./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/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_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/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 64bit --witnessprinter.graph.data.programhash ef201cd54bcdc81a1760f6e60d88bd9cc04c6c00c0d7306b10fb5fb0b61b4e06 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:08:41,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:08:41,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:08:41,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:08:41,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:08:41,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:08:41,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:08:41,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:08:41,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:08:41,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:08:41,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:08:41,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:08:41,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:08:41,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:08:41,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:08:41,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:08:41,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:08:41,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:08:41,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:08:41,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:08:41,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:08:41,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:08:41,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:08:41,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:08:41,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:08:41,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:08:41,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:08:41,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:08:41,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:08:41,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:08:41,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:08:41,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:08:41,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:08:41,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:08:41,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:08:41,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:08:41,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:08:41,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:08:41,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:08:41,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:08:41,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:08:41,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-21 20:08:41,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:08:41,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:08:41,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:08:41,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:08:41,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:08:41,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:08:41,522 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:08:41,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:08:41,523 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:08:41,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:08:41,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:08:41,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:08:41,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:08:41,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:08:41,524 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-21 20:08:41,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:08:41,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:08:41,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:08:41,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:08:41,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:08:41,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:08:41,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:08:41,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:08:41,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:08:41,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:08:41,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:08:41,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:08:41,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:08:41,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:08:41,527 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_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef201cd54bcdc81a1760f6e60d88bd9cc04c6c00c0d7306b10fb5fb0b61b4e06 [2021-10-21 20:08:41,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:08:41,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:08:41,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:08:41,811 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:08:41,812 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:08:41,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2021-10-21 20:08:41,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/data/4d3210695/15f55b0101ca4ad58eadea9469eecb50/FLAG8e8d5a599 [2021-10-21 20:08:42,371 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:08:42,371 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2021-10-21 20:08:42,377 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/data/4d3210695/15f55b0101ca4ad58eadea9469eecb50/FLAG8e8d5a599 [2021-10-21 20:08:42,762 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/data/4d3210695/15f55b0101ca4ad58eadea9469eecb50 [2021-10-21 20:08:42,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:08:42,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:08:42,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:08:42,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:08:42,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:08:42,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:08:42" (1/1) ... [2021-10-21 20:08:42,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4515cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:42, skipping insertion in model container [2021-10-21 20:08:42,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:08:42" (1/1) ... [2021-10-21 20:08:42,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:08:42,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:08:42,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:08:43,002 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:08:43,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:08:43,030 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:08:43,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43 WrapperNode [2021-10-21 20:08:43,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:08:43,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:08:43,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:08:43,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:08:43,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (1/1) ... [2021-10-21 20:08:43,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (1/1) ... [2021-10-21 20:08:43,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:08:43,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:08:43,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:08:43,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:08:43,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (1/1) ... [2021-10-21 20:08:43,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (1/1) ... [2021-10-21 20:08:43,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (1/1) ... [2021-10-21 20:08:43,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (1/1) ... [2021-10-21 20:08:43,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (1/1) ... [2021-10-21 20:08:43,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (1/1) ... [2021-10-21 20:08:43,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (1/1) ... [2021-10-21 20:08:43,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:08:43,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:08:43,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:08:43,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:08:43,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (1/1) ... [2021-10-21 20:08:43,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:08:43,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:43,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:08:43,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:08:43,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:08:43,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:08:43,339 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:08:43,339 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 20:08:43,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:08:43 BoogieIcfgContainer [2021-10-21 20:08:43,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:08:43,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:08:43,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:08:43,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:08:43,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:08:42" (1/3) ... [2021-10-21 20:08:43,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bd1041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:08:43, skipping insertion in model container [2021-10-21 20:08:43,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:08:43" (2/3) ... [2021-10-21 20:08:43,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bd1041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:08:43, skipping insertion in model container [2021-10-21 20:08:43,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:08:43" (3/3) ... [2021-10-21 20:08:43,350 INFO L111 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2021-10-21 20:08:43,355 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:08:43,355 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-21 20:08:43,401 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:08:43,408 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 20:08:43,408 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-10-21 20:08:43,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.85) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:43,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-21 20:08:43,426 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:43,427 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-21 20:08:43,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:43,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:43,432 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-21 20:08:43,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:43,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288297217] [2021-10-21 20:08:43,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:43,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:43,561 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 20:08:43,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:43,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288297217] [2021-10-21 20:08:43,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288297217] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:08:43,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:08:43,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 20:08:43,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101852287] [2021-10-21 20:08:43,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:08:43,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:43,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:08:43,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:43,585 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.85) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:43,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:43,622 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2021-10-21 20:08:43,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:08:43,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2021-10-21 20:08:43,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:43,634 INFO L225 Difference]: With dead ends: 43 [2021-10-21 20:08:43,634 INFO L226 Difference]: Without dead ends: 30 [2021-10-21 20:08:43,637 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:43,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-21 20:08:43,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2021-10-21 20:08:43,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:43,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2021-10-21 20:08:43,670 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 3 [2021-10-21 20:08:43,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:43,671 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2021-10-21 20:08:43,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:43,685 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2021-10-21 20:08:43,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 20:08:43,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:43,686 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 20:08:43,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:08:43,687 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:43,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:43,688 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-10-21 20:08:43,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:43,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877465827] [2021-10-21 20:08:43,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:43,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:43,710 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 20:08:43,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:43,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877465827] [2021-10-21 20:08:43,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877465827] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:08:43,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:08:43,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 20:08:43,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772769326] [2021-10-21 20:08:43,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:08:43,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:43,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:08:43,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:43,729 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:43,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:43,741 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-10-21 20:08:43,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:08:43,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2021-10-21 20:08:43,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:43,743 INFO L225 Difference]: With dead ends: 29 [2021-10-21 20:08:43,743 INFO L226 Difference]: Without dead ends: 28 [2021-10-21 20:08:43,744 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:43,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-21 20:08:43,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-21 20:08:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:43,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-10-21 