and 223 transitions. [2021-10-21 19:03:12,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-21 19:03:12,122 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2021-10-21 19:03:12,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:12,124 INFO L225 Difference]: With dead ends: 223 [2021-10-21 19:03:12,124 INFO L226 Difference]: Without dead ends: 222 [2021-10-21 19:03:12,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 760.9ms TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-10-21 19:03:12,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-10-21 19:03:12,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 221. [2021-10-21 19:03:12,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.0045454545454546) internal successors, (221), 220 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:12,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 221 transitions. [2021-10-21 19:03:12,130 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 221 transitions. Word has length 215 [2021-10-21 19:03:12,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:12,130 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 221 transitions. [2021-10-21 19:03:12,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:12,131 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 221 transitions. [2021-10-21 19:03:12,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-10-21 19:03:12,131 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:12,132 INFO L512 BasicCegarLoop]: trace histogram [44, 43, 43, 43, 43, 1, 1, 1, 1] [2021-10-21 19:03:12,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2021-10-21 19:03:12,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-10-21 19:03:12,332 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:12,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:12,333 INFO L82 PathProgramCache]: Analyzing trace with hash 458639089, now seen corresponding path program 43 times [2021-10-21 19:03:12,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:12,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886709287] [2021-10-21 19:03:12,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:12,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 4601 backedges. 0 proven. 4601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:13,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:13,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886709287] [2021-10-21 19:03:13,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886709287] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:13,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275264121] [2021-10-21 19:03:13,224 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:03:13,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:13,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:13,224 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:13,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-21 19:03:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:14,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-21 19:03:14,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4601 backedges. 0 proven. 4601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:15,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275264121] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:15,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:15,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-10-21 19:03:15,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365804698] [2021-10-21 19:03:15,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-21 19:03:15,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:15,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-21 19:03:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-21 19:03:15,235 INFO L87 Difference]: Start difference. First operand 221 states and 221 transitions. Second operand has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:15,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:15,348 INFO L93 Difference]: Finished difference Result 228 states and 228 transitions. [2021-10-21 19:03:15,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-21 19:03:15,348 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2021-10-21 19:03:15,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:15,350 INFO L225 Difference]: With dead ends: 228 [2021-10-21 19:03:15,350 INFO L226 Difference]: Without dead ends: 227 [2021-10-21 19:03:15,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 734.7ms TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-21 19:03:15,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-21 19:03:15,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 226. [2021-10-21 19:03:15,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.0044444444444445) internal successors, (226), 225 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 226 transitions. [2021-10-21 19:03:15,357 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 226 transitions. Word has length 220 [2021-10-21 19:03:15,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:15,358 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 226 transitions. [2021-10-21 19:03:15,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:15,358 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 226 transitions. [2021-10-21 19:03:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-10-21 19:03:15,359 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:15,359 INFO L512 BasicCegarLoop]: trace histogram [45, 44, 44, 44, 44, 1, 1, 1, 1] [2021-10-21 19:03:15,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2021-10-21 19:03:15,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-10-21 19:03:15,585 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:15,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:15,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1682017627, now seen corresponding path program 44 times [2021-10-21 19:03:15,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:15,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105385429] [2021-10-21 19:03:15,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:15,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 0 proven. 4818 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:16,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:16,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105385429] [2021-10-21 19:03:16,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105385429] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:16,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945865071] [2021-10-21 19:03:16,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:03:16,467 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:16,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:16,468 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:16,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-21 19:03:17,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:03:17,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:17,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-21 19:03:17,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 0 proven. 4818 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:18,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945865071] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:18,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:18,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-10-21 19:03:18,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383423030] [2021-10-21 19:03:18,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-10-21 19:03:18,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:18,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-10-21 19:03:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-21 19:03:18,499 INFO L87 Difference]: Start difference. First operand 226 states and 226 transitions. Second operand has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:18,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:18,635 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2021-10-21 19:03:18,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-21 19:03:18,636 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-10-21 19:03:18,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:18,638 INFO L225 Difference]: With dead ends: 233 [2021-10-21 19:03:18,638 INFO L226 Difference]: Without dead ends: 232 [2021-10-21 19:03:18,638 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 685.2ms TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-21 19:03:18,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-10-21 19:03:18,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 231. [2021-10-21 19:03:18,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 1.0043478260869565) internal successors, (231), 230 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:18,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 231 transitions. [2021-10-21 19:03:18,645 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 231 transitions. Word has length 225 [2021-10-21 19:03:18,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:18,645 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 231 transitions. [2021-10-21 19:03:18,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:18,646 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 231 transitions. [2021-10-21 19:03:18,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-10-21 19:03:18,647 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:18,647 INFO L512 BasicCegarLoop]: trace histogram [46, 45, 45, 45, 45, 1, 1, 1, 1] [2021-10-21 19:03:18,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:18,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-21 19:03:18,873 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:18,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:18,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1344178319, now seen corresponding path program 45 times [2021-10-21 19:03:18,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:18,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957876697] [2021-10-21 19:03:18,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:18,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 5040 backedges. 0 proven. 5040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:19,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:19,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957876697] [2021-10-21 19:03:19,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957876697] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:19,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341560500] [2021-10-21 19:03:19,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:03:19,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:19,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:19,825 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:19,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-21 19:03:21,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-10-21 19:03:21,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:21,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-21 19:03:21,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 5040 backedges. 0 proven. 5040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:22,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341560500] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:22,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:22,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-10-21 19:03:22,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619968364] [2021-10-21 19:03:22,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-10-21 19:03:22,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:22,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-10-21 19:03:22,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-10-21 19:03:22,133 INFO L87 Difference]: Start difference. First operand 231 states and 231 transitions. Second operand has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:22,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:22,257 INFO L93 Difference]: Finished difference Result 238 states and 238 transitions. [2021-10-21 19:03:22,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-21 19:03:22,258 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2021-10-21 19:03:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:22,262 INFO L225 Difference]: With dead ends: 238 [2021-10-21 19:03:22,263 INFO L226 Difference]: Without dead ends: 237 [2021-10-21 19:03:22,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 808.7ms TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-10-21 19:03:22,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-10-21 19:03:22,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2021-10-21 19:03:22,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.004255319148936) internal successors, (236), 235 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:22,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2021-10-21 19:03:22,271 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 230 [2021-10-21 19:03:22,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:22,271 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2021-10-21 19:03:22,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:22,272 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2021-10-21 19:03:22,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-10-21 19:03:22,274 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:22,274 INFO L512 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1, 1] [2021-10-21 19:03:22,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:22,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-10-21 19:03:22,488 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:22,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:22,488 INFO L82 PathProgramCache]: Analyzing trace with hash -383938011, now seen corresponding path program 46 times [2021-10-21 19:03:22,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:22,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301214276] [2021-10-21 19:03:22,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:22,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:23,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:23,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301214276] [2021-10-21 19:03:23,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301214276] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:23,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044351911] [2021-10-21 19:03:23,403 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:03:23,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:23,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:23,404 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:23,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-21 19:03:25,076 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:03:25,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:25,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-21 19:03:25,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:25,657 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:25,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044351911] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:25,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:25,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-10-21 19:03:25,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138751006] [2021-10-21 19:03:25,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-10-21 19:03:25,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:25,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-10-21 19:03:25,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-10-21 19:03:25,659 INFO L87 Difference]: Start difference. First operand 236 states and 236 transitions. Second operand has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:25,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:25,758 INFO L93 Difference]: Finished difference Result 243 states and 243 transitions. [2021-10-21 19:03:25,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-21 19:03:25,759 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 235 [2021-10-21 19:03:25,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:25,760 INFO L225 Difference]: With dead ends: 243 [2021-10-21 19:03:25,760 INFO L226 Difference]: Without dead ends: 242 [2021-10-21 19:03:25,761 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 746.6ms TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-10-21 19:03:25,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-21 19:03:25,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 241. [2021-10-21 19:03:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.0041666666666667) internal successors, (241), 240 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 241 transitions. [2021-10-21 19:03:25,767 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 241 transitions. Word has length 235 [2021-10-21 19:03:25,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:25,767 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 241 transitions. [2021-10-21 19:03:25,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:25,768 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 241 transitions. [2021-10-21 19:03:25,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-10-21 19:03:25,769 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:25,769 INFO L512 BasicCegarLoop]: trace histogram [48, 47, 47, 47, 47, 1, 1, 1, 1] [2021-10-21 19:03:25,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:25,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:25,977 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:25,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:25,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1500903439, now seen corresponding path program 47 times [2021-10-21 19:03:25,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:25,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852871458] [2021-10-21 19:03:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:25,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5499 backedges. 0 proven. 5499 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:26,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:26,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852871458] [2021-10-21 19:03:26,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852871458] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:26,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089381607] [2021-10-21 19:03:26,876 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:03:26,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:26,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:26,886 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:26,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-21 19:03:28,661 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-10-21 19:03:28,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:28,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-21 19:03:28,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:29,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5499 backedges. 0 proven. 5499 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:29,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089381607] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:29,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:29,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-10-21 19:03:29,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598485102] [2021-10-21 19:03:29,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-10-21 19:03:29,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:29,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-10-21 19:03:29,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-21 19:03:29,241 INFO L87 Difference]: Start difference. First operand 241 states and 241 transitions. Second operand has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:29,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:29,345 INFO L93 Difference]: Finished difference Result 248 states and 248 transitions. [2021-10-21 19:03:29,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-21 19:03:29,346 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2021-10-21 19:03:29,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:29,347 INFO L225 Difference]: With dead ends: 248 [2021-10-21 19:03:29,347 INFO L226 Difference]: Without dead ends: 247 [2021-10-21 19:03:29,347 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 756.7ms TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-21 19:03:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-21 19:03:29,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 246. [2021-10-21 19:03:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.0040816326530613) internal successors, (246), 245 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 246 transitions. [2021-10-21 19:03:29,354 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 246 transitions. Word has length 240 [2021-10-21 19:03:29,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:29,355 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 246 transitions. [2021-10-21 19:03:29,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:29,355 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 246 transitions. [2021-10-21 19:03:29,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-10-21 19:03:29,357 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:29,357 INFO L512 BasicCegarLoop]: trace histogram [49, 48, 48, 48, 48, 1, 1, 1, 1] [2021-10-21 19:03:29,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:29,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:29,573 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:29,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:29,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1874547109, now seen corresponding path program 48 times [2021-10-21 19:03:29,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:29,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736066801] [2021-10-21 19:03:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:29,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 5736 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:30,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:30,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736066801] [2021-10-21 19:03:30,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736066801] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:30,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353145593] [2021-10-21 19:03:30,546 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:03:30,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:30,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:30,547 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:30,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-21 19:03:32,410 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-10-21 19:03:32,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:32,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-21 19:03:32,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:32,968 INFO L134 CoverageAnalysis]: Checked inductivity of 5736 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:32,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353145593] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:32,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:32,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-10-21 19:03:32,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446638764] [2021-10-21 19:03:32,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-10-21 19:03:32,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:32,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-10-21 19:03:32,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-21 19:03:32,970 INFO L87 Difference]: Start difference. First operand 246 states and 246 transitions. Second operand has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:33,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:33,082 INFO L93 Difference]: Finished difference Result 253 states and 253 transitions. [2021-10-21 19:03:33,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-21 19:03:33,082 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-10-21 19:03:33,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:33,084 INFO L225 Difference]: With dead ends: 253 [2021-10-21 19:03:33,084 INFO L226 Difference]: Without dead ends: 252 [2021-10-21 19:03:33,084 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 814.6ms TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-21 19:03:33,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-10-21 19:03:33,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 251. [2021-10-21 19:03:33,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.004) internal successors, (251), 250 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:33,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 251 transitions. [2021-10-21 19:03:33,091 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 251 transitions. Word has length 245 [2021-10-21 19:03:33,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:33,091 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 251 transitions. [2021-10-21 19:03:33,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:33,092 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 251 transitions. [2021-10-21 19:03:33,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-10-21 19:03:33,093 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:33,093 INFO L512 BasicCegarLoop]: trace histogram [50, 49, 49, 49, 49, 1, 1, 1, 1] [2021-10-21 19:03:33,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:33,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:33,317 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:33,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:33,318 INFO L82 PathProgramCache]: Analyzing trace with hash -2112358287, now seen corresponding path program 49 times [2021-10-21 19:03:33,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:33,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494985313] [2021-10-21 19:03:33,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:33,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:34,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5978 backedges. 0 proven. 5978 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:34,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:34,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494985313] [2021-10-21 19:03:34,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494985313] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:34,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491234304] [2021-10-21 19:03:34,353 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:03:34,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:34,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:34,356 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:34,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-10-21 19:03:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:36,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-21 19:03:36,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:36,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5978 backedges. 0 proven. 5978 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:36,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491234304] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:36,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:36,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-10-21 19:03:36,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081625668] [2021-10-21 19:03:36,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-10-21 19:03:36,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:36,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-10-21 19:03:36,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-21 19:03:36,903 INFO L87 Difference]: Start difference. First operand 251 states and 251 transitions. Second operand has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:37,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:37,037 INFO L93 Difference]: Finished difference Result 258 states and 258 transitions. [2021-10-21 19:03:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-21 19:03:37,038 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2021-10-21 19:03:37,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:37,040 INFO L225 Difference]: With dead ends: 258 [2021-10-21 19:03:37,040 INFO L226 Difference]: Without dead ends: 257 [2021-10-21 19:03:37,041 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 876.0ms TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-21 19:03:37,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-10-21 19:03:37,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 256. [2021-10-21 19:03:37,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.003921568627451) internal successors, (256), 255 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 256 transitions. [2021-10-21 19:03:37,048 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 256 transitions. Word has length 250 [2021-10-21 19:03:37,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:37,048 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 256 transitions. [2021-10-21 19:03:37,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:37,049 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 256 transitions. [2021-10-21 19:03:37,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-10-21 19:03:37,050 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:37,051 INFO L512 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 1, 1, 1, 1] [2021-10-21 19:03:37,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:37,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:37,277 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:37,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:37,277 INFO L82 PathProgramCache]: Analyzing trace with hash 701477157, now seen corresponding path program 50 times [2021-10-21 19:03:37,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:37,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236745050] [2021-10-21 19:03:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:37,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6225 backedges. 0 proven. 6225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:38,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:38,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236745050] [2021-10-21 19:03:38,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236745050] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:38,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298151867] [2021-10-21 19:03:38,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:03:38,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:38,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:38,319 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:38,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-10-21 19:03:40,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:03:40,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:40,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-21 19:03:40,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:41,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6225 backedges. 0 proven. 6225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:41,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298151867] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:41,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:41,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-10-21 19:03:41,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556276263] [2021-10-21 19:03:41,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-10-21 19:03:41,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:41,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-10-21 19:03:41,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-10-21 19:03:41,067 INFO L87 Difference]: Start difference. First operand 256 states and 256 transitions. Second operand has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:41,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:41,214 INFO L93 Difference]: Finished difference Result 263 states and 263 transitions. [2021-10-21 19:03:41,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-10-21 19:03:41,215 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2021-10-21 19:03:41,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:41,217 INFO L225 Difference]: With dead ends: 263 [2021-10-21 19:03:41,217 INFO L226 Difference]: Without dead ends: 262 [2021-10-21 19:03:41,217 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 872.3ms TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-10-21 19:03:41,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-10-21 19:03:41,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 261. [2021-10-21 19:03:41,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.0038461538461538) internal successors, (261), 260 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:41,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 261 transitions. [2021-10-21 19:03:41,223 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 261 transitions. Word has length 255 [2021-10-21 19:03:41,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:41,224 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 261 transitions. [2021-10-21 19:03:41,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:41,225 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 261 transitions. [2021-10-21 19:03:41,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-10-21 19:03:41,227 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:41,227 INFO L512 BasicCegarLoop]: trace histogram [52, 51, 51, 51, 51, 1, 1, 1, 1] [2021-10-21 19:03:41,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:41,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-10-21 19:03:41,445 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:41,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:41,446 INFO L82 PathProgramCache]: Analyzing trace with hash -346863375, now seen corresponding path program 51 times [2021-10-21 19:03:41,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:41,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268435013] [2021-10-21 19:03:41,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:41,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 6477 backedges. 0 proven. 