20:08:43,749 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 4 [2021-10-21 20:08:43,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:43,749 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-10-21 20:08:43,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:43,750 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-10-21 20:08:43,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 20:08:43,750 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:43,751 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:43,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:08:43,751 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:43,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:43,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845466, now seen corresponding path program 1 times [2021-10-21 20:08:43,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:43,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524884251] [2021-10-21 20:08:43,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:43,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:43,781 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 20:08:43,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:43,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524884251] [2021-10-21 20:08:43,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524884251] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:08:43,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:08:43,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 20:08:43,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795135572] [2021-10-21 20:08:43,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:08:43,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:43,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:08:43,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:43,785 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 20:08:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:43,817 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2021-10-21 20:08:43,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:08:43,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 20:08:43,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:43,819 INFO L225 Difference]: With dead ends: 51 [2021-10-21 20:08:43,820 INFO L226 Difference]: Without dead ends: 49 [2021-10-21 20:08:43,820 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:43,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-21 20:08:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-10-21 20:08:43,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.7352941176470589) internal successors, (59), 42 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:43,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2021-10-21 20:08:43,829 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 7 [2021-10-21 20:08:43,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:43,830 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2021-10-21 20:08:43,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 20:08:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2021-10-21 20:08:43,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-21 20:08:43,831 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:43,831 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-21 20:08:43,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 20:08:43,832 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:43,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:43,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1366808307, now seen corresponding path program 1 times [2021-10-21 20:08:43,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:43,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269619601] [2021-10-21 20:08:43,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:43,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:43,870 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 20:08:43,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:43,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269619601] [2021-10-21 20:08:43,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269619601] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:43,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215571880] [2021-10-21 20:08:43,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:43,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:43,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:43,888 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:43,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 20:08:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:43,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:08:43,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:44,057 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 20:08:44,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215571880] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:44,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:44,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-10-21 20:08:44,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641549171] [2021-10-21 20:08:44,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:08:44,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:44,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:08:44,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:44,066 INFO L87 Difference]: Start difference. First operand 43 states and 59 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 20:08:44,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:44,118 INFO L93 Difference]: Finished difference Result 70 states and 92 transitions. [2021-10-21 20:08:44,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:08:44,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 20:08:44,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:44,123 INFO L225 Difference]: With dead ends: 70 [2021-10-21 20:08:44,124 INFO L226 Difference]: Without dead ends: 69 [2021-10-21 20:08:44,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:44,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-21 20:08:44,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2021-10-21 20:08:44,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.6923076923076923) internal successors, (88), 60 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:44,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2021-10-21 20:08:44,134 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 7 [2021-10-21 20:08:44,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:44,135 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2021-10-21 20:08:44,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 20:08:44,140 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2021-10-21 20:08:44,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-21 20:08:44,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:44,141 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:44,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:44,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:44,368 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:44,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:44,369 INFO L82 PathProgramCache]: Analyzing trace with hash 577463568, now seen corresponding path program 1 times [2021-10-21 20:08:44,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:44,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821065056] [2021-10-21 20:08:44,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:44,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:44,422 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 20:08:44,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:44,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821065056] [2021-10-21 20:08:44,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821065056] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:08:44,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:08:44,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 20:08:44,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184512521] [2021-10-21 20:08:44,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:08:44,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:44,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:08:44,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:44,426 INFO L87 Difference]: Start difference. First operand 61 states and 88 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:44,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:44,475 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2021-10-21 20:08:44,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:08:44,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2021-10-21 20:08:44,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:44,477 INFO L225 Difference]: With dead ends: 101 [2021-10-21 20:08:44,478 INFO L226 Difference]: Without dead ends: 99 [2021-10-21 20:08:44,478 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:44,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-21 20:08:44,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 94. [2021-10-21 20:08:44,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 85 states have (on average 1.6588235294117648) internal successors, (141), 93 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 20:08:44,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 141 transitions. [2021-10-21 20:08:44,505 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 141 transitions. Word has length 8 [2021-10-21 20:08:44,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:44,505 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 141 transitions. [2021-10-21 20:08:44,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:44,506 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 141 transitions. [2021-10-21 20:08:44,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-21 20:08:44,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:44,506 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:44,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 20:08:44,507 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:44,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:44,508 INFO L82 PathProgramCache]: Analyzing trace with hash 721693167, now seen corresponding path program 1 times [2021-10-21 20:08:44,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:44,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925784060] [2021-10-21 20:08:44,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:44,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:44,534 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 20:08:44,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:44,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925784060] [2021-10-21 20:08:44,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925784060] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:08:44,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:08:44,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 20:08:44,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275474933] [2021-10-21 20:08:44,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:08:44,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:44,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:08:44,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:44,537 INFO L87 Difference]: Start difference. First operand 94 states and 141 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:44,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:44,583 INFO L93 Difference]: Finished difference Result 165 states and 252 transitions. [2021-10-21 20:08:44,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:08:44,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2021-10-21 20:08:44,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:44,590 INFO L225 Difference]: With dead ends: 165 [2021-10-21 20:08:44,590 INFO L226 Difference]: Without dead ends: 163 [2021-10-21 20:08:44,593 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:44,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-21 20:08:44,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 154. [2021-10-21 20:08:44,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 145 states have (on average 1.6137931034482758) internal successors, (234), 153 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 234 transitions. [2021-10-21 20:08:44,633 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 234 transitions. Word has length 9 [2021-10-21 20:08:44,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:44,634 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 234 transitions. [2021-10-21 20:08:44,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:44,634 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 234 transitions. [2021-10-21 20:08:44,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 20:08:44,635 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:44,635 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:44,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 20:08:44,636 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:44,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:44,637 INFO L82 PathProgramCache]: Analyzing trace with hash 897651769, now seen corresponding path program 1 times [2021-10-21 20:08:44,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:44,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422585552] [2021-10-21 20:08:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:44,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:44,689 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 20:08:44,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:44,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422585552] [2021-10-21 20:08:44,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422585552] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:08:44,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:08:44,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 20:08:44,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296915965] [2021-10-21 20:08:44,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:08:44,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:44,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:08:44,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:44,695 INFO L87 Difference]: Start difference. First operand 154 states and 234 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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 20:08:44,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:44,749 INFO L93 Difference]: Finished difference Result 283 states and 438 transitions. [2021-10-21 20:08:44,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:08:44,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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 20:08:44,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:44,753 INFO L225 Difference]: With dead ends: 283 [2021-10-21 20:08:44,753 INFO L226 Difference]: Without dead ends: 281 [2021-10-21 20:08:44,754 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:44,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-10-21 