6477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:42,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:42,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268435013] [2021-10-21 19:03:42,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268435013] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:42,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693009929] [2021-10-21 19:03:42,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:03:42,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:42,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:42,504 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:42,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-10-21 19:03:44,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-10-21 19:03:44,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:44,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-21 19:03:44,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 6477 backedges. 0 proven. 6477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:45,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693009929] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:45,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:45,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-10-21 19:03:45,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739188148] [2021-10-21 19:03:45,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-10-21 19:03:45,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:45,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-10-21 19:03:45,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-10-21 19:03:45,208 INFO L87 Difference]: Start difference. First operand 261 states and 261 transitions. Second operand has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:45,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:45,344 INFO L93 Difference]: Finished difference Result 268 states and 268 transitions. [2021-10-21 19:03:45,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-21 19:03:45,344 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 260 [2021-10-21 19:03:45,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:45,345 INFO L225 Difference]: With dead ends: 268 [2021-10-21 19:03:45,345 INFO L226 Difference]: Without dead ends: 267 [2021-10-21 19:03:45,346 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 896.7ms TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-10-21 19:03:45,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-10-21 19:03:45,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 266. [2021-10-21 19:03:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.0037735849056604) internal successors, (266), 265 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:45,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 266 transitions. [2021-10-21 19:03:45,350 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 266 transitions. Word has length 260 [2021-10-21 19:03:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:45,350 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 266 transitions. [2021-10-21 19:03:45,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 266 transitions. [2021-10-21 19:03:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-10-21 19:03:45,351 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:45,352 INFO L512 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 1, 1, 1, 1] [2021-10-21 19:03:45,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:45,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-10-21 19:03:45,552 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:45,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:45,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1416449883, now seen corresponding path program 52 times [2021-10-21 19:03:45,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:45,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671081299] [2021-10-21 19:03:45,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:45,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:46,761 INFO L134 CoverageAnalysis]: Checked inductivity of 6734 backedges. 0 proven. 6734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:46,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:46,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671081299] [2021-10-21 19:03:46,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671081299] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:46,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313522265] [2021-10-21 19:03:46,761 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:03:46,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:46,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:46,762 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:46,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-21 19:03:48,839 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:03:48,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:48,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 54 conjunts are in the unsatisfiable core [2021-10-21 19:03:48,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:49,553 INFO L134 CoverageAnalysis]: Checked inductivity of 6734 backedges. 0 proven. 6734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:49,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313522265] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:49,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:49,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 54 [2021-10-21 19:03:49,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759820014] [2021-10-21 19:03:49,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-10-21 19:03:49,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:49,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-10-21 19:03:49,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-10-21 19:03:49,556 INFO L87 Difference]: Start difference. First operand 266 states and 266 transitions. Second operand has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:49,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:49,729 INFO L93 Difference]: Finished difference Result 273 states and 273 transitions. [2021-10-21 19:03:49,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-21 19:03:49,730 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2021-10-21 19:03:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:49,732 INFO L225 Difference]: With dead ends: 273 [2021-10-21 19:03:49,732 INFO L226 Difference]: Without dead ends: 272 [2021-10-21 19:03:49,733 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1053.6ms TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-10-21 19:03:49,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-21 19:03:49,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 271. [2021-10-21 19:03:49,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.0037037037037038) internal successors, (271), 270 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:49,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 271 transitions. [2021-10-21 19:03:49,740 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 271 transitions. Word has length 265 [2021-10-21 19:03:49,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:49,740 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 271 transitions. [2021-10-21 19:03:49,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:49,741 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 271 transitions. [2021-10-21 19:03:49,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-10-21 19:03:49,742 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:49,742 INFO L512 BasicCegarLoop]: trace histogram [54, 53, 53, 53, 53, 1, 1, 1, 1] [2021-10-21 19:03:49,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:49,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-10-21 19:03:49,969 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:49,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:49,970 INFO L82 PathProgramCache]: Analyzing trace with hash 822344049, now seen corresponding path program 53 times [2021-10-21 19:03:49,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:49,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943220528] [2021-10-21 19:03:49,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:49,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6996 backedges. 0 proven. 6996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:51,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:51,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943220528] [2021-10-21 19:03:51,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943220528] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:51,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671039314] [2021-10-21 19:03:51,232 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:03:51,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:51,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:51,232 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:51,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-21 19:03:53,441 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-10-21 19:03:53,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:53,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-21 19:03:53,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:54,137 INFO L134 CoverageAnalysis]: Checked inductivity of 6996 backedges. 0 proven. 6996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:54,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671039314] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:54,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:54,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 55 [2021-10-21 19:03:54,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417336933] [2021-10-21 19:03:54,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-10-21 19:03:54,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:54,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-10-21 19:03:54,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-10-21 19:03:54,140 INFO L87 Difference]: Start difference. First operand 271 states and 271 transitions. Second operand has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:54,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:54,268 INFO L93 Difference]: Finished difference Result 278 states and 278 transitions. [2021-10-21 19:03:54,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-10-21 19:03:54,268 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2021-10-21 19:03:54,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:54,270 INFO L225 Difference]: With dead ends: 278 [2021-10-21 19:03:54,270 INFO L226 Difference]: Without dead ends: 277 [2021-10-21 19:03:54,270 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1095.4ms TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-10-21 19:03:54,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-10-21 19:03:54,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 276. [2021-10-21 19:03:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 275 states have (on average 1.0036363636363637) internal successors, (276), 275 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 276 transitions. [2021-10-21 19:03:54,277 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 276 transitions. Word has length 270 [2021-10-21 19:03:54,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:54,278 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 276 transitions. [2021-10-21 19:03:54,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:54,278 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 276 transitions. [2021-10-21 19:03:54,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-10-21 19:03:54,280 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:54,281 INFO L512 BasicCegarLoop]: trace histogram [55, 54, 54, 54, 54, 1, 1, 1, 1] [2021-10-21 19:03:54,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-10-21 19:03:54,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-10-21 19:03:54,509 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:54,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:54,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1556328411, now seen corresponding path program 54 times [2021-10-21 19:03:54,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:54,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594716060] [2021-10-21 19:03:54,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:54,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:03:55,697 INFO L134 CoverageAnalysis]: Checked inductivity of 7263 backedges. 0 proven. 7263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:55,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:03:55,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594716060] [2021-10-21 19:03:55,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594716060] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:55,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671981826] [2021-10-21 19:03:55,698 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:03:55,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:55,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:03:55,699 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:03:55,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-10-21 19:03:58,000 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-10-21 19:03:58,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:03:58,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 56 conjunts are in the unsatisfiable core [2021-10-21 19:03:58,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:03:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 7263 backedges. 0 proven. 7263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:03:58,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671981826] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:03:58,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:03:58,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 56 [2021-10-21 19:03:58,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654126354] [2021-10-21 19:03:58,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-10-21 19:03:58,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:03:58,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-10-21 19:03:58,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-10-21 19:03:58,699 INFO L87 Difference]: Start difference. First operand 276 states and 276 transitions. Second operand has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:58,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:03:58,855 INFO L93 Difference]: Finished difference Result 283 states and 283 transitions. [2021-10-21 19:03:58,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-10-21 19:03:58,856 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2021-10-21 19:03:58,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:03:58,858 INFO L225 Difference]: With dead ends: 283 [2021-10-21 19:03:58,858 INFO L226 Difference]: Without dead ends: 282 [2021-10-21 19:03:58,859 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 994.5ms TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-10-21 19:03:58,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-21 19:03:58,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 281. [2021-10-21 19:03:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.0035714285714286) internal successors, (281), 280 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:58,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 281 transitions. [2021-10-21 19:03:58,865 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 281 transitions. Word has length 275 [2021-10-21 19:03:58,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:03:58,866 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 281 transitions. [2021-10-21 19:03:58,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:03:58,866 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 281 transitions. [2021-10-21 19:03:58,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-10-21 19:03:58,868 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:03:58,868 INFO L512 BasicCegarLoop]: trace histogram [56, 55, 55, 55, 55, 1, 1, 1, 1] [2021-10-21 19:03:58,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2021-10-21 19:03:59,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:03:59,089 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:03:59,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:03:59,090 INFO L82 PathProgramCache]: Analyzing trace with hash -940439055, now seen corresponding path program 55 times [2021-10-21 19:03:59,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:03:59,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554930191] [2021-10-21 19:03:59,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:03:59,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:03:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 7535 backedges. 0 proven. 7535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:00,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:00,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554930191] [2021-10-21 19:04:00,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554930191] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:00,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558117945] [2021-10-21 19:04:00,411 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:04:00,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:00,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:00,413 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:00,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-10-21 19:04:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:02,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-21 19:04:02,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:03,364 INFO L134 CoverageAnalysis]: Checked inductivity of 7535 backedges. 0 proven. 7535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:03,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558117945] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:03,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:03,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 57 [2021-10-21 19:04:03,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051065494] [2021-10-21 19:04:03,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-10-21 19:04:03,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:03,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-10-21 19:04:03,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-10-21 19:04:03,367 INFO L87 Difference]: Start difference. First operand 281 states and 281 transitions. Second operand has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:03,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:03,495 INFO L93 Difference]: Finished difference Result 288 states and 288 transitions. [2021-10-21 19:04:03,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-10-21 19:04:03,496 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2021-10-21 19:04:03,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:03,497 INFO L225 Difference]: With dead ends: 288 [2021-10-21 19:04:03,497 INFO L226 Difference]: Without dead ends: 287 [2021-10-21 19:04:03,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1107.2ms TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-10-21 19:04:03,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-10-21 19:04:03,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 286. [2021-10-21 19:04:03,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 1.0035087719298246) internal successors, (286), 285 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2021-10-21 19:04:03,505 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 280 [2021-10-21 19:04:03,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:03,505 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2021-10-21 19:04:03,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2021-10-21 19:04:03,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-10-21 19:04:03,508 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:03,508 INFO L512 BasicCegarLoop]: trace histogram [57, 56, 56, 56, 56, 1, 1, 1, 1] [2021-10-21 19:04:03,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2021-10-21 19:04:03,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-10-21 19:04:03,723 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:03,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:03,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1493471141, now seen corresponding path program 56 times [2021-10-21 19:04:03,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:03,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089562721] [2021-10-21 19:04:03,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:03,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:04,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:04,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089562721] [2021-10-21 19:04:04,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089562721] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:04,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807644199] [2021-10-21 19:04:04,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:04:04,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:04,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:04,956 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:04,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-10-21 19:04:07,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:04:07,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:04:07,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 58 conjunts are in the unsatisfiable core [2021-10-21 19:04:07,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:07,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807644199] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:07,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:07,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 58 [2021-10-21 19:04:07,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815607392] [2021-10-21 19:04:07,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-10-21 19:04:07,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:07,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-10-21 19:04:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-10-21 19:04:07,983 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:08,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:08,123 INFO L93 Difference]: Finished difference Result 293 states and 293 transitions. [2021-10-21 19:04:08,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-21 19:04:08,124 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 285 [2021-10-21 19:04:08,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:08,126 INFO L225 Difference]: With dead ends: 293 [2021-10-21 19:04:08,127 INFO L226 Difference]: Without dead ends: 292 [2021-10-21 19:04:08,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1079.0ms TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-10-21 19:04:08,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-10-21 19:04:08,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 291. [2021-10-21 19:04:08,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 290 states have (on average 1.0034482758620689) internal successors, (291), 290 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:08,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 291 transitions. [2021-10-21 19:04:08,134 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 291 transitions. Word has length 285 [2021-10-21 19:04:08,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:08,134 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 291 transitions. [2021-10-21 19:04:08,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:08,135 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 291 transitions. [2021-10-21 19:04:08,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-10-21 19:04:08,137 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:08,137 INFO L512 BasicCegarLoop]: trace histogram [58, 57, 57, 57, 57, 1, 1, 1, 1] [2021-10-21 19:04:08,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2021-10-21 19:04:08,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:08,365 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:08,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:08,366 INFO L82 PathProgramCache]: Analyzing trace with hash -890930575, now seen corresponding path program 57 times [2021-10-21 19:04:08,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:08,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757188871] [2021-10-21 19:04:08,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:08,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 8094 backedges. 0 proven. 8094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:09,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:09,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757188871] [2021-10-21 19:04:09,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757188871] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:09,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836784653] [2021-10-21 19:04:09,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:04:09,602 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:09,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:09,603 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:09,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-10-21 19:04:12,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-10-21 19:04:12,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:04:12,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 59 conjunts are in the unsatisfiable core [2021-10-21 19:04:12,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:12,930 INFO L134 CoverageAnalysis]: Checked inductivity of 8094 backedges. 0 proven. 8094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:12,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836784653] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:12,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:12,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 59 [2021-10-21 19:04:12,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779890986] [2021-10-21 19:04:12,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-10-21 19:04:12,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:12,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-10-21 19:04:12,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-10-21 19:04:12,932 INFO L87 Difference]: Start difference. First operand 291 states and 291 transitions. Second operand has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:13,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:13,060 INFO L93 Difference]: Finished difference Result 298 states and 298 transitions. [2021-10-21 19:04:13,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-10-21 19:04:13,061 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290 [2021-10-21 19:04:13,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:13,063 INFO L225 Difference]: With dead ends: 298 [2021-10-21 19:04:13,063 INFO L226 Difference]: Without dead ends: 297 [2021-10-21 19:04:13,063 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1084.5ms TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-10-21 19:04:13,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-10-21 19:04:13,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 296. [2021-10-21 19:04:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.0033898305084745) internal successors, (296), 295 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 296 transitions. [2021-10-21 19:04:13,070 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 296 transitions. Word has length 290 [2021-10-21 19:04:13,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:13,070 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 296 transitions. [2021-10-21 19:04:13,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:13,071 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 296 transitions. [2021-10-21 19:04:13,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-10-21 19:04:13,073 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:13,073 INFO L512 BasicCegarLoop]: trace histogram [59, 58, 58, 58, 58, 1, 1, 1, 1] [2021-10-21 19:04:13,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2021-10-21 19:04:13,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:13,301 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:13,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:13,302 INFO L82 PathProgramCache]: Analyzing trace with hash 790851365, now seen corresponding path program 58 times [2021-10-21 19:04:13,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:13,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975647192] [2021-10-21 19:04:13,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:13,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:14,859 INFO L134 CoverageAnalysis]: Checked inductivity of 8381 backedges. 0 proven. 8381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:14,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:14,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975647192] [2021-10-21 19:04:14,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975647192] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:14,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406339869] [2021-10-21 19:04:14,860 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:04:14,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:14,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:14,862 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:14,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-10-21 19:04:17,478 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:04:17,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:04:17,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 60 conjunts are in the unsatisfiable core [2021-10-21 19:04:17,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:18,148 INFO L134 CoverageAnalysis]: Checked inductivity of 8381 backedges. 0 proven. 8381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:18,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406339869] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:18,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:18,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 60 [2021-10-21 19:04:18,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193055577] [2021-10-21 19:04:18,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-10-21 19:04:18,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:18,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-10-21 19:04:18,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-10-21 19:04:18,150 INFO L87 Difference]: Start difference. First operand 296 states and 296 transitions. Second operand has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:18,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:18,285 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2021-10-21 19:04:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-21 19:04:18,286 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2021-10-21 19:04:18,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:18,287 INFO L225 Difference]: With dead ends: 303 [2021-10-21 19:04:18,287 INFO L226 Difference]: Without dead ends: 302 [2021-10-21 19:04:18,287 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1361.4ms TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-10-21 19:04:18,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-10-21 19:04:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 301. [2021-10-21 19:04:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.0033333333333334) internal successors, (301), 300 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:18,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 301 transitions. [2021-10-21 19:04:18,291 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 301 transitions. Word has length 295 [2021-10-21 19:04:18,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:18,292 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 301 transitions. [2021-10-21 19:04:18,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:18,292 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 301 transitions. [2021-10-21 19:04:18,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-10-21 19:04:18,293 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:18,293 INFO L512 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 1, 1, 1, 1] [2021-10-21 19:04:18,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2021-10-21 19:04:18,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-10-21 19:04:18,496 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:18,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:18,496 INFO L82 PathProgramCache]: Analyzing trace with hash 2057718513, now seen corresponding path program 59 times [2021-10-21 19:04:18,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:18,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725010048] [2021-10-21 19:04:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:18,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 8673 backedges. 0 proven. 8673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:19,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:19,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725010048] [2021-10-21 19:04:19,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725010048] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:19,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91465878] [2021-10-21 19:04:19,859 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:04:19,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:19,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:19,860 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:19,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-21 19:04:22,624 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-10-21 19:04:22,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:04:22,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 61 conjunts are in the unsatisfiable core [2021-10-21 19:04:22,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:23,309 INFO L134 CoverageAnalysis]: Checked inductivity of 8673 backedges. 0 proven. 