20:08:44,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 276. [2021-10-21 20:08:44,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 267 states have (on average 1.5880149812734083) internal successors, (424), 275 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:44,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 424 transitions. [2021-10-21 20:08:44,797 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 424 transitions. Word has length 10 [2021-10-21 20:08:44,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:44,798 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 424 transitions. [2021-10-21 20:08:44,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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 20:08:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 424 transitions. [2021-10-21 20:08:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 20:08:44,800 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:44,800 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1] [2021-10-21 20:08:44,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-21 20:08:44,800 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:44,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:44,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1830298297, now seen corresponding path program 2 times [2021-10-21 20:08:44,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:44,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757906560] [2021-10-21 20:08:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:44,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-21 20:08:44,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:44,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757906560] [2021-10-21 20:08:44,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757906560] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:44,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481070121] [2021-10-21 20:08:44,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:08:44,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:44,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:44,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:44,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 20:08:44,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-21 20:08:44,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:44,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:08:44,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-21 20:08:44,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481070121] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:44,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:44,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-10-21 20:08:44,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102989765] [2021-10-21 20:08:44,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:08:44,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:44,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:08:44,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:44,997 INFO L87 Difference]: Start difference. First operand 276 states and 424 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 20:08:45,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:45,017 INFO L93 Difference]: Finished difference Result 276 states and 424 transitions. [2021-10-21 20:08:45,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:08:45,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 11 [2021-10-21 20:08:45,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:45,020 INFO L225 Difference]: With dead ends: 276 [2021-10-21 20:08:45,020 INFO L226 Difference]: Without dead ends: 275 [2021-10-21 20:08:45,021 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:08:45,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-10-21 20:08:45,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 249. [2021-10-21 20:08:45,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 241 states have (on average 1.5643153526970954) internal successors, (377), 248 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:45,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2021-10-21 20:08:45,045 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 11 [2021-10-21 20:08:45,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:45,046 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2021-10-21 20:08:45,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 20:08:45,046 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2021-10-21 20:08:45,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 20:08:45,047 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:45,047 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-21 20:08:45,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:45,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:45,268 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:45,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:45,268 INFO L82 PathProgramCache]: Analyzing trace with hash -795491305, now seen corresponding path program 1 times [2021-10-21 20:08:45,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:45,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313517646] [2021-10-21 20:08:45,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:45,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:45,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:45,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313517646] [2021-10-21 20:08:45,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313517646] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:45,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550178536] [2021-10-21 20:08:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:45,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:45,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:45,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:45,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 20:08:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:45,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:08:45,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:45,394 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:45,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550178536] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:45,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:45,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-10-21 20:08:45,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200933952] [2021-10-21 20:08:45,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:08:45,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:45,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:08:45,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:45,397 INFO L87 Difference]: Start difference. First operand 249 states and 377 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 20:08:45,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:45,442 INFO L93 Difference]: Finished difference Result 449 states and 688 transitions. [2021-10-21 20:08:45,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:08:45,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) Word has length 14 [2021-10-21 20:08:45,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:45,446 INFO L225 Difference]: With dead ends: 449 [2021-10-21 20:08:45,447 INFO L226 Difference]: Without dead ends: 447 [2021-10-21 20:08:45,447 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:45,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-10-21 20:08:45,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 357. [2021-10-21 20:08:45,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 349 states have (on average 1.5558739255014327) internal successors, (543), 356 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:45,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 543 transitions. [2021-10-21 20:08:45,469 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 543 transitions. Word has length 14 [2021-10-21 20:08:45,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:45,473 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 543 transitions. [2021-10-21 20:08:45,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 20:08:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 543 transitions. [2021-10-21 20:08:45,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 20:08:45,476 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:45,476 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:45,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:45,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-21 20:08:45,692 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:45,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:45,692 INFO L82 PathProgramCache]: Analyzing trace with hash 592160614, now seen corresponding path program 1 times [2021-10-21 20:08:45,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:45,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664380199] [2021-10-21 20:08:45,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:45,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:45,745 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 20:08:45,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:45,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664380199] [2021-10-21 20:08:45,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664380199] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:45,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937110132] [2021-10-21 20:08:45,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:45,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:45,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:45,748 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:45,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 20:08:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:45,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:08:45,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:45,862 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 20:08:45,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937110132] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:45,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:45,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-10-21 20:08:45,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952015745] [2021-10-21 20:08:45,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:08:45,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:45,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:08:45,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:45,864 INFO L87 Difference]: Start difference. First operand 357 states and 543 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 20:08:45,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:45,906 INFO L93 Difference]: Finished difference Result 611 states and 939 transitions. [2021-10-21 20:08:45,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:08:45,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) Word has length 16 [2021-10-21 20:08:45,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:45,914 INFO L225 Difference]: With dead ends: 611 [2021-10-21 20:08:45,914 INFO L226 Difference]: Without dead ends: 609 [2021-10-21 20:08:45,920 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:45,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-10-21 20:08:45,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 465. [2021-10-21 20:08:45,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 457 states have (on average 1.5514223194748358) internal successors, (709), 464 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 709 transitions. [2021-10-21 20:08:45,942 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 709 transitions. Word has length 16 [2021-10-21 20:08:45,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:45,943 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 709 transitions. [2021-10-21 20:08:45,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 20:08:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 709 transitions. [2021-10-21 20:08:45,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 20:08:45,948 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:45,948 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-21 20:08:45,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:46,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:46,160 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:46,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:46,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1222343671, now seen corresponding path program 1 times [2021-10-21 20:08:46,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:46,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067659811] [2021-10-21 20:08:46,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:46,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:46,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:46,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067659811] [2021-10-21 20:08:46,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067659811] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:46,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266502771] [2021-10-21 20:08:46,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:46,201 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:46,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:46,202 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:46,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 20:08:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:46,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:08:46,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:46,312 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:46,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266502771] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:46,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:46,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-10-21 20:08:46,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659854033] [2021-10-21 20:08:46,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:08:46,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:46,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:08:46,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:46,315 INFO L87 Difference]: Start difference. First operand 465 states and 709 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 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 20:08:46,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:46,349 INFO L93 Difference]: Finished difference Result 837 states and 1298 transitions. [2021-10-21 20:08:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:08:46,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Word has length 18 [2021-10-21 20:08:46,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:46,355 INFO L225 Difference]: With dead ends: 837 [2021-10-21 20:08:46,355 INFO L226 Difference]: Without dead ends: 835 [2021-10-21 20:08:46,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:46,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2021-10-21 20:08:46,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 669. [2021-10-21 20:08:46,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 661 states have (on average 1.5416036308623298) internal successors, (1019), 668 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1019 transitions. [2021-10-21 20:08:46,378 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1019 transitions. Word has length 18 [2021-10-21 20:08:46,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:46,379 INFO L470 AbstractCegarLoop]: Abstraction has 669 states and 1019 transitions. [2021-10-21 20:08:46,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 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 20:08:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1019 transitions. [2021-10-21 20:08:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 20:08:46,380 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:46,380 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:08:46,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:46,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:46,595 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:46,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:46,595 INFO L82 PathProgramCache]: Analyzing trace with hash -668230362, now seen corresponding path program 1 times [2021-10-21 20:08:46,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:46,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17979290] [2021-10-21 20:08:46,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:46,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:46,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:46,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17979290] [2021-10-21 20:08:46,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17979290] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:46,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154277190] [2021-10-21 20:08:46,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:46,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:46,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:46,639 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:46,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 20:08:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:46,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:08:46,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:46,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:46,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154277190] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:46,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:46,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-10-21 20:08:46,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586348385] [2021-10-21 20:08:46,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:08:46,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:46,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:08:46,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:46,799 INFO L87 Difference]: Start difference. First operand 669 states and 1019 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 20:08:46,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:46,843 INFO L93 Difference]: Finished difference Result 1143 states and 1767 transitions. [2021-10-21 20:08:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:08:46,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 20:08:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:46,850 INFO L225 Difference]: With dead ends: 1143 [2021-10-21 20:08:46,851 INFO L226 Difference]: Without dead ends: 1141 [2021-10-21 20:08:46,852 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:08:46,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2021-10-21 20:08:46,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 873. [2021-10-21 20:08:46,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 865 states have (on average 1.5364161849710982) internal successors, (1329), 872 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:46,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1329 transitions. [2021-10-21 20:08:46,892 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1329 transitions. Word has length 20 [2021-10-21 20:08:46,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:46,893 INFO L470 AbstractCegarLoop]: Abstraction has 873 states and 1329 transitions. [2021-10-21 20:08:46,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 20:08:46,893 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1329 transitions. [2021-10-21 20:08:46,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-21 20:08:46,893 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:46,894 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1] [2021-10-21 20:08:46,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:47,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-21 20:08:47,116 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:47,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:47,116 INFO L82 PathProgramCache]: Analyzing trace with hash 2023206598, now seen corresponding path program 2 times [2021-10-21 20:08:47,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:47,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450023385] [2021-10-21 20:08:47,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:47,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:47,150 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:47,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:47,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450023385] [2021-10-21 20:08:47,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450023385] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:47,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698482745] [2021-10-21 20:08:47,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:08:47,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:47,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:47,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:47,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 20:08:47,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:08:47,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:47,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:08:47,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:47,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698482745] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:47,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:47,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-21 20:08:47,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902682201] [2021-10-21 20:08:47,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:08:47,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:47,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:08:47,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:08:47,316 INFO L87 Difference]: Start difference. First operand 873 states and 1329 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 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 20:08:47,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:47,382 INFO L93 Difference]: Finished difference Result 1509 states and 2332 transitions. [2021-10-21 20:08:47,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:08:47,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 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) Word has length 21 [2021-10-21 20:08:47,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:47,391 INFO L225 Difference]: With dead ends: 1509 [2021-10-21 20:08:47,391 INFO L226 Difference]: Without dead ends: 1507 [2021-10-21 20:08:47,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:08:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2021-10-21 20:08:47,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1195. [2021-10-21 20:08:47,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 1187 states have (on average 1.5282224094355519) internal successors, (1814), 1194 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:47,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1814 transitions. [2021-10-21 20:08:47,436 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1814 transitions. Word has length 21 [2021-10-21 20:08:47,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:47,436 INFO L470 AbstractCegarLoop]: Abstraction has 1195 states and 1814 transitions. [2021-10-21 20:08:47,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 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 20:08:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1814 transitions. [2021-10-21 20:08:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 20:08:47,438 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:47,438 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-21 20:08:47,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:47,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-21 20:08:47,652 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:47,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:47,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1211681860, now seen corresponding path program 2 times [2021-10-21 20:08:47,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:47,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822729049] [2021-10-21 20:08:47,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:47,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:47,685 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-21 20:08:47,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:47,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822729049] [2021-10-21 20:08:47,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822729049] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:08:47,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:08:47,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:08:47,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060235470] [2021-10-21 20:08:47,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:08:47,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:47,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:08:47,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:47,687 INFO L87 Difference]: Start difference. First operand 1195 states and 1814 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 20:08:47,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:47,712 INFO L93 Difference]: Finished difference Result 1195 states and 1814 transitions. [2021-10-21 20:08:47,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:08:47,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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) Word has length 24 [2021-10-21 20:08:47,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:47,719 INFO L225 Difference]: With dead ends: 1195 [2021-10-21 20:08:47,719 INFO L226 Difference]: Without dead ends: 1194 [2021-10-21 20:08:47,721 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:47,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-10-21 20:08:47,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2021-10-21 20:08:47,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 1187 states have (on average 1.5080033698399327) internal successors, (1790), 1193 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:47,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1790 transitions. [2021-10-21 20:08:47,757 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1790 transitions. Word has length 24 [2021-10-21 20:08:47,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:47,758 INFO L470 AbstractCegarLoop]: Abstraction has 1194 states and 1790 transitions. [2021-10-21 20:08:47,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 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 20:08:47,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1790 transitions. [2021-10-21 20:08:47,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 20:08:47,759 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:47,759 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2021-10-21 20:08:47,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-21 20:08:47,760 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:47,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:47,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1092753757, now seen corresponding path program 1 times [2021-10-21 20:08:47,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:47,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743197333] [2021-10-21 20:08:47,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:47,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:47,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:47,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743197333] [2021-10-21 20:08:47,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743197333] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:47,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517212882] [2021-10-21 20:08:47,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:47,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:47,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:47,798 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:47,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 20:08:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:47,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:08:47,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:47,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517212882] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:47,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:47,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-21 20:08:47,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042473368] [2021-10-21 20:08:47,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:08:47,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:47,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:08:47,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:08:47,962 INFO L87 Difference]: Start difference. First operand 1194 states and 1790 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 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 20:08:48,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:48,037 INFO L93 Difference]: Finished difference Result 1955 states and 2936 transitions. [2021-10-21 20:08:48,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:08:48,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 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 20:08:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:48,049 INFO L225 Difference]: With dead ends: 1955 [2021-10-21 20:08:48,049 INFO L226 Difference]: Without dead ends: 1954 [2021-10-21 20:08:48,051 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:08:48,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2021-10-21 20:08:48,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1430. [2021-10-21 20:08:48,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1423 states have (on average 1.5038650737877723) internal successors, (2140), 1429 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:48,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 2140 transitions. [2021-10-21 20:08:48,111 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 