8673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:23,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91465878] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:23,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:23,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 61 [2021-10-21 19:04:23,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425171258] [2021-10-21 19:04:23,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-10-21 19:04:23,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:23,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-10-21 19:04:23,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-10-21 19:04:23,312 INFO L87 Difference]: Start difference. First operand 301 states and 301 transitions. Second operand has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:23,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:23,443 INFO L93 Difference]: Finished difference Result 308 states and 308 transitions. [2021-10-21 19:04:23,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-21 19:04:23,444 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2021-10-21 19:04:23,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:23,446 INFO L225 Difference]: With dead ends: 308 [2021-10-21 19:04:23,446 INFO L226 Difference]: Without dead ends: 307 [2021-10-21 19:04:23,446 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1195.8ms TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-10-21 19:04:23,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-10-21 19:04:23,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 306. [2021-10-21 19:04:23,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.0032786885245901) internal successors, (306), 305 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 306 transitions. [2021-10-21 19:04:23,452 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 306 transitions. Word has length 300 [2021-10-21 19:04:23,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:23,453 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 306 transitions. [2021-10-21 19:04:23,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:23,453 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 306 transitions. [2021-10-21 19:04:23,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-10-21 19:04:23,455 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:23,455 INFO L512 BasicCegarLoop]: trace histogram [61, 60, 60, 60, 60, 1, 1, 1, 1] [2021-10-21 19:04:23,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2021-10-21 19:04:23,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:23,671 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:23,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:23,672 INFO L82 PathProgramCache]: Analyzing trace with hash 567340709, now seen corresponding path program 60 times [2021-10-21 19:04:23,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:23,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374789341] [2021-10-21 19:04:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:23,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:25,102 INFO L134 CoverageAnalysis]: Checked inductivity of 8970 backedges. 0 proven. 8970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:25,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:25,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374789341] [2021-10-21 19:04:25,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374789341] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:25,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283708987] [2021-10-21 19:04:25,103 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:04:25,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:25,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:25,104 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:25,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-21 19:04:27,978 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-10-21 19:04:27,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:04:27,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 62 conjunts are in the unsatisfiable core [2021-10-21 19:04:27,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 8970 backedges. 0 proven. 8970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:28,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283708987] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:28,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:28,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 62 [2021-10-21 19:04:28,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760903435] [2021-10-21 19:04:28,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-10-21 19:04:28,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:28,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-10-21 19:04:28,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-10-21 19:04:28,817 INFO L87 Difference]: Start difference. First operand 306 states and 306 transitions. Second operand has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:28,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:28,968 INFO L93 Difference]: Finished difference Result 313 states and 313 transitions. [2021-10-21 19:04:28,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-10-21 19:04:28,968 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2021-10-21 19:04:28,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:28,970 INFO L225 Difference]: With dead ends: 313 [2021-10-21 19:04:28,970 INFO L226 Difference]: Without dead ends: 312 [2021-10-21 19:04:28,971 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1245.7ms TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-10-21 19:04:28,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-10-21 19:04:28,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 311. [2021-10-21 19:04:28,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.0032258064516129) internal successors, (311), 310 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:28,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 311 transitions. [2021-10-21 19:04:28,977 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 311 transitions. Word has length 305 [2021-10-21 19:04:28,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:28,977 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 311 transitions. [2021-10-21 19:04:28,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:28,977 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 311 transitions. [2021-10-21 19:04:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-10-21 19:04:28,979 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:28,980 INFO L512 BasicCegarLoop]: trace histogram [62, 61, 61, 61, 61, 1, 1, 1, 1] [2021-10-21 19:04:29,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-10-21 19:04:29,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-10-21 19:04:29,205 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:29,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:29,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1107526799, now seen corresponding path program 61 times [2021-10-21 19:04:29,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:29,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288519479] [2021-10-21 19:04:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:29,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:30,616 INFO L134 CoverageAnalysis]: Checked inductivity of 9272 backedges. 0 proven. 9272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:30,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:30,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288519479] [2021-10-21 19:04:30,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288519479] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:30,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735265031] [2021-10-21 19:04:30,617 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:04:30,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:30,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:30,620 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:30,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-10-21 19:04:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:33,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 63 conjunts are in the unsatisfiable core [2021-10-21 19:04:33,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:34,375 INFO L134 CoverageAnalysis]: Checked inductivity of 9272 backedges. 0 proven. 9272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:34,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735265031] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:34,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:34,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 63 [2021-10-21 19:04:34,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958999663] [2021-10-21 19:04:34,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-10-21 19:04:34,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:34,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-10-21 19:04:34,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-10-21 19:04:34,377 INFO L87 Difference]: Start difference. First operand 311 states and 311 transitions. Second operand has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:34,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:34,517 INFO L93 Difference]: Finished difference Result 318 states and 318 transitions. [2021-10-21 19:04:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-10-21 19:04:34,518 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-10-21 19:04:34,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:34,519 INFO L225 Difference]: With dead ends: 318 [2021-10-21 19:04:34,519 INFO L226 Difference]: Without dead ends: 317 [2021-10-21 19:04:34,520 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1242.9ms TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-10-21 19:04:34,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-21 19:04:34,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 316. [2021-10-21 19:04:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 1.0031746031746032) internal successors, (316), 315 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 316 transitions. [2021-10-21 19:04:34,526 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 316 transitions. Word has length 310 [2021-10-21 19:04:34,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:34,527 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 316 transitions. [2021-10-21 19:04:34,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 316 transitions. [2021-10-21 19:04:34,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-10-21 19:04:34,529 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:34,529 INFO L512 BasicCegarLoop]: trace histogram [63, 62, 62, 62, 62, 1, 1, 1, 1] [2021-10-21 19:04:34,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2021-10-21 19:04:34,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-10-21 19:04:34,737 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:34,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:34,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1195707941, now seen corresponding path program 62 times [2021-10-21 19:04:34,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:34,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391016849] [2021-10-21 19:04:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:34,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 9579 backedges. 0 proven. 9579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:36,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:36,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391016849] [2021-10-21 19:04:36,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391016849] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:36,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033823475] [2021-10-21 19:04:36,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:04:36,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:36,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:36,197 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:36,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-10-21 19:04:39,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:04:39,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:04:39,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 64 conjunts are in the unsatisfiable core [2021-10-21 19:04:39,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:39,887 INFO L134 CoverageAnalysis]: Checked inductivity of 9579 backedges. 0 proven. 9579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:39,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033823475] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:39,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:39,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 64 [2021-10-21 19:04:39,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966252858] [2021-10-21 19:04:39,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-10-21 19:04:39,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:39,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-10-21 19:04:39,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-10-21 19:04:39,890 INFO L87 Difference]: Start difference. First operand 316 states and 316 transitions. Second operand has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:40,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:40,097 INFO L93 Difference]: Finished difference Result 323 states and 323 transitions. [2021-10-21 19:04:40,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-10-21 19:04:40,098 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 315 [2021-10-21 19:04:40,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:40,100 INFO L225 Difference]: With dead ends: 323 [2021-10-21 19:04:40,100 INFO L226 Difference]: Without dead ends: 322 [2021-10-21 19:04:40,101 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1278.1ms TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-10-21 19:04:40,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-10-21 19:04:40,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 321. [2021-10-21 19:04:40,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.003125) internal successors, (321), 320 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:40,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2021-10-21 19:04:40,108 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 315 [2021-10-21 19:04:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:40,108 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 321 transitions. [2021-10-21 19:04:40,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 321 transitions. [2021-10-21 19:04:40,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-10-21 19:04:40,110 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:40,111 INFO L512 BasicCegarLoop]: trace histogram [64, 63, 63, 63, 63, 1, 1, 1, 1] [2021-10-21 19:04:40,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-10-21 19:04:40,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:40,330 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:40,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:40,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1582298127, now seen corresponding path program 63 times [2021-10-21 19:04:40,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:40,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773053329] [2021-10-21 19:04:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:40,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:41,896 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:41,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:41,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773053329] [2021-10-21 19:04:41,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773053329] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:41,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104338110] [2021-10-21 19:04:41,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:04:41,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:41,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:41,897 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:41,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-10-21 19:04:45,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-10-21 19:04:45,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:04:45,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 65 conjunts are in the unsatisfiable core [2021-10-21 19:04:45,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:45,765 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:45,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104338110] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:45,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:45,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 65 [2021-10-21 19:04:45,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520404469] [2021-10-21 19:04:45,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-10-21 19:04:45,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:45,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-10-21 19:04:45,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-10-21 19:04:45,767 INFO L87 Difference]: Start difference. First operand 321 states and 321 transitions. Second operand has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:45,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:45,914 INFO L93 Difference]: Finished difference Result 328 states and 328 transitions. [2021-10-21 19:04:45,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-10-21 19:04:45,914 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 320 [2021-10-21 19:04:45,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:45,916 INFO L225 Difference]: With dead ends: 328 [2021-10-21 19:04:45,916 INFO L226 Difference]: Without dead ends: 327 [2021-10-21 19:04:45,916 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1372.7ms TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-10-21 19:04:45,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-10-21 19:04:45,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 326. [2021-10-21 19:04:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 1.003076923076923) internal successors, (326), 325 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 326 transitions. [2021-10-21 19:04:45,922 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 326 transitions. Word has length 320 [2021-10-21 19:04:45,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:45,923 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 326 transitions. [2021-10-21 19:04:45,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:45,923 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 326 transitions. [2021-10-21 19:04:45,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-10-21 19:04:45,925 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:45,925 INFO L512 BasicCegarLoop]: trace histogram [65, 64, 64, 64, 64, 1, 1, 1, 1] [2021-10-21 19:04:45,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2021-10-21 19:04:46,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:46,141 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:46,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:46,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1337445797, now seen corresponding path program 64 times [2021-10-21 19:04:46,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:46,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358562047] [2021-10-21 19:04:46,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:46,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:47,783 INFO L134 CoverageAnalysis]: Checked inductivity of 10208 backedges. 0 proven. 10208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:47,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:47,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358562047] [2021-10-21 19:04:47,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358562047] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:47,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544620816] [2021-10-21 19:04:47,784 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:04:47,784 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:47,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:47,785 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:47,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-10-21 19:04:50,904 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:04:50,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:04:50,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 66 conjunts are in the unsatisfiable core [2021-10-21 19:04:50,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 10208 backedges. 0 proven. 10208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:51,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544620816] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:51,644 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:51,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 66 [2021-10-21 19:04:51,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729123868] [2021-10-21 19:04:51,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-10-21 19:04:51,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:51,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-10-21 19:04:51,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-10-21 19:04:51,646 INFO L87 Difference]: Start difference. First operand 326 states and 326 transitions. Second operand has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:51,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:51,797 INFO L93 Difference]: Finished difference Result 333 states and 333 transitions. [2021-10-21 19:04:51,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-10-21 19:04:51,797 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2021-10-21 19:04:51,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:51,799 INFO L225 Difference]: With dead ends: 333 [2021-10-21 19:04:51,799 INFO L226 Difference]: Without dead ends: 332 [2021-10-21 19:04:51,799 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1408.7ms TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-10-21 19:04:51,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-10-21 19:04:51,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 331. [2021-10-21 19:04:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 330 states have (on average 1.003030303030303) internal successors, (331), 330 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:51,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 331 transitions. [2021-10-21 19:04:51,804 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 331 transitions. Word has length 325 [2021-10-21 19:04:51,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:51,804 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 331 transitions. [2021-10-21 19:04:51,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:51,805 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 331 transitions. [2021-10-21 19:04:51,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-10-21 19:04:51,807 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:51,807 INFO L512 BasicCegarLoop]: trace histogram [66, 65, 65, 65, 65, 1, 1, 1, 1] [2021-10-21 19:04:51,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-10-21 19:04:52,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-10-21 19:04:52,009 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:52,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:52,010 INFO L82 PathProgramCache]: Analyzing trace with hash -662111119, now seen corresponding path program 65 times [2021-10-21 19:04:52,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:52,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627343264] [2021-10-21 19:04:52,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:52,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 10530 backedges. 0 proven. 10530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:53,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:53,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627343264] [2021-10-21 19:04:53,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627343264] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:53,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990759076] [2021-10-21 19:04:53,569 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:04:53,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:53,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:53,570 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:53,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-10-21 19:04:56,854 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2021-10-21 19:04:56,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:04:56,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 67 conjunts are in the unsatisfiable core [2021-10-21 19:04:56,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:04:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 10530 backedges. 0 proven. 10530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:57,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990759076] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:57,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:04:57,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 67 [2021-10-21 19:04:57,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217621231] [2021-10-21 19:04:57,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2021-10-21 19:04:57,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:04:57,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-10-21 19:04:57,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2021-10-21 19:04:57,688 INFO L87 Difference]: Start difference. First operand 331 states and 331 transitions. Second operand has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:57,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:04:57,886 INFO L93 Difference]: Finished difference Result 338 states and 338 transitions. [2021-10-21 19:04:57,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-10-21 19:04:57,887 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2021-10-21 19:04:57,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:04:57,888 INFO L225 Difference]: With dead ends: 338 [2021-10-21 19:04:57,888 INFO L226 Difference]: Without dead ends: 337 [2021-10-21 19:04:57,888 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1381.2ms TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2021-10-21 19:04:57,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-10-21 19:04:57,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 336. [2021-10-21 19:04:57,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 335 states have (on average 1.0029850746268656) internal successors, (336), 335 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:57,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 336 transitions. [2021-10-21 19:04:57,894 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 336 transitions. Word has length 330 [2021-10-21 19:04:57,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:04:57,895 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 336 transitions. [2021-10-21 19:04:57,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:04:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 336 transitions. [2021-10-21 19:04:57,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-10-21 19:04:57,897 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:04:57,898 INFO L512 BasicCegarLoop]: trace histogram [67, 66, 66, 66, 66, 1, 1, 1, 1] [2021-10-21 19:04:57,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2021-10-21 19:04:58,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-10-21 19:04:58,113 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:04:58,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:04:58,114 INFO L82 PathProgramCache]: Analyzing trace with hash 90254629, now seen corresponding path program 66 times [2021-10-21 19:04:58,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:04:58,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736160030] [2021-10-21 19:04:58,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:04:58,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:04:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:04:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 10857 backedges. 0 proven. 10857 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:04:59,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:04:59,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736160030] [2021-10-21 19:04:59,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736160030] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:04:59,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268520697] [2021-10-21 19:04:59,704 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:04:59,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:04:59,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:04:59,705 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:04:59,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-10-21 19:05:03,104 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2021-10-21 19:05:03,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:03,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 68 conjunts are in the unsatisfiable core [2021-10-21 19:05:03,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:03,916 INFO L134 CoverageAnalysis]: Checked inductivity of 10857 backedges. 0 proven. 10857 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:03,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268520697] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:03,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:03,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 68 [2021-10-21 19:05:03,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848543788] [2021-10-21 19:05:03,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-10-21 19:05:03,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:03,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-10-21 19:05:03,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2021-10-21 19:05:03,919 INFO L87 Difference]: Start difference. First operand 336 states and 336 transitions. Second operand has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:04,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:04,155 INFO L93 Difference]: Finished difference Result 343 states and 343 transitions. [2021-10-21 19:05:04,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-10-21 19:05:04,156 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 335 [2021-10-21 19:05:04,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:04,158 INFO L225 Difference]: With dead ends: 343 [2021-10-21 19:05:04,158 INFO L226 Difference]: Without dead ends: 342 [2021-10-21 19:05:04,159 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1427.4ms TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2021-10-21 19:05:04,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-10-21 19:05:04,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 341. [2021-10-21 19:05:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.0029411764705882) internal successors, (341), 340 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:04,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 341 transitions. [2021-10-21 19:05:04,166 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 341 transitions. Word has length 335 [2021-10-21 19:05:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:04,167 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 341 transitions. [2021-10-21 19:05:04,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 341 transitions. [2021-10-21 19:05:04,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2021-10-21 19:05:04,169 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:04,170 INFO L512 BasicCegarLoop]: trace histogram [68, 67, 67, 67, 67, 1, 1, 1, 1] [2021-10-21 19:05:04,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:04,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:04,389 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:05:04,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:04,390 INFO L82 PathProgramCache]: Analyzing trace with hash 995052785, now seen corresponding path program 67 times [2021-10-21 19:05:04,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:04,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347168170] [2021-10-21 19:05:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:04,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 11189 backedges. 0 proven. 11189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:06,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:06,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347168170] [2021-10-21 19:05:06,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347168170] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:06,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010192716] [2021-10-21 19:05:06,153 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:05:06,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:06,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:06,154 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:06,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-10-21 19:05:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:09,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 69 conjunts are in the unsatisfiable core [2021-10-21 19:05:09,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 11189 backedges. 0 proven. 11189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:10,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010192716] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:10,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:10,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 69 [2021-10-21 19:05:10,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983824781] [2021-10-21 19:05:10,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-10-21 19:05:10,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:10,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-10-21 19:05:10,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-10-21 19:05:10,415 INFO L87 Difference]: Start difference. First operand 341 states and 341 transitions. Second operand has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:10,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:10,578 INFO L93 Difference]: Finished difference Result 348 states and 348 transitions. [2021-10-21 19:05:10,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-10-21 19:05:10,578 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 340 [2021-10-21 19:05:10,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:10,580 INFO L225 Difference]: With dead ends: 348 [2021-10-21 19:05:10,580 INFO L226 Difference]: Without dead ends: 347 [2021-10-21 19:05:10,580 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1536.7ms TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-10-21 19:05:10,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-10-21 19:05:10,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 346. [2021-10-21 19:05:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.0028985507246377) internal successors, (346), 345 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:10,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 346 transitions. [2021-10-21 19:05:10,585 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 346 transitions. Word has length 340 [2021-10-21 19:05:10,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:10,585 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 346 transitions. [2021-10-21 19:05:10,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:10,585 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 346 transitions. [2021-10-21 19:05:10,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-10-21 19:05:10,586 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:10,587 INFO L512 BasicCegarLoop]: trace histogram [69, 68, 68, 68, 68, 1, 1, 1, 1] [2021-10-21 19:05:10,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2021-10-21 19:05:10,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2021-10-21 19:05:10,787 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:05:10,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:10,788 INFO L82 PathProgramCache]: Analyzing trace with hash -864473947, now seen corresponding path program 68 times [2021-10-21 19:05:10,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:10,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47965251] [2021-10-21 19:05:10,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:10,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 11526 backedges. 