2140 transitions. Word has length 25 [2021-10-21 20:08:48,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:48,112 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 2140 transitions. [2021-10-21 20:08:48,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 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 20:08:48,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 2140 transitions. [2021-10-21 20:08:48,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-21 20:08:48,114 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:48,114 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1] [2021-10-21 20:08:48,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:48,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-21 20:08:48,336 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:48,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:48,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1883170607, now seen corresponding path program 2 times [2021-10-21 20:08:48,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:48,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911671213] [2021-10-21 20:08:48,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:48,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:48,368 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:48,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:48,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911671213] [2021-10-21 20:08:48,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911671213] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:48,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355817091] [2021-10-21 20:08:48,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:08:48,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:48,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:48,371 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:48,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 20:08:48,444 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:08:48,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:48,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:08:48,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:48,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355817091] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:48,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:48,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-21 20:08:48,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566972353] [2021-10-21 20:08:48,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:08:48,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:48,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:08:48,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:08:48,556 INFO L87 Difference]: Start difference. First operand 1430 states and 2140 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:48,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:48,631 INFO L93 Difference]: Finished difference Result 2463 states and 3758 transitions. [2021-10-21 20:08:48,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:08:48,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2021-10-21 20:08:48,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:48,646 INFO L225 Difference]: With dead ends: 2463 [2021-10-21 20:08:48,646 INFO L226 Difference]: Without dead ends: 2461 [2021-10-21 20:08:48,649 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:08:48,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2021-10-21 20:08:48,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 1960. [2021-10-21 20:08:48,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1960 states, 1953 states have (on average 1.495647721454173) internal successors, (2921), 1959 states have internal predecessors, (2921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2921 transitions. [2021-10-21 20:08:48,738 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2921 transitions. Word has length 27 [2021-10-21 20:08:48,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:48,738 INFO L470 AbstractCegarLoop]: Abstraction has 1960 states and 2921 transitions. [2021-10-21 20:08:48,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:48,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2921 transitions. [2021-10-21 20:08:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-21 20:08:48,741 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:48,741 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1] [2021-10-21 20:08:48,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:48,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-21 20:08:48,967 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:48,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:48,968 INFO L82 PathProgramCache]: Analyzing trace with hash -748146377, now seen corresponding path program 3 times [2021-10-21 20:08:48,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:48,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897790266] [2021-10-21 20:08:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:48,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:49,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:49,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897790266] [2021-10-21 20:08:49,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897790266] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:49,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177084041] [2021-10-21 20:08:49,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:08:49,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:49,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:49,032 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:49,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 20:08:49,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-21 20:08:49,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:49,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:08:49,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:49,209 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:49,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177084041] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:49,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:49,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 20:08:49,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743954535] [2021-10-21 20:08:49,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:08:49,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:49,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:08:49,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:08:49,211 INFO L87 Difference]: Start difference. First operand 1960 states and 2921 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:49,286 INFO L93 Difference]: Finished difference Result 3178 states and 4792 transitions. [2021-10-21 20:08:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:08:49,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-10-21 20:08:49,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:49,304 INFO L225 Difference]: With dead ends: 3178 [2021-10-21 20:08:49,304 INFO L226 Difference]: Without dead ends: 3176 [2021-10-21 20:08:49,307 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.4ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:08:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2021-10-21 20:08:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 2564. [2021-10-21 20:08:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2557 states have (on average 1.4861165428236214) internal successors, (3800), 2563 states have internal predecessors, (3800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 3800 transitions. [2021-10-21 20:08:49,412 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 3800 transitions. Word has length 28 [2021-10-21 20:08:49,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:49,413 INFO L470 AbstractCegarLoop]: Abstraction has 2564 states and 3800 transitions. [2021-10-21 20:08:49,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:49,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 3800 transitions. [2021-10-21 20:08:49,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-21 20:08:49,414 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:49,414 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-21 20:08:49,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:49,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-21 20:08:49,639 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:49,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:49,640 INFO L82 PathProgramCache]: Analyzing trace with hash 84255187, now seen corresponding path program 2 times [2021-10-21 20:08:49,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:49,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224414757] [2021-10-21 20:08:49,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:49,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-21 20:08:49,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:49,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224414757] [2021-10-21 20:08:49,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224414757] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:08:49,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:08:49,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:08:49,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323245481] [2021-10-21 20:08:49,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:08:49,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:49,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:08:49,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:49,681 INFO L87 Difference]: Start difference. First operand 2564 states and 3800 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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 20:08:49,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:49,719 INFO L93 Difference]: Finished difference Result 2564 states and 3800 transitions. [2021-10-21 20:08:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:08:49,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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) Word has length 30 [2021-10-21 20:08:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:49,733 INFO L225 Difference]: With dead ends: 2564 [2021-10-21 20:08:49,734 INFO L226 Difference]: Without dead ends: 2563 [2021-10-21 20:08:49,736 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:08:49,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2021-10-21 20:08:49,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2563. [2021-10-21 20:08:49,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2557 states have (on average 1.4661712944857255) internal successors, (3749), 2562 states have internal predecessors, (3749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:49,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3749 transitions. [2021-10-21 20:08:49,815 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3749 transitions. Word has length 30 [2021-10-21 20:08:49,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:49,816 INFO L470 AbstractCegarLoop]: Abstraction has 2563 states and 3749 transitions. [2021-10-21 20:08:49,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 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 20:08:49,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3749 transitions. [2021-10-21 20:08:49,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-21 20:08:49,818 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:49,818 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2021-10-21 20:08:49,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-21 20:08:49,818 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:49,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:49,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1682870728, now seen corresponding path program 1 times [2021-10-21 20:08:49,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:49,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949991845] [2021-10-21 20:08:49,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:49,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:49,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:49,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949991845] [2021-10-21 20:08:49,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949991845] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:49,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867945530] [2021-10-21 20:08:49,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:49,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:49,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:49,863 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:49,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-21 20:08:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:49,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:08:49,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:50,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867945530] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:50,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:50,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-21 20:08:50,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297962400] [2021-10-21 20:08:50,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:08:50,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:50,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:08:50,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:08:50,074 INFO L87 Difference]: Start difference. First operand 2563 states and 3749 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 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 20:08:50,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:50,167 INFO L93 Difference]: Finished difference Result 4182 states and 6155 transitions. [2021-10-21 20:08:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:08:50,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 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) Word has length 31 [2021-10-21 20:08:50,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:50,190 INFO L225 Difference]: With dead ends: 4182 [2021-10-21 20:08:50,190 INFO L226 Difference]: Without dead ends: 4181 [2021-10-21 20:08:50,193 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:08:50,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2021-10-21 20:08:50,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3071. [2021-10-21 20:08:50,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3071 states, 3065 states have (on average 1.462642740619902) internal successors, (4483), 3070 states have internal predecessors, (4483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:50,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 4483 transitions. [2021-10-21 20:08:50,304 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 4483 transitions. Word has length 31 [2021-10-21 20:08:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:50,304 INFO L470 AbstractCegarLoop]: Abstraction has 3071 states and 4483 transitions. [2021-10-21 20:08:50,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 