0 proven. 11526 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:12,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:12,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47965251] [2021-10-21 19:05:12,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47965251] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:12,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452230400] [2021-10-21 19:05:12,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:05:12,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:12,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:12,536 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:12,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-10-21 19:05:16,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:05:16,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:16,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 70 conjunts are in the unsatisfiable core [2021-10-21 19:05:16,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:16,875 INFO L134 CoverageAnalysis]: Checked inductivity of 11526 backedges. 0 proven. 11526 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:16,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452230400] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:16,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:16,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 70 [2021-10-21 19:05:16,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076612293] [2021-10-21 19:05:16,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2021-10-21 19:05:16,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:16,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-10-21 19:05:16,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2021-10-21 19:05:16,877 INFO L87 Difference]: Start difference. First operand 346 states and 346 transitions. Second operand has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:17,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:17,035 INFO L93 Difference]: Finished difference Result 353 states and 353 transitions. [2021-10-21 19:05:17,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-21 19:05:17,036 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 345 [2021-10-21 19:05:17,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:17,037 INFO L225 Difference]: With dead ends: 353 [2021-10-21 19:05:17,037 INFO L226 Difference]: Without dead ends: 352 [2021-10-21 19:05:17,038 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1508.8ms TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2021-10-21 19:05:17,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-10-21 19:05:17,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 351. [2021-10-21 19:05:17,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.002857142857143) internal successors, (351), 350 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:17,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 351 transitions. [2021-10-21 19:05:17,042 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 351 transitions. Word has length 345 [2021-10-21 19:05:17,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:17,042 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 351 transitions. [2021-10-21 19:05:17,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:17,043 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 351 transitions. [2021-10-21 19:05:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-10-21 19:05:17,044 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:17,045 INFO L512 BasicCegarLoop]: trace histogram [70, 69, 69, 69, 69, 1, 1, 1, 1] [2021-10-21 19:05:17,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2021-10-21 19:05:17,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:17,261 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:05:17,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:17,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1221262705, now seen corresponding path program 69 times [2021-10-21 19:05:17,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:17,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151956442] [2021-10-21 19:05:17,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:17,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 11868 backedges. 0 proven. 11868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:19,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:19,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151956442] [2021-10-21 19:05:19,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151956442] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:19,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687988743] [2021-10-21 19:05:19,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:05:19,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:19,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:19,197 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:19,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-10-21 19:05:23,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 70 check-sat command(s) [2021-10-21 19:05:23,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:23,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 71 conjunts are in the unsatisfiable core [2021-10-21 19:05:23,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 11868 backedges. 0 proven. 11868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:23,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687988743] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:23,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:23,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 71 [2021-10-21 19:05:23,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825861106] [2021-10-21 19:05:23,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2021-10-21 19:05:23,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:23,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-10-21 19:05:23,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2021-10-21 19:05:23,867 INFO L87 Difference]: Start difference. First operand 351 states and 351 transitions. Second operand has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:24,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:24,049 INFO L93 Difference]: Finished difference Result 358 states and 358 transitions. [2021-10-21 19:05:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-21 19:05:24,050 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 350 [2021-10-21 19:05:24,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:24,051 INFO L225 Difference]: With dead ends: 358 [2021-10-21 19:05:24,051 INFO L226 Difference]: Without dead ends: 357 [2021-10-21 19:05:24,052 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1643.5ms TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2021-10-21 19:05:24,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-10-21 19:05:24,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 356. [2021-10-21 19:05:24,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 355 states have (on average 1.0028169014084507) internal successors, (356), 355 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:24,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 356 transitions. [2021-10-21 19:05:24,056 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 356 transitions. Word has length 350 [2021-10-21 19:05:24,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:24,057 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 356 transitions. [2021-10-21 19:05:24,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:24,057 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 356 transitions. [2021-10-21 19:05:24,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-10-21 19:05:24,058 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:24,058 INFO L512 BasicCegarLoop]: trace histogram [71, 70, 70, 70, 70, 1, 1, 1, 1] [2021-10-21 19:05:24,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2021-10-21 19:05:24,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:24,259 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:05:24,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:24,259 INFO L82 PathProgramCache]: Analyzing trace with hash 590859301, now seen corresponding path program 70 times [2021-10-21 19:05:24,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:24,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41152051] [2021-10-21 19:05:24,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:24,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:26,092 INFO L134 CoverageAnalysis]: Checked inductivity of 12215 backedges. 0 proven. 12215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:26,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:26,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41152051] [2021-10-21 19:05:26,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41152051] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:26,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651148638] [2021-10-21 19:05:26,093 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:05:26,093 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:26,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:26,096 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:26,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-10-21 19:05:29,858 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:05:29,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:29,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 72 conjunts are in the unsatisfiable core [2021-10-21 19:05:29,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 12215 backedges. 0 proven. 12215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:30,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651148638] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:30,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:30,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 72 [2021-10-21 19:05:30,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639327519] [2021-10-21 19:05:30,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-10-21 19:05:30,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:30,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-10-21 19:05:30,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2021-10-21 19:05:30,682 INFO L87 Difference]: Start difference. First operand 356 states and 356 transitions. Second operand has 73 states, 72 states have (on average 4.930555555555555) internal successors, (355), 73 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:30,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:30,888 INFO L93 Difference]: Finished difference Result 363 states and 363 transitions. [2021-10-21 19:05:30,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-21 19:05:30,888 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 72 states have (on average 4.930555555555555) internal successors, (355), 73 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 355 [2021-10-21 19:05:30,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:30,890 INFO L225 Difference]: With dead ends: 363 [2021-10-21 19:05:30,890 INFO L226 Difference]: Without dead ends: 362 [2021-10-21 19:05:30,890 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1595.9ms TimeCoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2021-10-21 19:05:30,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-10-21 19:05:30,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 361. [2021-10-21 19:05:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.0027777777777778) internal successors, (361), 360 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 361 transitions. [2021-10-21 19:05:30,895 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 361 transitions. Word has length 355 [2021-10-21 19:05:30,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:30,895 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 361 transitions. [2021-10-21 19:05:30,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 72 states have (on average 4.930555555555555) internal successors, (355), 73 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:30,895 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 361 transitions. [2021-10-21 19:05:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-10-21 19:05:30,897 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:30,897 INFO L512 BasicCegarLoop]: trace histogram [72, 71, 71, 71, 71, 1, 1, 1, 1] [2021-10-21 19:05:30,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2021-10-21 19:05:31,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-10-21 19:05:31,098 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:05:31,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:31,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1513878031, now seen corresponding path program 71 times [2021-10-21 19:05:31,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:31,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545726486] [2021-10-21 19:05:31,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:31,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 12567 backedges. 0 proven. 12567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:33,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:33,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545726486] [2021-10-21 19:05:33,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545726486] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:33,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351399031] [2021-10-21 19:05:33,026 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:05:33,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:33,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:33,027 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:33,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-10-21 19:05:36,944 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 72 check-sat command(s) [2021-10-21 19:05:36,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:36,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 73 conjunts are in the unsatisfiable core [2021-10-21 19:05:36,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:37,838 INFO L134 CoverageAnalysis]: Checked inductivity of 12567 backedges. 0 proven. 12567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:37,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351399031] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:37,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:37,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 73 [2021-10-21 19:05:37,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472484691] [2021-10-21 19:05:37,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2021-10-21 19:05:37,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:37,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-10-21 19:05:37,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2021-10-21 19:05:37,841 INFO L87 Difference]: Start difference. First operand 361 states and 361 transitions. Second operand has 74 states, 73 states have (on average 4.931506849315069) internal successors, (360), 74 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:38,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:38,057 INFO L93 Difference]: Finished difference Result 368 states and 368 transitions. [2021-10-21 19:05:38,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-10-21 19:05:38,057 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 73 states have (on average 4.931506849315069) internal successors, (360), 74 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-10-21 19:05:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:38,059 INFO L225 Difference]: With dead ends: 368 [2021-10-21 19:05:38,059 INFO L226 Difference]: Without dead ends: 367 [2021-10-21 19:05:38,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1695.1ms TimeCoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2021-10-21 19:05:38,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2021-10-21 19:05:38,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 366. [2021-10-21 19:05:38,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 1.0027397260273974) internal successors, (366), 365 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 366 transitions. [2021-10-21 19:05:38,066 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 366 transitions. Word has length 360 [2021-10-21 19:05:38,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:38,066 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 366 transitions. [2021-10-21 19:05:38,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 73 states have (on average 4.931506849315069) internal successors, (360), 74 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 366 transitions. [2021-10-21 19:05:38,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-10-21 19:05:38,070 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:38,070 INFO L512 BasicCegarLoop]: trace histogram [73, 72, 72, 72, 72, 1, 1, 1, 1] [2021-10-21 19:05:38,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2021-10-21 19:05:38,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:38,272 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:05:38,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:38,273 INFO L82 PathProgramCache]: Analyzing trace with hash 567610277, now seen corresponding path program 72 times [2021-10-21 19:05:38,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:38,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453712538] [2021-10-21 19:05:38,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:38,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:40,313 INFO L134 CoverageAnalysis]: Checked inductivity of 12924 backedges. 0 proven. 12924 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:40,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:40,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453712538] [2021-10-21 19:05:40,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453712538] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:40,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775587041] [2021-10-21 19:05:40,314 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:05:40,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:40,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:40,314 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:40,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-10-21 19:05:44,378 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 73 check-sat command(s) [2021-10-21 19:05:44,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:44,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 74 conjunts are in the unsatisfiable core [2021-10-21 19:05:44,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:45,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12924 backedges. 0 proven. 12924 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:45,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775587041] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:45,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:45,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 74 [2021-10-21 19:05:45,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760574721] [2021-10-21 19:05:45,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-10-21 19:05:45,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:45,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-10-21 19:05:45,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2021-10-21 19:05:45,211 INFO L87 Difference]: Start difference. First operand 366 states and 366 transitions. Second operand has 75 states, 74 states have (on average 4.9324324324324325) internal successors, (365), 75 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:45,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:45,463 INFO L93 Difference]: Finished difference Result 373 states and 373 transitions. [2021-10-21 19:05:45,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-10-21 19:05:45,463 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 74 states have (on average 4.9324324324324325) internal successors, (365), 75 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 365 [2021-10-21 19:05:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:45,466 INFO L225 Difference]: With dead ends: 373 [2021-10-21 19:05:45,466 INFO L226 Difference]: Without dead ends: 372 [2021-10-21 19:05:45,467 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1734.5ms TimeCoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2021-10-21 19:05:45,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-10-21 19:05:45,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2021-10-21 19:05:45,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.0027027027027027) internal successors, (371), 370 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:45,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 371 transitions. [2021-10-21 19:05:45,474 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 371 transitions. Word has length 365 [2021-10-21 19:05:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:45,474 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 371 transitions. [2021-10-21 19:05:45,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 74 states have (on average 4.9324324324324325) internal successors, (365), 75 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 371 transitions. [2021-10-21 19:05:45,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-10-21 19:05:45,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:45,477 INFO L512 BasicCegarLoop]: trace histogram [74, 73, 73, 73, 73, 1, 1, 1, 1] [2021-10-21 19:05:45,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2021-10-21 19:05:45,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:45,701 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:05:45,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:45,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1660780943, now seen corresponding path program 73 times [2021-10-21 19:05:45,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:45,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334063772] [2021-10-21 19:05:45,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:45,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:47,759 INFO L134 CoverageAnalysis]: Checked inductivity of 13286 backedges. 0 proven. 13286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:47,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:47,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334063772] [2021-10-21 19:05:47,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334063772] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:47,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372606404] [2021-10-21 19:05:47,760 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:05:47,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:47,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:47,761 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:47,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-21 19:05:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:51,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 75 conjunts are in the unsatisfiable core [2021-10-21 19:05:51,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 13286 backedges. 0 proven. 13286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:52,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372606404] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:52,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:05:52,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 75 [2021-10-21 19:05:52,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500894867] [2021-10-21 19:05:52,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2021-10-21 19:05:52,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:52,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-10-21 19:05:52,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2021-10-21 19:05:52,714 INFO L87 Difference]: Start difference. First operand 371 states and 371 transitions. Second operand has 76 states, 75 states have (on average 4.933333333333334) internal successors, (370), 76 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:52,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:52,912 INFO L93 Difference]: Finished difference Result 378 states and 378 transitions. [2021-10-21 19:05:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-21 19:05:52,912 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 4.933333333333334) internal successors, (370), 76 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 370 [2021-10-21 19:05:52,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:05:52,914 INFO L225 Difference]: With dead ends: 378 [2021-10-21 19:05:52,914 INFO L226 Difference]: Without dead ends: 377 [2021-10-21 19:05:52,915 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1818.8ms TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2021-10-21 19:05:52,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-10-21 19:05:52,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 376. [2021-10-21 19:05:52,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.0026666666666666) internal successors, (376), 375 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:52,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 376 transitions. [2021-10-21 19:05:52,941 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 376 transitions. Word has length 370 [2021-10-21 19:05:52,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:05:52,941 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 376 transitions. [2021-10-21 19:05:52,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 75 states have (on average 4.933333333333334) internal successors, (370), 76 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:52,941 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 376 transitions. [2021-10-21 19:05:52,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-10-21 19:05:52,943 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:05:52,943 INFO L512 BasicCegarLoop]: trace histogram [75, 74, 74, 74, 74, 1, 1, 1, 1] [2021-10-21 19:05:52,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-10-21 19:05:53,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2021-10-21 19:05:53,143 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:05:53,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:53,144 INFO L82 PathProgramCache]: Analyzing trace with hash -91690203, now seen corresponding path program 74 times [2021-10-21 19:05:53,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:53,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553713687] [2021-10-21 19:05:53,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:53,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:55,185 INFO L134 CoverageAnalysis]: Checked inductivity of 13653 backedges. 0 proven. 13653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:55,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:55,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553713687] [2021-10-21 19:05:55,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553713687] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:05:55,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674488576] [2021-10-21 19:05:55,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:05:55,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:05:55,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:55,186 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:05:55,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-10-21 19:05:59,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:05:59,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:05:59,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 76 conjunts are in the unsatisfiable core [2021-10-21 19:05:59,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 13653 backedges. 0 proven. 13653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:00,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674488576] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:00,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:00,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 76 [2021-10-21 19:06:00,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041059365] [2021-10-21 19:06:00,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2021-10-21 19:06:00,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:00,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-10-21 19:06:00,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2021-10-21 19:06:00,327 INFO L87 Difference]: Start difference. First operand 376 states and 376 transitions. Second operand has 77 states, 76 states have (on average 4.934210526315789) internal successors, (375), 77 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:00,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:00,506 INFO L93 Difference]: Finished difference Result 383 states and 383 transitions. [2021-10-21 19:06:00,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-10-21 19:06:00,507 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 76 states have (on average 4.934210526315789) internal successors, (375), 77 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 375 [2021-10-21 19:06:00,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:00,508 INFO L225 Difference]: With dead ends: 383 [2021-10-21 19:06:00,508 INFO L226 Difference]: Without dead ends: 382 [2021-10-21 19:06:00,509 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1854.1ms TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2021-10-21 19:06:00,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-10-21 19:06:00,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2021-10-21 19:06:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.0026315789473683) internal successors, (381), 380 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:00,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 381 transitions. [2021-10-21 19:06:00,514 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 381 transitions. Word has length 375 [2021-10-21 19:06:00,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:00,514 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 381 transitions. [2021-10-21 19:06:00,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 76 states have (on average 4.934210526315789) internal successors, (375), 77 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:00,515 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 381 transitions. [2021-10-21 19:06:00,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-10-21 19:06:00,517 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:00,517 INFO L512 BasicCegarLoop]: trace histogram [76, 75, 75, 75, 75, 1, 1, 1, 1] [2021-10-21 19:06:00,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2021-10-21 19:06:00,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-10-21 19:06:00,720 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:06:00,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:00,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1622257935, now seen corresponding path program 75 times [2021-10-21 19:06:00,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:00,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828491487] [2021-10-21 19:06:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:00,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:02,891 INFO L134 CoverageAnalysis]: Checked inductivity of 14025 backedges. 0 proven. 14025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:02,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:02,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828491487] [2021-10-21 19:06:02,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828491487] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:02,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811966164] [2021-10-21 19:06:02,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:06:02,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:02,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:02,901 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:02,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-10-21 19:06:07,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2021-10-21 19:06:07,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:07,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 77 conjunts are in the unsatisfiable core [2021-10-21 19:06:07,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:08,307 INFO L134 CoverageAnalysis]: Checked inductivity of 14025 backedges. 0 proven. 14025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:08,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811966164] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:08,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:08,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 77 [2021-10-21 19:06:08,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834075874] [2021-10-21 19:06:08,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-10-21 19:06:08,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:08,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-10-21 19:06:08,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2021-10-21 19:06:08,310 INFO L87 Difference]: Start difference. First operand 381 states and 381 transitions. Second operand has 78 states, 77 states have (on average 4.935064935064935) internal successors, (380), 78 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:08,511 INFO L93 Difference]: Finished difference Result 388 states and 388 transitions. [2021-10-21 19:06:08,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-10-21 19:06:08,511 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 77 states have (on average 4.935064935064935) internal successors, (380), 78 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2021-10-21 19:06:08,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:08,513 INFO L225 Difference]: With dead ends: 388 [2021-10-21 19:06:08,513 INFO L226 Difference]: Without dead ends: 387 [2021-10-21 19:06:08,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1880.5ms TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2021-10-21 19:06:08,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-10-21 19:06:08,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 386. [2021-10-21 19:06:08,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 1.0025974025974025) internal successors, (386), 385 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:08,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 386 transitions. [2021-10-21 19:06:08,518 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 386 transitions. Word has length 380 [2021-10-21 19:06:08,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:08,518 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 386 transitions. [2021-10-21 19:06:08,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 77 states have (on average 4.935064935064935) internal successors, (380), 78 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:08,519 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 386 transitions. [2021-10-21 19:06:08,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2021-10-21 19:06:08,520 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:08,520 INFO L512 BasicCegarLoop]: trace histogram [77, 76, 76, 76, 76, 1, 1, 1, 1] [2021-10-21 19:06:08,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:08,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-10-21 19:06:08,721 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:06:08,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:08,721 INFO L82 PathProgramCache]: Analyzing trace with hash 2039179941, now seen corresponding path program 76 times [2021-10-21 19:06:08,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:08,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434858580] [2021-10-21 19:06:08,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:08,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:10,865 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:10,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:10,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434858580] [2021-10-21 19:06:10,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434858580] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:10,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189146487] [2021-10-21 19:06:10,866 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:06:10,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:10,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:10,866 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:10,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-10-21 19:06:15,275 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:06:15,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:15,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 78 conjunts are in the unsatisfiable core [2021-10-21 19:06:15,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:16,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189146487] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:16,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:16,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 78 [2021-10-21 19:06:16,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91382733] [2021-10-21 19:06:16,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-10-21 19:06:16,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:16,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-10-21 19:06:16,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2021-10-21 19:06:16,129 INFO L87 Difference]: Start difference. First operand 386 states and 386 transitions. Second operand has 79 states, 78 states have (on average 4.935897435897436) internal successors, (385), 79 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:16,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:16,332 INFO L93 Difference]: Finished difference Result 393 states and 393 transitions. [2021-10-21 19:06:16,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-21 19:06:16,332 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 4.935897435897436) internal successors, (385), 79 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2021-10-21 19:06:16,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:16,334 INFO L225 Difference]: With dead ends: 393 [2021-10-21 19:06:16,334 INFO L226 Difference]: Without dead ends: 392 [2021-10-21 19:06:16,334 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1922.5ms TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2021-10-21 19:06:16,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-10-21 19:06:16,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2021-10-21 19:06:16,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 390 states have (on average 1.0025641025641026) internal successors, (391), 390 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:16,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 391 transitions. [2021-10-21 19:06:16,339 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 391 transitions. Word has length 385 [2021-10-21 19:06:16,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:16,339 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 391 transitions. [2021-10-21 19:06:16,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 4.935897435897436) internal successors, (385), 79 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:16,340 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 391 transitions. [2021-10-21 19:06:16,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-10-21 19:06:16,341 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:16,342 INFO L512 BasicCegarLoop]: trace histogram [78, 77, 77, 77, 77, 1, 1, 1, 1] [2021-10-21 19:06:16,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2021-10-21 19:06:16,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:16,542 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:06:16,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:16,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1016103055, now seen corresponding path program 77 times [2021-10-21 19:06:16,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:16,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542819859] [2021-10-21 19:06:16,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:16,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:18,732 INFO L134 CoverageAnalysis]: Checked inductivity of 14784 backedges. 0 proven. 14784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:18,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:18,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542819859] [2021-10-21 19:06:18,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542819859] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:18,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484161218] [2021-10-21 19:06:18,733 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:06:18,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:18,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:18,734 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:18,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2021-10-21 19:06:23,517 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2021-10-21 19:06:23,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:23,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 79 conjunts are in the unsatisfiable core [2021-10-21 19:06:23,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 14784 backedges. 0 proven. 14784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:24,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484161218] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:24,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:24,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 79 [2021-10-21 19:06:24,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191165405] [2021-10-21 19:06:24,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2021-10-21 19:06:24,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:24,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-10-21 19:06:24,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2021-10-21 19:06:24,499 INFO L87 Difference]: Start difference. First operand 391 states and 391 transitions. Second operand has 80 states, 79 states have (on average 4.936708860759493) internal successors, (390), 80 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:24,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:24,771 INFO L93 Difference]: Finished difference Result 398 states and 398 transitions. [2021-10-21 19:06:24,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-10-21 19:06:24,771 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 4.936708860759493) internal successors, (390), 80 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2021-10-21 19:06:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:24,774 INFO L225 Difference]: With dead ends: 398 [2021-10-21 19:06:24,774 INFO L226 Difference]: Without dead ends: 397 [2021-10-21 19:06:24,775 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1970.4ms TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2021-10-21 19:06:24,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-10-21 19:06:24,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 396. [2021-10-21 19:06:24,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.0025316455696203) internal successors, (396), 395 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:24,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 396 transitions. [2021-10-21 19:06:24,784 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 396 transitions. Word has length 390 [2021-10-21 19:06:24,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:24,785 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 396 transitions. [2021-10-21 19:06:24,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 4.936708860759493) internal successors, (390), 80 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:24,785 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 396 transitions. [2021-10-21 19:06:24,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-10-21 19:06:24,789 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:24,789 INFO L512 BasicCegarLoop]: trace histogram [79, 78, 78, 78, 78, 1, 1, 1, 1] [2021-10-21 19:06:24,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:25,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2021-10-21 19:06:25,012 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:06:25,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:25,013 INFO L82 PathProgramCache]: Analyzing trace with hash -2062251483, now seen corresponding path program 78 times [2021-10-21 19:06:25,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:25,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381275465] [2021-10-21 19:06:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:25,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 15171 backedges. 0 proven. 15171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:27,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:27,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381275465] [2021-10-21 19:06:27,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381275465] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:27,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702447326] [2021-10-21 19:06:27,262 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:06:27,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:27,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:27,263 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:27,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-10-21 19:06:31,960 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 79 check-sat command(s) [2021-10-21 19:06:31,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:31,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 80 conjunts are in the unsatisfiable core [2021-10-21 19:06:31,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:32,852 INFO L134 CoverageAnalysis]: Checked inductivity of 15171 backedges. 0 proven. 15171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:32,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702447326] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:32,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:32,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 80 [2021-10-21 19:06:32,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48087228] [2021-10-21 19:06:32,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2021-10-21 19:06:32,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:32,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-10-21 19:06:32,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2021-10-21 19:06:32,855 INFO L87 Difference]: Start difference. First operand 396 states and 396 transitions. Second operand has 81 states, 80 states have (on average 4.9375) internal successors, (395), 81 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:33,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:33,050 INFO L93 Difference]: Finished difference Result 403 states and 403 transitions. [2021-10-21 19:06:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-10-21 19:06:33,050 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 80 states have (on average 4.9375) internal successors, (395), 81 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2021-10-21 19:06:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:33,052 INFO L225 Difference]: With dead ends: 403 [2021-10-21 19:06:33,052 INFO L226 Difference]: Without dead ends: 402 [2021-10-21 19:06:33,052 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2034.4ms TimeCoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2021-10-21 19:06:33,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-10-21 19:06:33,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 401. [2021-10-21 19:06:33,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.0025) internal successors, (401), 400 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:33,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 401 transitions. [2021-10-21 19:06:33,057 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 401 transitions. Word has length 395 [2021-10-21 19:06:33,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:33,058 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 401 transitions. [2021-10-21 19:06:33,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 80 states have (on average 4.9375) internal successors, (395), 81 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:33,058 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 401 transitions. [2021-10-21 19:06:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-10-21 19:06:33,060 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:33,060 INFO L512 BasicCegarLoop]: trace histogram [80, 79, 79, 79, 79, 1, 1, 1, 1] [2021-10-21 19:06:33,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:33,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:33,260 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:06:33,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:33,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1177423857, now seen corresponding path program 79 times [2021-10-21 19:06:33,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:33,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477079962] [2021-10-21 19:06:33,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:33,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 15563 backedges. 0 proven. 15563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:35,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:35,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477079962] [2021-10-21 19:06:35,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477079962] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:35,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653222999] [2021-10-21 19:06:35,546 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:06:35,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:35,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:35,547 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:35,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-10-21 19:06:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:40,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 81 conjunts are in the unsatisfiable core [2021-10-21 19:06:40,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 15563 backedges. 0 proven. 15563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:41,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653222999] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:41,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:41,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81] total 81 [2021-10-21 19:06:41,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101186247] [2021-10-21 19:06:41,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2021-10-21 19:06:41,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:41,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-10-21 19:06:41,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2021-10-21 19:06:41,222 INFO L87 Difference]: Start difference. First operand 401 states and 401 transitions. Second operand has 82 states, 81 states have (on average 4.938271604938271) internal successors, (400), 82 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:41,413 INFO L93 Difference]: Finished difference Result 408 states and 408 transitions. [2021-10-21 19:06:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-10-21 19:06:41,413 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 81 states have (on average 4.938271604938271) internal successors, (400), 82 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 400 [2021-10-21 19:06:41,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:41,415 INFO L225 Difference]: With dead ends: 408 [2021-10-21 19:06:41,415 INFO L226 Difference]: Without dead ends: 407 [2021-10-21 19:06:41,415 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2067.4ms TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2021-10-21 19:06:41,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-10-21 19:06:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2021-10-21 19:06:41,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.002469135802469) internal successors, (406), 405 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 406 transitions. [2021-10-21 19:06:41,420 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 406 transitions. Word has length 400 [2021-10-21 19:06:41,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:41,421 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 406 transitions. [2021-10-21 19:06:41,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 81 states have (on average 4.938271604938271) internal successors, (400), 82 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:41,421 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 406 transitions. [2021-10-21 19:06:41,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2021-10-21 19:06:41,423 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:41,423 INFO L512 BasicCegarLoop]: trace histogram [81, 80, 80, 80, 80, 1, 1, 1, 1] [2021-10-21 19:06:41,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:41,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:41,649 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:06:41,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:41,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1654896219, now seen corresponding path program 80 times [2021-10-21 19:06:41,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:41,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743298960] [2021-10-21 19:06:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:41,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 15960 backedges. 0 proven. 15960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:43,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:43,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743298960] [2021-10-21 19:06:43,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743298960] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:43,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31229013] [2021-10-21 19:06:43,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:06:43,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:43,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:43,941 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:43,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-10-21 19:06:48,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:06:48,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:48,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 82 conjunts are in the unsatisfiable core [2021-10-21 19:06:48,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 15960 backedges. 0 proven. 15960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:49,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31229013] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:49,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:49,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 82 [2021-10-21 19:06:49,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756703078] [2021-10-21 19:06:49,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2021-10-21 19:06:49,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:49,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-10-21 19:06:49,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2021-10-21 19:06:49,850 INFO L87 Difference]: Start difference. First operand 406 states and 406 transitions. Second operand has 83 states, 82 states have (on average 4.939024390243903) internal successors, (405), 83 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:50,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:50,121 INFO L93 Difference]: Finished difference Result 413 states and 413 transitions. [2021-10-21 19:06:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-10-21 19:06:50,121 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 4.939024390243903) internal successors, (405), 83 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 405 [2021-10-21 19:06:50,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:50,124 INFO L225 Difference]: With dead ends: 413 [2021-10-21 19:06:50,124 INFO L226 Difference]: Without dead ends: 412 [2021-10-21 19:06:50,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2074.5ms TimeCoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2021-10-21 19:06:50,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-10-21 19:06:50,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 411. [2021-10-21 19:06:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.002439024390244) internal successors, (411), 410 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:50,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 411 transitions. [2021-10-21 19:06:50,132 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 411 transitions. Word has length 405 [2021-10-21 19:06:50,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:50,132 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 411 transitions. [2021-10-21 19:06:50,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 4.939024390243903) internal successors, (405), 83 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:50,133 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 411 transitions. [2021-10-21 19:06:50,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2021-10-21 19:06:50,136 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:50,136 INFO L512 BasicCegarLoop]: trace histogram [82, 81, 81, 81, 81, 1, 1, 1, 1] [2021-10-21 19:06:50,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2021-10-21 19:06:50,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2021-10-21 19:06:50,337 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:06:50,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:50,337 INFO L82 PathProgramCache]: Analyzing trace with hash 173146225, now seen corresponding path program 81 times [2021-10-21 19:06:50,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:50,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540363057] [2021-10-21 19:06:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:50,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:06:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 16362 backedges. 0 proven. 16362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:52,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:06:52,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540363057] [2021-10-21 19:06:52,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540363057] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:52,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911519958] [2021-10-21 19:06:52,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:06:52,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:52,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:06:52,689 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:06:52,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-21 19:06:57,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 82 check-sat command(s) [2021-10-21 19:06:57,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:06:57,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 83 conjunts are in the unsatisfiable core [2021-10-21 19:06:57,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:06:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 16362 backedges. 0 proven. 16362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:06:58,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911519958] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:06:58,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:06:58,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83] total 83 [2021-10-21 19:06:58,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69640294] [2021-10-21 19:06:58,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2021-10-21 19:06:58,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:06:58,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-10-21 19:06:58,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2021-10-21 19:06:58,883 INFO L87 Difference]: Start difference. First operand 411 states and 411 transitions. Second operand has 84 states, 83 states have (on average 4.9397590361445785) internal successors, (410), 84 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:59,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:06:59,112 INFO L93 Difference]: Finished difference Result 418 states and 418 transitions. [2021-10-21 19:06:59,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-10-21 19:06:59,113 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 83 states have (on average 4.9397590361445785) internal successors, (410), 84 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 410 [2021-10-21 19:06:59,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:06:59,115 INFO L225 Difference]: With dead ends: 418 [2021-10-21 19:06:59,115 INFO L226 Difference]: Without dead ends: 417 [2021-10-21 19:06:59,116 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2127.1ms TimeCoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2021-10-21 19:06:59,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-10-21 19:06:59,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 416. [2021-10-21 19:06:59,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 1.002409638554217) internal successors, (416), 415 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:59,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 416 transitions. [2021-10-21 19:06:59,123 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 416 transitions. Word has length 410 [2021-10-21 19:06:59,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:06:59,123 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 416 transitions. [2021-10-21 19:06:59,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 83 states have (on average 4.9397590361445785) internal successors, (410), 84 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:06:59,124 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 416 transitions. [2021-10-21 19:06:59,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-10-21 19:06:59,127 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:06:59,127 INFO L512 BasicCegarLoop]: trace histogram [83, 82, 82, 82, 82, 1, 1, 1, 1] [2021-10-21 19:06:59,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-10-21 19:06:59,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:06:59,329 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:06:59,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:06:59,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1553639717, now seen corresponding path program 82 times [2021-10-21 19:06:59,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:06:59,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063403263] [2021-10-21 19:06:59,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:06:59,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:06:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 16769 backedges. 0 proven. 16769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:01,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:07:01,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063403263] [2021-10-21 19:07:01,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063403263] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:01,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639824814] [2021-10-21 19:07:01,898 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:07:01,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:01,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:07:01,900 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:07:01,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-10-21 19:07:06,982 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:07:06,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:07:06,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 84 conjunts are in the unsatisfiable core [2021-10-21 19:07:06,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:07:07,982 INFO L134 CoverageAnalysis]: Checked inductivity of 16769 backedges. 0 proven. 16769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:07,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639824814] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:07,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:07:07,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84] total 84 [2021-10-21 19:07:07,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881363950] [2021-10-21 19:07:07,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2021-10-21 19:07:07,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:07:07,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2021-10-21 19:07:07,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2021-10-21 19:07:07,985 INFO L87 Difference]: Start difference. First operand 416 states and 416 transitions. Second operand has 85 states, 84 states have (on average 4.940476190476191) internal successors, (415), 85 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:08,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:07:08,204 INFO L93 Difference]: Finished difference Result 423 states and 423 transitions. [2021-10-21 19:07:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-10-21 19:07:08,204 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 84 states have (on average 4.940476190476191) internal successors, (415), 85 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 415 [2021-10-21 19:07:08,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:07:08,206 INFO L225 Difference]: With dead ends: 423 [2021-10-21 19:07:08,206 INFO L226 Difference]: Without dead ends: 422 [2021-10-21 19:07:08,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2282.9ms TimeCoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2021-10-21 19:07:08,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-10-21 19:07:08,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 421. [2021-10-21 19:07:08,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.0023809523809524) internal successors, (421), 420 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:08,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 421 transitions. [2021-10-21 19:07:08,213 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 421 transitions. Word has length 415 [2021-10-21 19:07:08,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:07:08,213 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 421 transitions. [2021-10-21 19:07:08,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 84 states have (on average 4.940476190476191) internal successors, (415), 85 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:08,213 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 421 transitions. [2021-10-21 19:07:08,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-10-21 19:07:08,216 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:07:08,216 INFO L512 BasicCegarLoop]: trace histogram [84, 83, 83, 83, 83, 1, 1, 1, 1] [2021-10-21 19:07:08,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2021-10-21 19:07:08,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2021-10-21 19:07:08,437 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:07:08,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:07:08,437 INFO L82 PathProgramCache]: Analyzing trace with hash 413356273, now seen corresponding path program 83 times [2021-10-21 19:07:08,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:07:08,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163687949] [2021-10-21 19:07:08,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:07:08,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:07:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:11,030 INFO L134 CoverageAnalysis]: Checked inductivity of 17181 backedges. 0 proven. 17181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:11,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:07:11,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163687949] [2021-10-21 19:07:11,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163687949] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:11,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127782872] [2021-10-21 19:07:11,030 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:07:11,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:11,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:07:11,033 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:07:11,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-10-21 19:07:16,406 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 84 check-sat command(s) [2021-10-21 19:07:16,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:07:16,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 85 conjunts are in the unsatisfiable core [2021-10-21 19:07:16,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:07:17,360 INFO L134 CoverageAnalysis]: Checked inductivity of 17181 backedges. 0 proven. 