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 20:08:50,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 4483 transitions. [2021-10-21 20:08:50,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-21 20:08:50,305 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:50,305 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2021-10-21 20:08:50,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:50,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:50,519 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:50,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:50,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1047523897, now seen corresponding path program 2 times [2021-10-21 20:08:50,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:50,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911562870] [2021-10-21 20:08:50,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:50,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:50,579 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:50,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:50,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911562870] [2021-10-21 20:08:50,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911562870] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:50,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814938118] [2021-10-21 20:08:50,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:08:50,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:50,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:50,581 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:50,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 20:08:50,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:08:50,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:50,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:08:50,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:50,816 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:50,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814938118] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:50,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:50,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 20:08:50,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299790363] [2021-10-21 20:08:50,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:08:50,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:08:50,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:08:50,818 INFO L87 Difference]: Start difference. First operand 3071 states and 4483 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:50,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:50,913 INFO L93 Difference]: Finished difference Result 4727 states and 6947 transitions. [2021-10-21 20:08:50,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:08:50,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2021-10-21 20:08:50,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:50,940 INFO L225 Difference]: With dead ends: 4727 [2021-10-21 20:08:50,940 INFO L226 Difference]: Without dead ends: 4726 [2021-10-21 20:08:50,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:08:50,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4726 states. [2021-10-21 20:08:51,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4726 to 3459. [2021-10-21 20:08:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 3453 states have (on average 1.4616275702287866) internal successors, (5047), 3458 states have internal predecessors, (5047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:51,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5047 transitions. [2021-10-21 20:08:51,081 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5047 transitions. Word has length 33 [2021-10-21 20:08:51,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:51,081 INFO L470 AbstractCegarLoop]: Abstraction has 3459 states and 5047 transitions. [2021-10-21 20:08:51,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:51,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5047 transitions. [2021-10-21 20:08:51,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-21 20:08:51,083 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:51,083 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1] [2021-10-21 20:08:51,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:51,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:51,306 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:51,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:51,307 INFO L82 PathProgramCache]: Analyzing trace with hash -507101786, now seen corresponding path program 4 times [2021-10-21 20:08:51,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:51,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870728957] [2021-10-21 20:08:51,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:51,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:51,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:51,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870728957] [2021-10-21 20:08:51,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870728957] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:51,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219277806] [2021-10-21 20:08:51,358 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 20:08:51,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:51,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:51,372 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:51,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-21 20:08:51,485 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 20:08:51,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:51,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:08:51,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:51,584 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:51,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219277806] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:51,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:51,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-21 20:08:51,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595053651] [2021-10-21 20:08:51,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:08:51,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:51,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:08:51,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:08:51,589 INFO L87 Difference]: Start difference. First operand 3459 states and 5047 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 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 20:08:51,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:51,689 INFO L93 Difference]: Finished difference Result 5326 states and 7884 transitions. [2021-10-21 20:08:51,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:08:51,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 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 20:08:51,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:51,714 INFO L225 Difference]: With dead ends: 5326 [2021-10-21 20:08:51,714 INFO L226 Difference]: Without dead ends: 5324 [2021-10-21 20:08:51,720 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.2ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:08:51,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2021-10-21 20:08:51,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 4377. [2021-10-21 20:08:51,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4377 states, 4371 states have (on average 1.453443148021048) internal successors, (6353), 4376 states have internal predecessors, (6353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:51,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 6353 transitions. [2021-10-21 20:08:51,870 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 6353 transitions. Word has length 35 [2021-10-21 20:08:51,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:51,870 INFO L470 AbstractCegarLoop]: Abstraction has 4377 states and 6353 transitions. [2021-10-21 20:08:51,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 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 20:08:51,870 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 6353 transitions. [2021-10-21 20:08:51,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-21 20:08:51,871 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:51,871 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1] [2021-10-21 20:08:51,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:52,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-21 20:08:52,087 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:52,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:52,088 INFO L82 PathProgramCache]: Analyzing trace with hash -32854327, now seen corresponding path program 3 times [2021-10-21 20:08:52,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:52,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769295355] [2021-10-21 20:08:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:52,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:52,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:52,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769295355] [2021-10-21 20:08:52,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769295355] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:52,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770866560] [2021-10-21 20:08:52,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:08:52,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:52,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:52,133 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:52,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-21 20:08:52,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-21 20:08:52,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:52,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:08:52,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:52,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770866560] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:52,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:52,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 20:08:52,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426152250] [2021-10-21 20:08:52,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:08:52,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:52,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:08:52,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:08:52,370 INFO L87 Difference]: Start difference. First operand 4377 states and 6353 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 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 20:08:52,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:52,476 INFO L93 Difference]: Finished difference Result 7069 states and 10425 transitions. [2021-10-21 20:08:52,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:08:52,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 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) Word has length 36 [2021-10-21 20:08:52,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:52,521 INFO L225 Difference]: With dead ends: 7069 [2021-10-21 20:08:52,522 INFO L226 Difference]: Without dead ends: 7067 [2021-10-21 20:08:52,527 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:08:52,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2021-10-21 20:08:52,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 5729. [2021-10-21 20:08:52,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5729 states, 5723 states have (on average 1.4441726367289882) internal successors, (8265), 5728 states have internal predecessors, (8265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:52,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8265 transitions. [2021-10-21 20:08:52,705 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8265 transitions. Word has length 36 [2021-10-21 20:08:52,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:52,705 INFO L470 AbstractCegarLoop]: Abstraction has 5729 states and 8265 transitions. [2021-10-21 20:08:52,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 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 20:08:52,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8265 transitions. [2021-10-21 20:08:52,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-21 20:08:52,708 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:52,708 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2021-10-21 20:08:52,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:52,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:52,931 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:52,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:52,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1137071253, now seen corresponding path program 2 times [2021-10-21 20:08:52,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:52,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003368775] [2021-10-21 20:08:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:52,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:52,977 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 20:08:52,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:52,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003368775] [2021-10-21 20:08:52,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003368775] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:52,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84994709] [2021-10-21 20:08:52,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:08:52,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:52,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:52,979 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:53,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-21 20:08:53,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:08:53,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:53,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:08:53,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:53,252 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 20:08:53,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84994709] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:53,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:53,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-21 20:08:53,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261611657] [2021-10-21 20:08:53,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:08:53,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:08:53,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:08:53,255 INFO L87 Difference]: Start difference. First operand 5729 states and 8265 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 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 20:08:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:53,432 INFO L93 Difference]: Finished difference Result 8806 states and 12809 transitions. [2021-10-21 20:08:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:08:53,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 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) Word has length 41 [2021-10-21 20:08:53,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:53,450 