17181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:17,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127782872] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:17,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:07:17,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85] total 85 [2021-10-21 19:07:17,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253170315] [2021-10-21 19:07:17,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2021-10-21 19:07:17,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:07:17,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-10-21 19:07:17,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2021-10-21 19:07:17,363 INFO L87 Difference]: Start difference. First operand 421 states and 421 transitions. Second operand has 86 states, 85 states have (on average 4.9411764705882355) internal successors, (420), 86 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:17,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:07:17,586 INFO L93 Difference]: Finished difference Result 428 states and 428 transitions. [2021-10-21 19:07:17,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-10-21 19:07:17,587 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 85 states have (on average 4.9411764705882355) internal successors, (420), 86 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 420 [2021-10-21 19:07:17,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:07:17,588 INFO L225 Difference]: With dead ends: 428 [2021-10-21 19:07:17,589 INFO L226 Difference]: Without dead ends: 427 [2021-10-21 19:07:17,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2366.9ms TimeCoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2021-10-21 19:07:17,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-10-21 19:07:17,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2021-10-21 19:07:17,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 1.0023529411764707) internal successors, (426), 425 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 426 transitions. [2021-10-21 19:07:17,595 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 426 transitions. Word has length 420 [2021-10-21 19:07:17,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:07:17,595 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 426 transitions. [2021-10-21 19:07:17,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 85 states have (on average 4.9411764705882355) internal successors, (420), 86 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:17,595 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 426 transitions. [2021-10-21 19:07:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-10-21 19:07:17,597 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:07:17,597 INFO L512 BasicCegarLoop]: trace histogram [85, 84, 84, 84, 84, 1, 1, 1, 1] [2021-10-21 19:07:17,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2021-10-21 19:07:17,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-10-21 19:07:17,798 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:07:17,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:07:17,798 INFO L82 PathProgramCache]: Analyzing trace with hash -150493019, now seen corresponding path program 84 times [2021-10-21 19:07:17,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:07:17,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606845106] [2021-10-21 19:07:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:07:17,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:07:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:20,352 INFO L134 CoverageAnalysis]: Checked inductivity of 17598 backedges. 0 proven. 17598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:20,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:07:20,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606845106] [2021-10-21 19:07:20,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606845106] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:20,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753414780] [2021-10-21 19:07:20,353 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:07:20,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:20,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:07:20,354 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:07:20,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-10-21 19:07:25,817 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 85 check-sat command(s) [2021-10-21 19:07:25,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:07:25,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 86 conjunts are in the unsatisfiable core [2021-10-21 19:07:25,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:07:26,903 INFO L134 CoverageAnalysis]: Checked inductivity of 17598 backedges. 0 proven. 17598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:26,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753414780] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:26,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:07:26,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86] total 86 [2021-10-21 19:07:26,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598988082] [2021-10-21 19:07:26,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2021-10-21 19:07:26,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:07:26,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-10-21 19:07:26,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2021-10-21 19:07:26,906 INFO L87 Difference]: Start difference. First operand 426 states and 426 transitions. Second operand has 87 states, 86 states have (on average 4.941860465116279) internal successors, (425), 87 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:27,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:07:27,106 INFO L93 Difference]: Finished difference Result 433 states and 433 transitions. [2021-10-21 19:07:27,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-10-21 19:07:27,107 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 86 states have (on average 4.941860465116279) internal successors, (425), 87 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 425 [2021-10-21 19:07:27,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:07:27,108 INFO L225 Difference]: With dead ends: 433 [2021-10-21 19:07:27,108 INFO L226 Difference]: Without dead ends: 432 [2021-10-21 19:07:27,109 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2324.4ms TimeCoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2021-10-21 19:07:27,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-10-21 19:07:27,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 431. [2021-10-21 19:07:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.0023255813953489) internal successors, (431), 430 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:27,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 431 transitions. [2021-10-21 19:07:27,117 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 431 transitions. Word has length 425 [2021-10-21 19:07:27,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:07:27,118 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 431 transitions. [2021-10-21 19:07:27,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 86 states have (on average 4.941860465116279) internal successors, (425), 87 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:27,118 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 431 transitions. [2021-10-21 19:07:27,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-10-21 19:07:27,121 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:07:27,121 INFO L512 BasicCegarLoop]: trace histogram [86, 85, 85, 85, 85, 1, 1, 1, 1] [2021-10-21 19:07:27,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2021-10-21 19:07:27,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:27,337 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:07:27,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:07:27,337 INFO L82 PathProgramCache]: Analyzing trace with hash 535429489, now seen corresponding path program 85 times [2021-10-21 19:07:27,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:07:27,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481616384] [2021-10-21 19:07:27,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:07:27,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:07:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18020 backedges. 0 proven. 18020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:29,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:07:29,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481616384] [2021-10-21 19:07:29,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481616384] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:29,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098194360] [2021-10-21 19:07:29,890 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:07:29,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:29,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:07:29,893 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:07:29,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-10-21 19:07:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:35,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 87 conjunts are in the unsatisfiable core [2021-10-21 19:07:35,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:07:36,315 INFO L134 CoverageAnalysis]: Checked inductivity of 18020 backedges. 0 proven. 18020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:36,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098194360] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:36,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:07:36,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87] total 87 [2021-10-21 19:07:36,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369316219] [2021-10-21 19:07:36,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2021-10-21 19:07:36,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:07:36,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-10-21 19:07:36,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2021-10-21 19:07:36,318 INFO L87 Difference]: Start difference. First operand 431 states and 431 transitions. Second operand has 88 states, 87 states have (on average 4.942528735632184) internal successors, (430), 88 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:36,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:07:36,544 INFO L93 Difference]: Finished difference Result 438 states and 438 transitions. [2021-10-21 19:07:36,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-10-21 19:07:36,544 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 4.942528735632184) internal successors, (430), 88 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 430 [2021-10-21 19:07:36,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:07:36,546 INFO L225 Difference]: With dead ends: 438 [2021-10-21 19:07:36,546 INFO L226 Difference]: Without dead ends: 437 [2021-10-21 19:07:36,547 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2319.0ms TimeCoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2021-10-21 19:07:36,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-10-21 19:07:36,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 436. [2021-10-21 19:07:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 1.0022988505747126) internal successors, (436), 435 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:36,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 436 transitions. [2021-10-21 19:07:36,552 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 436 transitions. Word has length 430 [2021-10-21 19:07:36,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:07:36,552 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 436 transitions. [2021-10-21 19:07:36,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 4.942528735632184) internal successors, (430), 88 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:36,553 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 436 transitions. [2021-10-21 19:07:36,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2021-10-21 19:07:36,554 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:07:36,555 INFO L512 BasicCegarLoop]: trace histogram [87, 86, 86, 86, 86, 1, 1, 1, 1] [2021-10-21 19:07:36,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2021-10-21 19:07:36,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:36,755 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:07:36,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:07:36,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1160034267, now seen corresponding path program 86 times [2021-10-21 19:07:36,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:07:36,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951958431] [2021-10-21 19:07:36,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:07:36,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:07:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:39,432 INFO L134 CoverageAnalysis]: Checked inductivity of 18447 backedges. 0 proven. 18447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:39,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:07:39,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951958431] [2021-10-21 19:07:39,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951958431] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:39,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536843300] [2021-10-21 19:07:39,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:07:39,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:39,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:07:39,434 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:07:39,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2021-10-21 19:07:44,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:07:44,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:07:44,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 88 conjunts are in the unsatisfiable core [2021-10-21 19:07:44,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:07:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 18447 backedges. 0 proven. 18447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:45,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536843300] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:45,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:07:45,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88] total 88 [2021-10-21 19:07:45,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737333298] [2021-10-21 19:07:45,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2021-10-21 19:07:45,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:07:45,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-10-21 19:07:45,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2021-10-21 19:07:45,948 INFO L87 Difference]: Start difference. First operand 436 states and 436 transitions. Second operand has 89 states, 88 states have (on average 4.943181818181818) internal successors, (435), 89 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:46,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:07:46,174 INFO L93 Difference]: Finished difference Result 443 states and 443 transitions. [2021-10-21 19:07:46,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-10-21 19:07:46,175 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 88 states have (on average 4.943181818181818) internal successors, (435), 89 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 435 [2021-10-21 19:07:46,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:07:46,177 INFO L225 Difference]: With dead ends: 443 [2021-10-21 19:07:46,177 INFO L226 Difference]: Without dead ends: 442 [2021-10-21 19:07:46,178 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2450.9ms TimeCoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2021-10-21 19:07:46,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-10-21 19:07:46,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 441. [2021-10-21 19:07:46,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.0022727272727272) internal successors, (441), 440 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:46,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 441 transitions. [2021-10-21 19:07:46,183 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 441 transitions. Word has length 435 [2021-10-21 19:07:46,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:07:46,183 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 441 transitions. [2021-10-21 19:07:46,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 88 states have (on average 4.943181818181818) internal successors, (435), 89 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:46,183 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 441 transitions. [2021-10-21 19:07:46,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-10-21 19:07:46,185 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:07:46,185 INFO L512 BasicCegarLoop]: trace histogram [88, 87, 87, 87, 87, 1, 1, 1, 1] [2021-10-21 19:07:46,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2021-10-21 19:07:46,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:46,386 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:07:46,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:07:46,386 INFO L82 PathProgramCache]: Analyzing trace with hash -185724431, now seen corresponding path program 87 times [2021-10-21 19:07:46,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:07:46,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985555212] [2021-10-21 19:07:46,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:07:46,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:07:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 18879 backedges. 0 proven. 18879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:49,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:07:49,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985555212] [2021-10-21 19:07:49,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985555212] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:49,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822605088] [2021-10-21 19:07:49,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:07:49,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:49,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:07:49,096 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:07:49,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2021-10-21 19:07:55,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 88 check-sat command(s) [2021-10-21 19:07:55,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:07:55,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 89 conjunts are in the unsatisfiable core [2021-10-21 19:07:55,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:07:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 18879 backedges. 0 proven. 18879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:56,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822605088] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:56,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:07:56,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89] total 89 [2021-10-21 19:07:56,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154129251] [2021-10-21 19:07:56,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2021-10-21 19:07:56,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:07:56,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-10-21 19:07:56,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2021-10-21 19:07:56,102 INFO L87 Difference]: Start difference. First operand 441 states and 441 transitions. Second operand has 90 states, 89 states have (on average 4.943820224719101) internal successors, (440), 90 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:56,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:07:56,382 INFO L93 Difference]: Finished difference Result 448 states and 448 transitions. [2021-10-21 19:07:56,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-10-21 19:07:56,382 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 89 states have (on average 4.943820224719101) internal successors, (440), 90 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 440 [2021-10-21 19:07:56,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:07:56,384 INFO L225 Difference]: With dead ends: 448 [2021-10-21 19:07:56,384 INFO L226 Difference]: Without dead ends: 447 [2021-10-21 19:07:56,385 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2462.5ms TimeCoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2021-10-21 19:07:56,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-10-21 19:07:56,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2021-10-21 19:07:56,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.002247191011236) internal successors, (446), 445 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:56,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 446 transitions. [2021-10-21 19:07:56,390 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 446 transitions. Word has length 440 [2021-10-21 19:07:56,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:07:56,391 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 446 transitions. [2021-10-21 19:07:56,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 89 states have (on average 4.943820224719101) internal successors, (440), 90 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:07:56,391 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 446 transitions. [2021-10-21 19:07:56,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2021-10-21 19:07:56,393 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:07:56,393 INFO L512 BasicCegarLoop]: trace histogram [89, 88, 88, 88, 88, 1, 1, 1, 1] [2021-10-21 19:07:56,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2021-10-21 19:07:56,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:56,594 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:07:56,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:07:56,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1873967195, now seen corresponding path program 88 times [2021-10-21 19:07:56,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:07:56,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686451362] [2021-10-21 19:07:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:07:56,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:07:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:07:59,333 INFO L134 CoverageAnalysis]: Checked inductivity of 19316 backedges. 0 proven. 19316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:07:59,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:07:59,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686451362] [2021-10-21 19:07:59,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686451362] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:07:59,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879095750] [2021-10-21 19:07:59,334 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:07:59,334 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:07:59,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:07:59,335 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:07:59,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-10-21 19:08:05,134 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:08:05,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:08:05,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 90 conjunts are in the unsatisfiable core [2021-10-21 19:08:05,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:08:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 19316 backedges. 0 proven. 19316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:06,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879095750] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:08:06,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:08:06,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 90] total 90 [2021-10-21 19:08:06,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797018467] [2021-10-21 19:08:06,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2021-10-21 19:08:06,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:08:06,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2021-10-21 19:08:06,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2021-10-21 19:08:06,219 INFO L87 Difference]: Start difference. First operand 446 states and 446 transitions. Second operand has 91 states, 90 states have (on average 4.944444444444445) internal successors, (445), 91 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:08:06,474 INFO L93 Difference]: Finished difference Result 453 states and 453 transitions. [2021-10-21 19:08:06,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-10-21 19:08:06,474 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 90 states have (on average 4.944444444444445) internal successors, (445), 91 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 445 [2021-10-21 19:08:06,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:08:06,476 INFO L225 Difference]: With dead ends: 453 [2021-10-21 19:08:06,476 INFO L226 Difference]: Without dead ends: 452 [2021-10-21 19:08:06,477 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2497.3ms TimeCoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2021-10-21 19:08:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-10-21 19:08:06,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 451. [2021-10-21 19:08:06,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 1.0022222222222221) internal successors, (451), 450 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:06,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 451 transitions. [2021-10-21 19:08:06,482 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 451 transitions. Word has length 445 [2021-10-21 19:08:06,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:08:06,483 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 451 transitions. [2021-10-21 19:08:06,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 90 states have (on average 4.944444444444445) internal successors, (445), 91 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:06,483 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 451 transitions. [2021-10-21 19:08:06,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-10-21 19:08:06,485 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:08:06,485 INFO L512 BasicCegarLoop]: trace histogram [90, 89, 89, 89, 89, 1, 1, 1, 1] [2021-10-21 19:08:06,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2021-10-21 19:08:06,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:08:06,685 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:08:06,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:08:06,686 INFO L82 PathProgramCache]: Analyzing trace with hash 309822065, now seen corresponding path program 89 times [2021-10-21 19:08:06,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:08:06,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768118316] [2021-10-21 19:08:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:08:06,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:08:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:08:09,492 INFO L134 CoverageAnalysis]: Checked inductivity of 19758 backedges. 0 proven. 19758 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:09,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:08:09,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768118316] [2021-10-21 19:08:09,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768118316] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:08:09,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200875251] [2021-10-21 19:08:09,492 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:08:09,493 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:08:09,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:08:09,493 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:08:09,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2021-10-21 19:08:15,592 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 90 check-sat command(s) [2021-10-21 19:08:15,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:08:15,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 91 conjunts are in the unsatisfiable core [2021-10-21 19:08:15,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:08:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 19758 backedges. 0 proven. 19758 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:16,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200875251] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:08:16,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:08:16,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91] total 91 [2021-10-21 19:08:16,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767725509] [2021-10-21 19:08:16,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2021-10-21 19:08:16,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:08:16,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-10-21 19:08:16,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-10-21 19:08:16,612 INFO L87 Difference]: Start difference. First operand 451 states and 451 transitions. Second operand has 92 states, 91 states have (on average 4.945054945054945) internal successors, (450), 92 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:16,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:08:16,866 INFO L93 Difference]: Finished difference Result 458 states and 458 transitions. [2021-10-21 19:08:16,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-10-21 19:08:16,867 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 4.945054945054945) internal successors, (450), 92 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 450 [2021-10-21 19:08:16,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:08:16,869 INFO L225 Difference]: With dead ends: 458 [2021-10-21 19:08:16,869 INFO L226 Difference]: Without dead ends: 457 [2021-10-21 19:08:16,870 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2540.1ms TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-10-21 19:08:16,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-10-21 19:08:16,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2021-10-21 19:08:16,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 1.0021978021978022) internal successors, (456), 455 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:16,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 456 transitions. [2021-10-21 19:08:16,875 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 456 transitions. Word has length 450 [2021-10-21 19:08:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:08:16,875 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 456 transitions. [2021-10-21 19:08:16,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 4.945054945054945) internal successors, (450), 92 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 456 transitions. [2021-10-21 19:08:16,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-10-21 19:08:16,877 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:08:16,878 INFO L512 BasicCegarLoop]: trace histogram [91, 90, 90, 90, 90, 1, 1, 1, 1] [2021-10-21 19:08:16,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2021-10-21 19:08:17,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable93 [2021-10-21 19:08:17,078 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:08:17,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:08:17,079 INFO L82 PathProgramCache]: Analyzing trace with hash 2039899941, now seen corresponding path program 90 times [2021-10-21 19:08:17,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:08:17,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314929176] [2021-10-21 19:08:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:08:17,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:08:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:08:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 20205 backedges. 0 proven. 20205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:19,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:08:19,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314929176] [2021-10-21 19:08:19,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314929176] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:08:19,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268843395] [2021-10-21 19:08:19,964 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:08:19,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:08:19,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:08:19,964 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:08:19,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2021-10-21 19:08:26,328 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 91 check-sat command(s) [2021-10-21 19:08:26,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:08:26,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 92 conjunts are in the unsatisfiable core [2021-10-21 19:08:26,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:08:27,335 INFO L134 CoverageAnalysis]: Checked inductivity of 20205 backedges. 0 proven. 20205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:27,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268843395] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:08:27,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:08:27,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 92] total 92 [2021-10-21 19:08:27,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005995696] [2021-10-21 19:08:27,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2021-10-21 19:08:27,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:08:27,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-10-21 19:08:27,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2021-10-21 19:08:27,338 INFO L87 Difference]: Start difference. First operand 456 states and 456 transitions. Second operand has 93 states, 92 states have (on average 4.945652173913044) internal successors, (455), 93 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:27,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:08:27,575 INFO L93 Difference]: Finished difference Result 463 states and 463 transitions. [2021-10-21 19:08:27,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-10-21 19:08:27,575 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 92 states have (on average 4.945652173913044) internal successors, (455), 93 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 455 [2021-10-21 19:08:27,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:08:27,577 INFO L225 Difference]: With dead ends: 463 [2021-10-21 19:08:27,577 INFO L226 Difference]: Without dead ends: 462 [2021-10-21 19:08:27,578 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2624.7ms TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2021-10-21 19:08:27,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-10-21 19:08:27,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 461. [2021-10-21 19:08:27,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 1.0021739130434784) internal successors, (461), 460 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 461 transitions. [2021-10-21 19:08:27,584 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 461 transitions. Word has length 455 [2021-10-21 19:08:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:08:27,585 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 461 transitions. [2021-10-21 19:08:27,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 92 states have (on average 4.945652173913044) internal successors, (455), 93 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:27,585 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 461 transitions. [2021-10-21 19:08:27,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-10-21 19:08:27,587 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:08:27,587 INFO L512 BasicCegarLoop]: trace histogram [92, 91, 91, 91, 91, 1, 1, 1, 1] [2021-10-21 19:08:27,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2021-10-21 19:08:27,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:08:27,788 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:08:27,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:08:27,788 INFO L82 PathProgramCache]: Analyzing trace with hash 424563441, now seen corresponding path program 91 times [2021-10-21 19:08:27,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:08:27,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527932700] [2021-10-21 19:08:27,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:08:27,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:08:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:08:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 20657 backedges. 0 proven. 20657 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:30,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:08:30,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527932700] [2021-10-21 19:08:30,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527932700] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:08:30,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172217629] [2021-10-21 19:08:30,712 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:08:30,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:08:30,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:08:30,713 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:08:30,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-10-21 19:08:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:08:36,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 93 conjunts are in the unsatisfiable core [2021-10-21 19:08:36,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:08:38,030 INFO L134 CoverageAnalysis]: Checked inductivity of 20657 backedges. 0 proven. 20657 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:38,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172217629] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:08:38,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:08:38,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 93 [2021-10-21 19:08:38,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223831497] [2021-10-21 19:08:38,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-10-21 19:08:38,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:08:38,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-10-21 19:08:38,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2021-10-21 19:08:38,033 INFO L87 Difference]: Start difference. First operand 461 states and 461 transitions. Second operand has 94 states, 93 states have (on average 4.946236559139785) internal successors, (460), 94 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:38,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:08:38,275 INFO L93 Difference]: Finished difference Result 468 states and 468 transitions. [2021-10-21 19:08:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-10-21 19:08:38,275 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 4.946236559139785) internal successors, (460), 94 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 460 [2021-10-21 19:08:38,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:08:38,277 INFO L225 Difference]: With dead ends: 468 [2021-10-21 19:08:38,277 INFO L226 Difference]: Without dead ends: 467 [2021-10-21 19:08:38,278 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2675.2ms TimeCoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2021-10-21 19:08:38,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-10-21 19:08:38,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 466. [2021-10-21 19:08:38,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 465 states have (on average 1.0021505376344086) internal successors, (466), 465 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:38,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 466 transitions. [2021-10-21 19:08:38,283 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 466 transitions. Word has length 460 [2021-10-21 19:08:38,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:08:38,284 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 466 transitions. [2021-10-21 19:08:38,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 4.946236559139785) internal successors, (460), 94 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:38,284 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 466 transitions. [2021-10-21 19:08:38,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2021-10-21 19:08:38,287 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:08:38,287 INFO L512 BasicCegarLoop]: trace histogram [93, 92, 92, 92, 92, 1, 1, 1, 1] [2021-10-21 19:08:38,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2021-10-21 19:08:38,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:08:38,487 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:08:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:08:38,488 INFO L82 PathProgramCache]: Analyzing trace with hash 317580965, now seen corresponding path program 92 times [2021-10-21 19:08:38,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:08:38,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493929343] [2021-10-21 19:08:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:08:38,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:08:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:08:41,488 INFO L134 CoverageAnalysis]: Checked inductivity of 21114 backedges. 0 proven. 21114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:41,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:08:41,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493929343] [2021-10-21 19:08:41,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493929343] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:08:41,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391873619] [2021-10-21 19:08:41,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:08:41,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:08:41,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:08:41,490 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:08:41,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-10-21 19:08:47,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:08:47,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:08:47,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 94 conjunts are in the unsatisfiable core [2021-10-21 19:08:47,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:08:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 21114 backedges. 0 proven. 21114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:48,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391873619] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:08:48,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:08:48,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94] total 94 [2021-10-21 19:08:48,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303457579] [2021-10-21 19:08:48,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2021-10-21 19:08:48,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:08:48,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2021-10-21 19:08:48,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2021-10-21 19:08:48,914 INFO L87 Difference]: Start difference. First operand 466 states and 466 transitions. Second operand has 95 states, 94 states have (on average 4.946808510638298) internal successors, (465), 95 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:49,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:08:49,206 INFO L93 Difference]: Finished difference Result 473 states and 473 transitions. [2021-10-21 19:08:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-10-21 19:08:49,207 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 4.946808510638298) internal successors, (465), 95 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 465 [2021-10-21 19:08:49,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:08:49,209 INFO L225 Difference]: With dead ends: 473 [2021-10-21 19:08:49,209 INFO L226 Difference]: Without dead ends: 472 [2021-10-21 19:08:49,210 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2731.6ms TimeCoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2021-10-21 19:08:49,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-10-21 19:08:49,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 471. [2021-10-21 19:08:49,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 1.0021276595744681) internal successors, (471), 470 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:49,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 471 transitions. [2021-10-21 19:08:49,216 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 471 transitions. Word has length 465 [2021-10-21 19:08:49,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:08:49,216 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 471 transitions. [2021-10-21 19:08:49,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 4.946808510638298) internal successors, (465), 95 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:08:49,217 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 471 transitions. [2021-10-21 19:08:49,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-10-21 19:08:49,220 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:08:49,220 INFO L512 BasicCegarLoop]: trace histogram [94, 93, 93, 93, 93, 1, 1, 1, 1] [2021-10-21 19:08:49,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2021-10-21 19:08:49,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2021-10-21 19:08:49,425 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:08:49,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:08:49,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1346012017, now seen corresponding path program 93 times [2021-10-21 19:08:49,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:08:49,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179471465] [2021-10-21 19:08:49,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:08:49,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:08:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:08:52,513 INFO L134 CoverageAnalysis]: Checked inductivity of 21576 backedges. 0 proven. 21576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:08:52,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:08:52,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179471465] [2021-10-21 19:08:52,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179471465] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:08:52,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103265096] [2021-10-21 19:08:52,514 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:08:52,514 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:08:52,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:08:52,517 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:08:52,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-10-21 19:08:59,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 94 check-sat command(s) [2021-10-21 19:08:59,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:08:59,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 95 conjunts are in the unsatisfiable core [2021-10-21 19:08:59,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:09:00,357 INFO L134 CoverageAnalysis]: Checked inductivity of 21576 backedges. 0 proven. 21576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:00,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103265096] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:09:00,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:09:00,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95] total 95 [2021-10-21 19:09:00,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835274296] [2021-10-21 19:09:00,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-10-21 19:09:00,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:00,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-10-21 19:09:00,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-10-21 19:09:00,361 INFO L87 Difference]: Start difference. First operand 471 states and 471 transitions. Second operand has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:00,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:00,674 INFO L93 Difference]: Finished difference Result 478 states and 478 transitions. [2021-10-21 19:09:00,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-10-21 19:09:00,675 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 470 [2021-10-21 19:09:00,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:00,677 INFO L225 Difference]: With dead ends: 478 [2021-10-21 19:09:00,677 INFO L226 Difference]: Without dead ends: 477 [2021-10-21 19:09:00,678 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2804.4ms TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-10-21 19:09:00,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-10-21 19:09:00,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 476. [2021-10-21 19:09:00,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 475 states have (on average 1.0021052631578948) internal successors, (476), 475 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:00,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 476 transitions. [2021-10-21 19:09:00,684 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 476 transitions. Word has length 470 [2021-10-21 19:09:00,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:00,684 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 476 transitions. [2021-10-21 19:09:00,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:00,684 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 476 transitions. [2021-10-21 19:09:00,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-10-21 19:09:00,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:00,686 INFO L512 BasicCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1, 1, 1] [2021-10-21 19:09:00,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2021-10-21 19:09:00,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:09:00,887 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:09:00,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:00,887 INFO L82 PathProgramCache]: Analyzing trace with hash 311166501, now seen corresponding path program 94 times [2021-10-21 19:09:00,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:00,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869286026] [2021-10-21 19:09:00,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:00,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:04,094 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:04,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:04,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869286026] [2021-10-21 19:09:04,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869286026] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:09:04,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096689561] [2021-10-21 19:09:04,095 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:09:04,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:09:04,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:09:04,096 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:09:04,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-21 19:09:10,756 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:09:10,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:09:10,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 96 conjunts are in the unsatisfiable core [2021-10-21 19:09:10,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:09:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:11,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096689561] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:09:11,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:09:11,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96] total 96 [2021-10-21 19:09:11,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069795000] [2021-10-21 19:09:11,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2021-10-21 19:09:11,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:11,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-10-21 19:09:11,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2021-10-21 19:09:11,842 INFO L87 Difference]: Start difference. First operand 476 states and 476 transitions. Second operand has 97 states, 96 states have (on average 4.947916666666667) internal successors, (475), 97 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:12,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:12,123 INFO L93 Difference]: Finished difference Result 483 states and 483 transitions. [2021-10-21 19:09:12,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-10-21 19:09:12,123 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 96 states have (on average 4.947916666666667) internal successors, (475), 97 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 475 [2021-10-21 19:09:12,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:12,125 INFO L225 Difference]: With dead ends: 483 [2021-10-21 19:09:12,126 INFO L226 Difference]: Without dead ends: 482 [2021-10-21 19:09:12,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2938.5ms TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2021-10-21 19:09:12,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-10-21 19:09:12,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 481. [2021-10-21 19:09:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.0020833333333334) internal successors, (481), 480 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:12,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 481 transitions. [2021-10-21 19:09:12,132 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 481 transitions. Word has length 475 [2021-10-21 19:09:12,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:12,133 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 481 transitions. [2021-10-21 19:09:12,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 96 states have (on average 4.947916666666667) internal successors, (475), 97 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:12,133 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 481 transitions. [2021-10-21 19:09:12,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-10-21 19:09:12,135 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:12,135 INFO L512 BasicCegarLoop]: trace histogram [96, 95, 95, 95, 95, 1, 1, 1, 1] [2021-10-21 19:09:12,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2021-10-21 19:09:12,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:09:12,336 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:09:12,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:12,336 INFO L82 PathProgramCache]: Analyzing trace with hash 604247025, now seen corresponding path program 95 times [2021-10-21 19:09:12,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:12,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365288241] [2021-10-21 19:09:12,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:12,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 22515 backedges. 0 proven. 22515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:15,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:15,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365288241] [2021-10-21 19:09:15,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365288241] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:09:15,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470534035] [2021-10-21 19:09:15,534 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:09:15,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:09:15,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:09:15,535 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:09:15,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-10-21 19:09:22,748 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 96 check-sat command(s) [2021-10-21 19:09:22,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:09:22,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 97 conjunts are in the unsatisfiable core [2021-10-21 19:09:22,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:09:23,845 INFO L134 CoverageAnalysis]: Checked inductivity of 22515 backedges. 0 proven. 22515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:23,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470534035] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:09:23,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:09:23,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 97 [2021-10-21 19:09:23,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475538764] [2021-10-21 19:09:23,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2021-10-21 19:09:23,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:23,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-10-21 19:09:23,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2021-10-21 19:09:23,848 INFO L87 Difference]: Start difference. First operand 481 states and 481 transitions. Second operand has 98 states, 97 states have (on average 4.948453608247423) internal successors, (480), 98 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:24,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:24,123 INFO L93 Difference]: Finished difference Result 488 states and 488 transitions. [2021-10-21 19:09:24,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-10-21 19:09:24,123 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 4.948453608247423) internal successors, (480), 98 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 480 [2021-10-21 19:09:24,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:24,126 INFO L225 Difference]: With dead ends: 488 [2021-10-21 19:09:24,126 INFO L226 Difference]: Without dead ends: 487 [2021-10-21 19:09:24,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2914.5ms TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2021-10-21 19:09:24,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2021-10-21 19:09:24,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 486. [2021-10-21 19:09:24,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 1.002061855670103) internal successors, (486), 485 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 486 transitions. [2021-10-21 19:09:24,136 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 486 transitions. Word has length 480 [2021-10-21 19:09:24,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:24,136 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 486 transitions. [2021-10-21 19:09:24,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 4.948453608247423) internal successors, (480), 98 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 486 transitions. [2021-10-21 19:09:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2021-10-21 19:09:24,139 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:24,140 INFO L512 BasicCegarLoop]: trace histogram [97, 96, 96, 96, 96, 1, 1, 1, 1] [2021-10-21 19:09:24,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2021-10-21 19:09:24,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2021-10-21 19:09:24,345 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:09:24,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:24,345 INFO L82 PathProgramCache]: Analyzing trace with hash -928463451, now seen corresponding path program 96 times [2021-10-21 19:09:24,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:24,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942935050] [2021-10-21 19:09:24,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:24,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:27,615 INFO L134 CoverageAnalysis]: Checked inductivity of 22992 backedges. 0 proven. 22992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:27,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:27,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942935050] [2021-10-21 19:09:27,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942935050] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:09:27,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202213368] [2021-10-21 19:09:27,615 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:09:27,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:09:27,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:09:27,616 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:09:27,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-10-21 19:09:34,870 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 97 check-sat command(s) [2021-10-21 19:09:34,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:09:34,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 98 conjunts are in the unsatisfiable core [2021-10-21 19:09:34,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:09:36,021 INFO L134 CoverageAnalysis]: Checked inductivity of 22992 backedges. 0 proven. 22992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:36,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202213368] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:09:36,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:09:36,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 98 [2021-10-21 19:09:36,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725777831] [2021-10-21 19:09:36,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2021-10-21 19:09:36,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:36,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-10-21 19:09:36,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2021-10-21 19:09:36,023 INFO L87 Difference]: Start difference. First operand 486 states and 486 transitions. Second operand has 99 states, 98 states have (on average 4.948979591836735) internal successors, (485), 99 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:36,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:36,312 INFO L93 Difference]: Finished difference Result 493 states and 493 transitions. [2021-10-21 19:09:36,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-10-21 19:09:36,313 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 98 states have (on average 4.948979591836735) internal successors, (485), 99 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 485 [2021-10-21 19:09:36,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:36,315 INFO L225 Difference]: With dead ends: 493 [2021-10-21 19:09:36,315 INFO L226 Difference]: Without dead ends: 492 [2021-10-21 19:09:36,316 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2978.7ms TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2021-10-21 19:09:36,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-10-21 19:09:36,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 491. [2021-10-21 19:09:36,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.0020408163265306) internal successors, (491), 490 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:36,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 491 transitions. [2021-10-21 19:09:36,324 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 491 transitions. Word has length 485 [2021-10-21 19:09:36,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:36,324 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 491 transitions. [2021-10-21 19:09:36,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 98 states have (on average 4.948979591836735) internal successors, (485), 99 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:36,324 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 491 transitions. [2021-10-21 19:09:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-10-21 19:09:36,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:36,326 INFO L512 BasicCegarLoop]: trace histogram [98, 97, 97, 97, 97, 1, 1, 1, 1] [2021-10-21 19:09:36,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2021-10-21 19:09:36,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-10-21 19:09:36,527 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:09:36,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:36,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1485634447, now seen corresponding path program 97 times [2021-10-21 19:09:36,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:36,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735972599] [2021-10-21 19:09:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:36,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:40,029 INFO L134 CoverageAnalysis]: Checked inductivity of 23474 backedges. 0 proven. 23474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:40,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:40,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735972599] [2021-10-21 19:09:40,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735972599] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:09:40,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763180613] [2021-10-21 19:09:40,030 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:09:40,030 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:09:40,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:09:40,030 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:09:40,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-10-21 19:09:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:47,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1106 conjuncts, 99 conjunts are in the unsatisfiable core [2021-10-21 19:09:47,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:09:48,264 INFO L134 CoverageAnalysis]: Checked inductivity of 23474 backedges. 0 proven. 23474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:48,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763180613] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:09:48,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:09:48,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99] total 99 [2021-10-21 19:09:48,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346368770] [2021-10-21 19:09:48,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2021-10-21 19:09:48,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:48,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-10-21 19:09:48,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2021-10-21 19:09:48,266 INFO L87 Difference]: Start difference. First operand 491 states and 491 transitions. Second operand has 100 states, 99 states have (on average 4.94949494949495) internal successors, (490), 100 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:48,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:48,530 INFO L93 Difference]: Finished difference Result 498 states and 498 transitions. [2021-10-21 19:09:48,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-10-21 19:09:48,530 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 99 states have (on average 4.94949494949495) internal successors, (490), 100 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 490 [2021-10-21 19:09:48,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:48,532 INFO L225 Difference]: With dead ends: 498 [2021-10-21 19:09:48,532 INFO L226 Difference]: Without dead ends: 497 [2021-10-21 19:09:48,532 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3214.6ms TimeCoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2021-10-21 19:09:48,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2021-10-21 19:09:48,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 496. [2021-10-21 19:09:48,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 495 states have (on average 1.002020202020202) internal successors, (496), 495 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 496 transitions. [2021-10-21 19:09:48,538 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 496 transitions. Word has length 490 [2021-10-21 19:09:48,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:48,538 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 496 transitions. [2021-10-21 19:09:48,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 99 states have (on average 4.94949494949495) internal successors, (490), 100 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 496 transitions. [2021-10-21 19:09:48,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-10-21 19:09:48,541 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:48,541 INFO L512 BasicCegarLoop]: trace histogram [99, 98, 98, 98, 98, 1, 1, 1, 1] [2021-10-21 19:09:48,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2021-10-21 19:09:48,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-10-21 19:09:48,741 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:09:48,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:48,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1619253979, now seen corresponding path program 98 times [2021-10-21 19:09:48,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:48,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822532439] [2021-10-21 19:09:48,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:48,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:52,122 INFO L134 CoverageAnalysis]: Checked inductivity of 23961 backedges. 0 proven. 23961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:52,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:52,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822532439] [2021-10-21 19:09:52,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822532439] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:09:52,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564013490] [2021-10-21 19:09:52,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:09:52,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:09:52,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:09:52,124 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:09:52,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-10-21 19:09:59,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:09:59,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:09:59,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 100 conjunts are in the unsatisfiable core [2021-10-21 19:09:59,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:00,596 INFO L134 CoverageAnalysis]: Checked inductivity of 23961 backedges. 0 proven. 