INFO L225 Difference]: With dead ends: 8806 [2021-10-21 20:08:53,451 INFO L226 Difference]: Without dead ends: 8805 [2021-10-21 20:08:53,458 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:08:53,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8805 states. [2021-10-21 20:08:53,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8805 to 6453. [2021-10-21 20:08:53,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6453 states, 6447 states have (on average 1.4433069644796028) internal successors, (9305), 6452 states have internal predecessors, (9305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:53,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 9305 transitions. [2021-10-21 20:08:53,623 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 9305 transitions. Word has length 41 [2021-10-21 20:08:53,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:53,623 INFO L470 AbstractCegarLoop]: Abstraction has 6453 states and 9305 transitions. [2021-10-21 20:08:53,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 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 20:08:53,623 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 9305 transitions. [2021-10-21 20:08:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-21 20:08:53,625 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:53,625 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2021-10-21 20:08:53,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:53,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-21 20:08:53,851 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:53,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:53,852 INFO L82 PathProgramCache]: Analyzing trace with hash 589297713, now seen corresponding path program 3 times [2021-10-21 20:08:53,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:53,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690936411] [2021-10-21 20:08:53,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:53,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:53,906 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:53,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:53,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690936411] [2021-10-21 20:08:53,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690936411] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:53,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843209088] [2021-10-21 20:08:53,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:08:53,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:53,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:53,908 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:53,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-21 20:08:54,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-21 20:08:54,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:54,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:08:54,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:54,201 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:54,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843209088] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:54,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:54,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-21 20:08:54,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849351956] [2021-10-21 20:08:54,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:08:54,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:54,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:08:54,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:08:54,203 INFO L87 Difference]: Start difference. First operand 6453 states and 9305 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 20:08:54,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:54,326 INFO L93 Difference]: Finished difference Result 9500 states and 13815 transitions. [2021-10-21 20:08:54,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:08:54,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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) Word has length 41 [2021-10-21 20:08:54,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:54,346 INFO L225 Difference]: With dead ends: 9500 [2021-10-21 20:08:54,347 INFO L226 Difference]: Without dead ends: 9499 [2021-10-21 20:08:54,355 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:08:54,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2021-10-21 20:08:54,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 7025. [2021-10-21 20:08:54,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7019 states have (on average 1.4433680011397636) internal successors, (10131), 7024 states have internal predecessors, (10131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 10131 transitions. [2021-10-21 20:08:54,573 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 10131 transitions. Word has length 41 [2021-10-21 20:08:54,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:54,573 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 10131 transitions. [2021-10-21 20:08:54,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 20:08:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 10131 transitions. [2021-10-21 20:08:54,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-21 20:08:54,575 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:54,575 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 1, 1] [2021-10-21 20:08:54,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:54,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-21 20:08:54,803 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:54,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:54,804 INFO L82 PathProgramCache]: Analyzing trace with hash 644163159, now seen corresponding path program 5 times [2021-10-21 20:08:54,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:54,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186849821] [2021-10-21 20:08:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:54,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:54,861 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:54,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:54,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186849821] [2021-10-21 20:08:54,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186849821] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:54,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4953386] [2021-10-21 20:08:54,862 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 20:08:54,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:54,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:54,863 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:54,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-21 20:08:55,032 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-21 20:08:55,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:55,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:08:55,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:55,147 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:55,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4953386] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:55,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:55,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-21 20:08:55,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164815738] [2021-10-21 20:08:55,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:08:55,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:55,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:08:55,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:08:55,150 INFO L87 Difference]: Start difference. First operand 7025 states and 10131 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:55,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:55,331 INFO L93 Difference]: Finished difference Result 10381 states and 15206 transitions. [2021-10-21 20:08:55,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:08:55,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-10-21 20:08:55,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:55,353 INFO L225 Difference]: With dead ends: 10381 [2021-10-21 20:08:55,354 INFO L226 Difference]: Without dead ends: 10379 [2021-10-21 20:08:55,360 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.6ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:08:55,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10379 states. [2021-10-21 20:08:55,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10379 to 8665. [2021-10-21 20:08:55,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8665 states, 8659 states have (on average 1.4364245293913847) internal successors, (12438), 8664 states have internal predecessors, (12438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8665 states to 8665 states and 12438 transitions. [2021-10-21 20:08:55,579 INFO L78 Accepts]: Start accepts. Automaton has 8665 states and 12438 transitions. Word has length 42 [2021-10-21 20:08:55,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:55,580 INFO L470 AbstractCegarLoop]: Abstraction has 8665 states and 12438 transitions. [2021-10-21 20:08:55,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:55,580 INFO L276 IsEmpty]: Start isEmpty. Operand 8665 states and 12438 transitions. [2021-10-21 20:08:55,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-21 20:08:55,582 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:55,582 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1] [2021-10-21 20:08:55,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:55,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:55,795 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:55,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:55,796 INFO L82 PathProgramCache]: Analyzing trace with hash -809708433, now seen corresponding path program 4 times [2021-10-21 20:08:55,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:55,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403490412] [2021-10-21 20:08:55,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:55,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:55,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:55,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403490412] [2021-10-21 20:08:55,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403490412] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:55,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871399798] [2021-10-21 20:08:55,849 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 20:08:55,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:55,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:55,854 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:55,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-21 20:08:56,028 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 20:08:56,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:56,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:08:56,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:56,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871399798] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:56,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:56,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-21 20:08:56,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891209090] [2021-10-21 20:08:56,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:08:56,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:56,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:08:56,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:08:56,149 INFO L87 Difference]: Start difference. First operand 8665 states and 12438 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 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 20:08:56,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:56,345 INFO L93 Difference]: Finished difference Result 13312 states and 19429 transitions. [2021-10-21 20:08:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:08:56,345 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 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 20:08:56,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:56,375 INFO L225 Difference]: With dead ends: 13312 [2021-10-21 20:08:56,375 INFO L226 Difference]: Without dead ends: 13310 [2021-10-21 20:08:56,380 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.2ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:08:56,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13310 states. [2021-10-21 20:08:56,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13310 to 10967. [2021-10-21 20:08:56,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10967 states, 10961 states have (on average 1.4284280631329258) internal successors, (15657), 10966 states have internal predecessors, (15657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:56,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10967 states to 10967 states and 15657 transitions. [2021-10-21 20:08:56,656 INFO L78 Accepts]: Start accepts. Automaton has 10967 states and 15657 transitions. Word has length 45 [2021-10-21 20:08:56,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:56,657 INFO L470 AbstractCegarLoop]: Abstraction has 10967 states and 15657 transitions. [2021-10-21 20:08:56,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 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 20:08:56,657 INFO L276 IsEmpty]: Start isEmpty. Operand 10967 states and 15657 transitions. [2021-10-21 20:08:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-21 20:08:56,659 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:56,659 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1] [2021-10-21 20:08:56,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:56,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:56,877 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:56,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:56,877 INFO L82 PathProgramCache]: Analyzing trace with hash -144620410, now seen corresponding path program 6 times [2021-10-21 20:08:56,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:56,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710618951] [2021-10-21 20:08:56,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:56,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:56,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:56,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710618951] [2021-10-21 20:08:56,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710618951] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:56,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937242030] [2021-10-21 20:08:56,938 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 20:08:56,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:56,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:56,939 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:56,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-21 20:08:57,154 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-21 