23961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:00,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564013490] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:10:00,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:10:00,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100] total 100 [2021-10-21 19:10:00,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327350318] [2021-10-21 19:10:00,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2021-10-21 19:10:00,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:10:00,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2021-10-21 19:10:00,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2021-10-21 19:10:00,599 INFO L87 Difference]: Start difference. First operand 496 states and 496 transitions. Second operand has 101 states, 100 states have (on average 4.95) internal successors, (495), 101 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:10:00,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:00,883 INFO L93 Difference]: Finished difference Result 503 states and 503 transitions. [2021-10-21 19:10:00,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-10-21 19:10:00,883 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 4.95) internal successors, (495), 101 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 495 [2021-10-21 19:10:00,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:00,885 INFO L225 Difference]: With dead ends: 503 [2021-10-21 19:10:00,885 INFO L226 Difference]: Without dead ends: 502 [2021-10-21 19:10:00,885 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3083.7ms TimeCoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2021-10-21 19:10:00,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-10-21 19:10:00,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 501. [2021-10-21 19:10:00,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.002) internal successors, (501), 500 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:10:00,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 501 transitions. [2021-10-21 19:10:00,891 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 501 transitions. Word has length 495 [2021-10-21 19:10:00,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:00,891 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 501 transitions. [2021-10-21 19:10:00,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 4.95) internal successors, (495), 101 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:10:00,891 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 501 transitions. [2021-10-21 19:10:00,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-10-21 19:10:00,893 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:00,894 INFO L512 BasicCegarLoop]: trace histogram [100, 99, 99, 99, 99, 1, 1, 1, 1] [2021-10-21 19:10:00,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:01,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-10-21 19:10:01,094 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:10:01,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:01,095 INFO L82 PathProgramCache]: Analyzing trace with hash 323966193, now seen corresponding path program 99 times [2021-10-21 19:10:01,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:10:01,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543875248] [2021-10-21 19:10:01,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:01,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:10:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 24453 backedges. 0 proven. 24453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:04,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:10:04,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543875248] [2021-10-21 19:10:04,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543875248] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:10:04,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640959669] [2021-10-21 19:10:04,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:10:04,784 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:10:04,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:10:04,785 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:10:04,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2021-10-21 19:10:12,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 100 check-sat command(s) [2021-10-21 19:10:12,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:10:12,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 101 conjunts are in the unsatisfiable core [2021-10-21 19:10:12,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:13,783 INFO L134 CoverageAnalysis]: Checked inductivity of 24453 backedges. 0 proven. 24453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:13,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640959669] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:10:13,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:10:13,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101] total 101 [2021-10-21 19:10:13,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142898705] [2021-10-21 19:10:13,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2021-10-21 19:10:13,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:10:13,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-10-21 19:10:13,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2021-10-21 19:10:13,786 INFO L87 Difference]: Start difference. First operand 501 states and 501 transitions. Second operand has 102 states, 101 states have (on average 4.9504950495049505) internal successors, (500), 102 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:10:14,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:14,105 INFO L93 Difference]: Finished difference Result 508 states and 508 transitions. [2021-10-21 19:10:14,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-10-21 19:10:14,105 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 101 states have (on average 4.9504950495049505) internal successors, (500), 102 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 500 [2021-10-21 19:10:14,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:14,106 INFO L225 Difference]: With dead ends: 508 [2021-10-21 19:10:14,106 INFO L226 Difference]: Without dead ends: 507 [2021-10-21 19:10:14,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3191.3ms TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2021-10-21 19:10:14,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-10-21 19:10:14,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 506. [2021-10-21 19:10:14,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.001980198019802) internal successors, (506), 505 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:10:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 506 transitions. [2021-10-21 19:10:14,113 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 506 transitions. Word has length 500 [2021-10-21 19:10:14,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:14,113 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 506 transitions. [2021-10-21 19:10:14,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 101 states have (on average 4.9504950495049505) internal successors, (500), 102 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:10:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 506 transitions. [2021-10-21 19:10:14,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-10-21 19:10:14,115 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:14,115 INFO L512 BasicCegarLoop]: trace histogram [101, 100, 100, 100, 100, 1, 1, 1, 1] [2021-10-21 19:10:14,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2021-10-21 19:10:14,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-10-21 19:10:14,316 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:10:14,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:14,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1690426203, now seen corresponding path program 100 times [2021-10-21 19:10:14,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:10:14,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542289900] [2021-10-21 19:10:14,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:14,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:10:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:18,191 INFO L134 CoverageAnalysis]: Checked inductivity of 24950 backedges. 0 proven. 24950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:18,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:10:18,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542289900] [2021-10-21 19:10:18,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542289900] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:10:18,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213738552] [2021-10-21 19:10:18,191 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:10:18,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:10:18,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:10:18,192 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:10:18,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2021-10-21 19:10:25,773 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:10:25,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:10:25,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 102 conjunts are in the unsatisfiable core [2021-10-21 19:10:25,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:27,025 INFO L134 CoverageAnalysis]: Checked inductivity of 24950 backedges. 0 proven. 24950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:27,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213738552] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:10:27,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:10:27,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 102 [2021-10-21 19:10:27,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928169645] [2021-10-21 19:10:27,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2021-10-21 19:10:27,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:10:27,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-10-21 19:10:27,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2021-10-21 19:10:27,028 INFO L87 Difference]: Start difference. First operand 506 states and 506 transitions. Second operand has 103 states, 102 states have (on average 4.950980392156863) internal successors, (505), 103 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:10:27,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:10:27,421 INFO L93 Difference]: Finished difference Result 513 states and 513 transitions. [2021-10-21 19:10:27,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-10-21 19:10:27,421 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 102 states have (on average 4.950980392156863) internal successors, (505), 103 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 505 [2021-10-21 19:10:27,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:10:27,423 INFO L225 Difference]: With dead ends: 513 [2021-10-21 19:10:27,423 INFO L226 Difference]: Without dead ends: 512 [2021-10-21 19:10:27,424 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3385.6ms TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2021-10-21 19:10:27,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-10-21 19:10:27,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 511. [2021-10-21 19:10:27,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 510 states have (on average 1.0019607843137255) internal successors, (511), 510 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:10:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 511 transitions. [2021-10-21 19:10:27,431 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 511 transitions. Word has length 505 [2021-10-21 19:10:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:10:27,431 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 511 transitions. [2021-10-21 19:10:27,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 102 states have (on average 4.950980392156863) internal successors, (505), 103 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:10:27,431 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 511 transitions. [2021-10-21 19:10:27,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-10-21 19:10:27,434 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:10:27,434 INFO L512 BasicCegarLoop]: trace histogram [102, 101, 101, 101, 101, 1, 1, 1, 1] [2021-10-21 19:10:27,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2021-10-21 19:10:27,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2021-10-21 19:10:27,635 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:10:27,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:10:27,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1180763505, now seen corresponding path program 101 times [2021-10-21 19:10:27,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:10:27,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716322595] [2021-10-21 19:10:27,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:10:27,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:10:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:10:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 25452 backedges. 0 proven. 25452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:10:31,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:10:31,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716322595] [2021-10-21 19:10:31,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716322595] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:10:31,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823233171] [2021-10-21 19:10:31,565 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:10:31,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:10:31,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:10:31,566 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:10:31,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2021-10-21 19:10:39,491 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 102 check-sat command(s) [2021-10-21 19:10:39,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:10:39,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 202 conjunts are in the unsatisfiable core [2021-10-21 19:10:39,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:10:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 25452 backedges. 25451 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:10:57,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823233171] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:10:57,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:10:57,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [203] imperfect sequences [103] total 305 [2021-10-21 19:10:57,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379986372] [2021-10-21 19:10:57,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2021-10-21 19:10:57,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:10:57,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2021-10-21 19:10:57,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15758, Invalid=76962, Unknown=0, NotChecked=0, Total=92720 [2021-10-21 19:10:57,679 INFO L87 Difference]: Start difference. First operand 511 states and 511 transitions. Second operand has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:05,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:11:05,953 INFO L93 Difference]: Finished difference Result 511 states and 511 transitions. [2021-10-21 19:11:05,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2021-10-21 19:11:05,953 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 510 [2021-10-21 19:11:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:11:05,954 INFO L225 Difference]: With dead ends: 511 [2021-10-21 19:11:05,954 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:11:05,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 403 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40002 ImplicationChecksByTransitivity, 25761.4ms TimeCoverageRelationStatistics Valid=31008, Invalid=132612, Unknown=0, NotChecked=0, Total=163620 [2021-10-21 19:11:05,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:11:05,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:11:05,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:05,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:11:05,963 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 510 [2021-10-21 19:11:05,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:11:05,963 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:11:05,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:11:05,964 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:11:05,964 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:11:05,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:11:05,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:11:05,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:11:05,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:11:06,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2021-10-21 19:11:06,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:11:06,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:11:06,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:11:06,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:11:08,734 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-21 19:11:08,734 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:11:08,734 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-21 19:11:08,734 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-10-21 19:11:08,734 INFO L857 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-10-21 19:11:08,736 INFO L853 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~j~0))) (or (and (<= 41 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 82) .cse0) (and (<= 45 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 90) .cse0) (and (<= ULTIMATE.start_main_~j~0 172) (<= 86 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 198) (<= 99 ULTIMATE.start_main_~i~0) .cse0) (and (<= 38 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 76) .cse0) (and (<= 88 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 176) .cse0) (and (<= ULTIMATE.start_main_~j~0 180) (<= 90 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 116) (<= 58 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 168) (<= 84 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 92) .cse0 (<= 46 ULTIMATE.start_main_~i~0)) (and (<= 6 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 12) .cse0) (and (<= 66 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 132) .cse0) (and (<= ULTIMATE.start_main_~j~0 100) (<= 50 ULTIMATE.start_main_~i~0) .cse0) (and (<= 75 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 150) .cse0) (and (<= ULTIMATE.start_main_~j~0 138) (<= 69 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 156) (<= 78 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 108) (<= 54 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 20) (<= 10 ULTIMATE.start_main_~i~0) .cse0) (and (<= 27 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 54) .cse0) (and (<= ULTIMATE.start_main_~j~0 188) (<= 94 ULTIMATE.start_main_~i~0) .cse0) (and (<= 49 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 98) .cse0) (and (<= ULTIMATE.start_main_~j~0 128) (<= 64 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 152) (<= 76 ULTIMATE.start_main_~i~0) .cse0) (and (<= 59 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 118) .cse0) (and (<= 34 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 68) .cse0) (and (<= ULTIMATE.start_main_~j~0 38) (<= 19 ULTIMATE.start_main_~i~0) .cse0) (and (<= 87 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 174) .cse0) (and (<= ULTIMATE.start_main_~j~0 104) (<= 52 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 58) (<= 29 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 96) (<= 48 ULTIMATE.start_main_~i~0) .cse0) (and (<= 56 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 112) .cse0) (and .cse0 (<= ULTIMATE.start_main_~j~0 192) (<= 96 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 102) (<= 51 ULTIMATE.start_main_~i~0) .cse0) (and (<= 5 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 10) .cse0) (and (<= 65 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 130) .cse0) (and (<= ULTIMATE.start_main_~j~0 88) (<= 44 ULTIMATE.start_main_~i~0) .cse0) (and (<= 77 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 154) .cse0) (and (<= ULTIMATE.start_main_~j~0 64) .cse0 (<= 32 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 66) (<= 33 ULTIMATE.start_main_~i~0) .cse0) (and (<= 36 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 72) .cse0) (and (<= ULTIMATE.start_main_~j~0 44) (<= 22 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 0) (= ULTIMATE.start_main_~i~0 0) .cse0) (and (<= 28 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 56) .cse0) (and (<= ULTIMATE.start_main_~j~0 32) .cse0 (<= 16 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 22) (<= 11 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 178) (<= 89 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 52) (<= 26 ULTIMATE.start_main_~i~0) .cse0) (and (<= 8 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 16) .cse0) (and (<= ULTIMATE.start_main_~j~0 86) (<= 43 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 80) (<= 40 ULTIMATE.start_main_~i~0) .cse0) (and (<= 39 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 78) .cse0) (and (<= 70 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 140) .cse0) (and (<= ULTIMATE.start_main_~j~0 186) (<= 93 ULTIMATE.start_main_~i~0) .cse0) (and (<= 4 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 8) .cse0) (and (<= 14 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 28) .cse0) (and (<= 81 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 162) .cse0) (and (<= 1 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 2) .cse0) (and (<= 60 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 120) .cse0) (and (<= ULTIMATE.start_main_~j~0 46) (<= 23 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 122) (<= 61 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 194) (<= 97 ULTIMATE.start_main_~i~0) .cse0) (and (<= 98 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 196)) (and (<= 57 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 114) .cse0) (and (<= ULTIMATE.start_main_~j~0 110) (<= 55 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 144) (<= 72 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 84) (<= 42 ULTIMATE.start_main_~i~0) .cse0) (and (<= 3 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 6) .cse0) (and (<= 30 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 60) .cse0) (and (<= ULTIMATE.start_main_~j~0 62) (<= 31 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 24) (<= 12 ULTIMATE.start_main_~i~0) .cse0) (and (<= 73 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 146) .cse0) (and (<= 15 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 30) .cse0) (and (<= 79 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 158) .cse0) (and (<= ULTIMATE.start_main_~j~0 42) (<= 21 ULTIMATE.start_main_~i~0) .cse0) (and (<= 82 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 164) .cse0) (and (<= ULTIMATE.start_main_~j~0 106) (<= 53 ULTIMATE.start_main_~i~0) .cse0) (and (<= 91 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 182) .cse0) (and (<= ULTIMATE.start_main_~j~0 184) (<= 92 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 126) (<= 63 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 74) (<= 37 ULTIMATE.start_main_~i~0) .cse0) (and (<= 47 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 94) .cse0) (and (<= 9 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 18) .cse0) (and (<= 62 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 124) .cse0) (and (<= ULTIMATE.start_main_~j~0 142) (<= 71 ULTIMATE.start_main_~i~0) .cse0) (and (<= 95 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 190) .cse0) (and (<= 100 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 200) .cse0) (and (<= 80 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 160) .cse0) (and (<= ULTIMATE.start_main_~j~0 26) (<= 13 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 14) (<= 7 ULTIMATE.start_main_~i~0) .cse0) (and (<= 83 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 166) .cse0) (and (<= ULTIMATE.start_main_~j~0 170) (<= 85 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 34) (<= 17 ULTIMATE.start_main_~i~0) .cse0) (and (<= 2 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 4) .cse0) (and (<= 68 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 136)) (and (<= ULTIMATE.start_main_~j~0 148) (<= 74 ULTIMATE.start_main_~i~0) .cse0) (and (<= 20 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 40) .cse0) (and (<= ULTIMATE.start_main_~j~0 70) (<= 35 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 48) (<= 24 ULTIMATE.start_main_~i~0) .cse0) (and (<= 67 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 134) .cse0) (and (<= 18 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 36) .cse0) (and (<= ULTIMATE.start_main_~j~0 50) (<= 25 ULTIMATE.start_main_~i~0) .cse0))) [2021-10-21 19:11:08,737 INFO L857 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2021-10-21 19:11:08,737 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-21 19:11:08,737 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:11:08,737 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-21 19:11:08,737 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-21 19:11:08,738 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:11:08,738 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:11:08,738 INFO L860 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-10-21 19:11:08,738 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-21 19:11:08,738 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-10-21 19:11:08,738 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-21 19:11:08,738 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-10-21 19:11:08,743 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:11:08,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:11:08 BoogieIcfgContainer [2021-10-21 19:11:08,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:11:08,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:11:08,789 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:11:08,789 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:11:08,790 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:02:06" (3/4) ... [2021-10-21 19:11:08,793 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:11:08,803 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-21 19:11:08,804 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:11:08,804 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:11:08,804 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:11:08,860 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:11:08,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:11:08,862 INFO L168 Benchmark]: Toolchain (without parser) took 543126.62 ms. Allocated memory was 98.6 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 63.5 MB in the beginning and 473.5 MB in the end (delta: -410.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. [2021-10-21 19:11:08,863 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 67.9 MB in the beginning and 67.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:11:08,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.03 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 63.5 MB in the beginning and 107.3 MB in the end (delta: -43.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:08,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.49 ms. Allocated memory is still 132.1 MB. Free memory was 107.3 MB in the beginning and 105.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:08,864 INFO L168 Benchmark]: Boogie Preprocessor took 20.08 ms. Allocated memory is still 132.1 MB. Free memory was 105.7 MB in the beginning and 105.2 MB in the end (delta: 520.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:11:08,864 INFO L168 Benchmark]: RCFGBuilder took 307.90 ms. Allocated memory is still 132.1 MB. Free memory was 104.4 MB in the beginning and 95.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:08,864 INFO L168 Benchmark]: TraceAbstraction took 542403.30 ms. Allocated memory was 132.1 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 95.1 MB in the beginning and 476.6 MB in the end (delta: -381.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 16.1 GB. [2021-10-21 19:11:08,865 INFO L168 Benchmark]: Witness Printer took 71.92 ms. Allocated memory is still 2.1 GB. Free memory was 476.6 MB in the beginning and 473.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:11:08,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 67.9 MB in the beginning and 67.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.03 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 63.5 MB in the beginning and 107.3 MB in the end (delta: -43.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.49 ms. Allocated memory is still 132.1 MB. Free memory was 107.3 MB in the beginning and 105.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.08 ms. Allocated memory is still 132.1 MB. Free memory was 105.7 MB in the beginning and 105.2 MB in the end (delta: 520.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 307.90 ms. Allocated memory is still 132.1 MB. Free memory was 104.4 MB in the beginning and 95.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 542403.30 ms. Allocated memory was 132.1 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 95.1 MB in the beginning and 476.6 MB in the end (delta: -381.5 MB). Peak memory consumption was 1.8 GB. Max. memory is 16.1 GB. * Witness Printer took 71.92 ms. Allocated memory is still 2.1 GB. Free memory was 476.6 MB in the beginning and 473.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 542248.1ms, OverallIterations: 106, TraceHistogramMax: 102, EmptinessCheckTime: 181.3ms, AutomataDifference: 23397.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2546.3ms, InitialAbstractionConstructionTime: 10.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 848 SDtfs, 5377 SDslu, 16858 SDs, 0 SdLazy, 15298 SolverSat, 418 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8453.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31644 GetRequests, 26075 SyntacticMatches, 0 SemanticMatches, 5569 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40003 ImplicationChecksByTransitivity, 141754.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=105, InterpolantAutomatonStates: 5573, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 702.1ms AutomataMinimizationTime, 106 MinimizatonAttempts, 101 StatesRemovedByMinimization, 101 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 105 NumberOfFragments, 1012 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 207.1ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 303 FormulaSimplificationTreeSizeReductionInter, 2318.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1576.3ms SsaConstructionTime, 14004.0ms SatisfiabilityAnalysisTime, 213007.8ms InterpolantComputationTime, 52576 NumberOfCodeBlocks, 52576 NumberOfCodeBlocksAsserted, 2826 NumberOfCheckSat, 52368 ConstructedInterpolants, 0 QuantifiedInterpolants, 156248 SizeOfPredicates, 102 NumberOfNonLiveVariables, 60657 ConjunctsInSsa, 5457 ConjunctsInUnsatCore, 208 InterpolantComputations, 6 PerfectInterpolantSequences, 25461/1737618 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((41 <= i && j <= 82) && 0 <= j) || ((45 <= i && j <= 90) && 0 <= j)) || ((j <= 172 && 86 <= i) && 0 <= j)) || ((j <= 198 && 99 <= i) && 0 <= j)) || ((38 <= i && j <= 76) && 0 <= j)) || ((88 <= i && j <= 176) && 0 <= j)) || ((j <= 180 && 90 <= i) && 0 <= j)) || ((j <= 116 && 58 <= i) && 0 <= j)) || ((j <= 168 && 84 <= i) && 0 <= j)) || ((j <= 92 && 0 <= j) && 46 <= i)) || ((6 <= i && j <= 12) && 0 <= j)) || ((66 <= i && j <= 132) && 0 <= j)) || ((j <= 100 && 50 <= i) && 0 <= j)) || ((75 <= i && j <= 150) && 0 <= j)) || ((j <= 138 && 69 <= i) && 0 <= j)) || ((j <= 156 && 78 <= i) && 0 <= j)) || ((j <= 108 && 54 <= i) && 0 <= j)) || ((j <= 20 && 10 <= i) && 0 <= j)) || ((27 <= i && j <= 54) && 0 <= j)) || ((j <= 188 && 94 <= i) && 0 <= j)) || ((49 <= i && j <= 98) && 0 <= j)) || ((j <= 128 && 64 <= i) && 0 <= j)) || ((j <= 152 && 76 <= i) && 0 <= j)) || ((59 <= i && j <= 118) && 0 <= j)) || ((34 <= i && j <= 68) && 0 <= j)) || ((j <= 38 && 19 <= i) && 0 <= j)) || ((87 <= i && j <= 174) && 0 <= j)) || ((j <= 104 && 52 <= i) && 0 <= j)) || ((j <= 58 && 29 <= i) && 0 <= j)) || ((j <= 96 && 48 <= i) && 0 <= j)) || ((56 <= i && j <= 112) && 0 <= j)) || ((0 <= j && j <= 192) && 96 <= i)) || ((j <= 102 && 51 <= i) && 0 <= j)) || ((5 <= i && j <= 10) && 0 <= j)) || ((65 <= i && j <= 130) && 0 <= j)) || ((j <= 88 && 44 <= i) && 0 <= j)) || ((77 <= i && j <= 154) && 0 <= j)) || ((j <= 64 && 0 <= j) && 32 <= i)) || ((j <= 66 && 33 <= i) && 0 <= j)) || ((36 <= i && j <= 72) && 0 <= j)) || ((j <= 44 && 22 <= i) && 0 <= j)) || ((j <= 0 && i == 0) && 0 <= j)) || ((28 <= i && j <= 56) && 0 <= j)) || ((j <= 32 && 0 <= j) && 16 <= i)) || ((j <= 22 && 11 <= i) && 0 <= j)) || ((j <= 178 && 89 <= i) && 0 <= j)) || ((j <= 52 && 26 <= i) && 0 <= j)) || ((8 <= i && j <= 16) && 0 <= j)) || ((j <= 86 && 43 <= i) && 0 <= j)) || ((j <= 80 && 40 <= i) && 0 <= j)) || ((39 <= i && j <= 78) && 0 <= j)) || ((70 <= i && j <= 140) && 0 <= j)) || ((j <= 186 && 93 <= i) && 0 <= j)) || ((4 <= i && j <= 8) && 0 <= j)) || ((14 <= i && j <= 28) && 0 <= j)) || ((81 <= i && j <= 162) && 0 <= j)) || ((1 <= i && j <= 2) && 0 <= j)) || ((60 <= i && j <= 120) && 0 <= j)) || ((j <= 46 && 23 <= i) && 0 <= j)) || ((j <= 122 && 61 <= i) && 0 <= j)) || ((j <= 194 && 97 <= i) && 0 <= j)) || ((98 <= i && 0 <= j) && j <= 196)) || ((57 <= i && j <= 114) && 0 <= j)) || ((j <= 110 && 55 <= i) && 0 <= j)) || ((j <= 144 && 72 <= i) && 0 <= j)) || ((j <= 84 && 42 <= i) && 0 <= j)) || ((3 <= i && j <= 6) && 0 <= j)) || ((30 <= i && j <= 60) && 0 <= j)) || ((j <= 62 && 31 <= i) && 0 <= j)) || ((j <= 24 && 12 <= i) && 0 <= j)) || ((73 <= i && j <= 146) && 0 <= j)) || ((15 <= i && j <= 30) && 0 <= j)) || ((79 <= i && j <= 158) && 0 <= j)) || ((j <= 42 && 21 <= i) && 0 <= j)) || ((82 <= i && j <= 164) && 0 <= j)) || ((j <= 106 && 53 <= i) && 0 <= j)) || ((91 <= i && j <= 182) && 0 <= j)) || ((j <= 184 && 92 <= i) && 0 <= j)) || ((j <= 126 && 63 <= i) && 0 <= j)) || ((j <= 74 && 37 <= i) && 0 <= j)) || ((47 <= i && j <= 94) && 0 <= j)) || ((9 <= i && j <= 18) && 0 <= j)) || ((62 <= i && j <= 124) && 0 <= j)) || ((j <= 142 && 71 <= i) && 0 <= j)) || ((95 <= i && j <= 190) && 0 <= j)) || ((100 <= i && j <= 200) && 0 <= j)) || ((80 <= i && j <= 160) && 0 <= j)) || ((j <= 26 && 13 <= i) && 0 <= j)) || ((j <= 14 && 7 <= i) && 0 <= j)) || ((83 <= i && j <= 166) && 0 <= j)) || ((j <= 170 && 85 <= i) && 0 <= j)) || ((j <= 34 && 17 <= i) && 0 <= j)) || ((2 <= i && j <= 4) && 0 <= j)) || ((68 <= i && 0 <= j) && j <= 136)) || ((j <= 148 && 74 <= i) && 0 <= j)) || ((20 <= i && j <= 40) && 0 <= j)) || ((j <= 70 && 35 <= i) && 0 <= j)) || ((j <= 48 && 24 <= i) && 0 <= j)) || ((67 <= i && j <= 134) && 0 <= j)) || ((18 <= i && j <= 36) && 0 <= j)) || ((j <= 50 && 25 <= i) && 0 <= j) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:11:08,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e8e7f09-c395-485d-905f-f9d60bd9f990/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...