20:08:57,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:57,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:08:57,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:57,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937242030] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:57,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:57,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-21 20:08:57,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506946812] [2021-10-21 20:08:57,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:08:57,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:57,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:08:57,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:08:57,299 INFO L87 Difference]: Start difference. First operand 10967 states and 15657 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:57,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:57,532 INFO L93 Difference]: Finished difference Result 15622 states and 22665 transitions. [2021-10-21 20:08:57,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:08:57,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2021-10-21 20:08:57,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:57,562 INFO L225 Difference]: With dead ends: 15622 [2021-10-21 20:08:57,562 INFO L226 Difference]: Without dead ends: 15620 [2021-10-21 20:08:57,566 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.8ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:08:57,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15620 states. [2021-10-21 20:08:57,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15620 to 13091. [2021-10-21 20:08:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13091 states, 13085 states have (on average 1.4221627818112343) internal successors, (18609), 13090 states have internal predecessors, (18609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:57,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 18609 transitions. [2021-10-21 20:08:57,886 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 18609 transitions. Word has length 49 [2021-10-21 20:08:57,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:57,887 INFO L470 AbstractCegarLoop]: Abstraction has 13091 states and 18609 transitions. [2021-10-21 20:08:57,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:57,887 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 18609 transitions. [2021-10-21 20:08:57,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-21 20:08:57,890 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:57,890 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2021-10-21 20:08:57,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:58,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-21 20:08:58,115 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:58,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:58,116 INFO L82 PathProgramCache]: Analyzing trace with hash 2004605083, now seen corresponding path program 4 times [2021-10-21 20:08:58,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:58,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230811437] [2021-10-21 20:08:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:58,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:58,183 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:58,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:58,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230811437] [2021-10-21 20:08:58,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230811437] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:58,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727326418] [2021-10-21 20:08:58,184 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 20:08:58,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:58,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:58,193 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:58,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-21 20:08:58,423 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 20:08:58,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:58,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:08:58,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:58,559 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:58,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727326418] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:58,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:08:58,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-21 20:08:58,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786254943] [2021-10-21 20:08:58,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:08:58,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:08:58,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:08:58,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:08:58,562 INFO L87 Difference]: Start difference. First operand 13091 states and 18609 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:58,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:08:58,870 INFO L93 Difference]: Finished difference Result 19890 states and 28521 transitions. [2021-10-21 20:08:58,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:08:58,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2021-10-21 20:08:58,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:08:58,923 INFO L225 Difference]: With dead ends: 19890 [2021-10-21 20:08:58,923 INFO L226 Difference]: Without dead ends: 19889 [2021-10-21 20:08:58,931 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.9ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:08:58,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19889 states. [2021-10-21 20:08:59,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19889 to 14129. [2021-10-21 20:08:59,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14129 states, 14123 states have (on average 1.4229979466119096) internal successors, (20097), 14128 states have internal predecessors, (20097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14129 states to 14129 states and 20097 transitions. [2021-10-21 20:08:59,338 INFO L78 Accepts]: Start accepts. Automaton has 14129 states and 20097 transitions. Word has length 49 [2021-10-21 20:08:59,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:08:59,338 INFO L470 AbstractCegarLoop]: Abstraction has 14129 states and 20097 transitions. [2021-10-21 20:08:59,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:08:59,338 INFO L276 IsEmpty]: Start isEmpty. Operand 14129 states and 20097 transitions. [2021-10-21 20:08:59,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-21 20:08:59,341 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:08:59,342 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2021-10-21 20:08:59,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:08:59,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:59,556 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:08:59,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:08:59,556 INFO L82 PathProgramCache]: Analyzing trace with hash -85375778, now seen corresponding path program 3 times [2021-10-21 20:08:59,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:08:59,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822104238] [2021-10-21 20:08:59,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:08:59,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:08:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:08:59,626 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:08:59,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:08:59,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822104238] [2021-10-21 20:08:59,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822104238] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:08:59,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832691630] [2021-10-21 20:08:59,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:08:59,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:08:59,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:08:59,629 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:08:59,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-21 20:08:59,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-21 20:08:59,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:08:59,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:08:59,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:08:59,999 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:00,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832691630] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:00,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:00,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-21 20:09:00,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963540434] [2021-10-21 20:09:00,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 20:09:00,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:00,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:09:00,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:09:00,003 INFO L87 Difference]: Start difference. First operand 14129 states and 20097 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 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 20:09:00,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:00,189 INFO L93 Difference]: Finished difference Result 20774 states and 29837 transitions. [2021-10-21 20:09:00,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:09:00,189 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 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) Word has length 51 [2021-10-21 20:09:00,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:00,300 INFO L225 Difference]: With dead ends: 20774 [2021-10-21 20:09:00,300 INFO L226 Difference]: Without dead ends: 20773 [2021-10-21 20:09:00,306 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.7ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:09:00,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20773 states. [2021-10-21 20:09:00,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20773 to 15381. [2021-10-21 20:09:00,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15381 states, 15375 states have (on average 1.4231544715447155) internal successors, (21881), 15380 states have internal predecessors, (21881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:00,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15381 states to 15381 states and 21881 transitions. [2021-10-21 20:09:00,705 INFO L78 Accepts]: Start accepts. Automaton has 15381 states and 21881 transitions. Word has length 51 [2021-10-21 20:09:00,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:00,705 INFO L470 AbstractCegarLoop]: Abstraction has 15381 states and 21881 transitions. [2021-10-21 20:09:00,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 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 20:09:00,706 INFO L276 IsEmpty]: Start isEmpty. Operand 15381 states and 21881 transitions. [2021-10-21 20:09:00,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-21 20:09:00,709 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:00,710 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1] [2021-10-21 20:09:00,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:00,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-21 20:09:00,923 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:00,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:00,924 INFO L82 PathProgramCache]: Analyzing trace with hash -884758135, now seen corresponding path program 5 times [2021-10-21 20:09:00,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:00,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574754135] [2021-10-21 20:09:00,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:00,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:00,994 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:00,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:00,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574754135] [2021-10-21 20:09:00,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574754135] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:00,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38416150] [2021-10-21 20:09:00,995 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 20:09:00,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:00,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:00,996 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:01,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-21 20:09:01,226 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-21 20:09:01,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:01,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:09:01,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:01,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38416150] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:01,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:01,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-21 20:09:01,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144217330] [2021-10-21 20:09:01,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:09:01,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:01,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:09:01,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:09:01,396 INFO L87 Difference]: Start difference. First operand 15381 states and 21881 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:01,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:01,631 INFO L93 Difference]: Finished difference Result 22697 states and 32841 transitions. [2021-10-21 20:09:01,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:09:01,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2021-10-21 20:09:01,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:01,667 INFO L225 Difference]: With dead ends: 22697 [2021-10-21 20:09:01,668 INFO L226 Difference]: Without dead ends: 22695 [2021-10-21 20:09:01,676 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.6ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:09:01,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22695 states. [2021-10-21 20:09:02,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22695 to 18973. [2021-10-21 20:09:02,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18973 states, 18967 states have (on average 1.4163547213581484) internal successors, (26864), 18972 states have internal predecessors, (26864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:02,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18973 states to 18973 states and 26864 transitions. [2021-10-21 20:09:02,113 INFO L78 Accepts]: Start accepts. Automaton has 18973 states and 26864 transitions. Word has length 54 [2021-10-21 20:09:02,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:02,113 INFO L470 AbstractCegarLoop]: Abstraction has 18973 states and 26864 transitions. [2021-10-21 20:09:02,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:02,114 INFO L276 IsEmpty]: Start isEmpty. Operand 18973 states and 26864 transitions. [2021-10-21 20:09:02,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-21 20:09:02,117 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:02,117 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 1, 1] [2021-10-21 20:09:02,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:02,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:02,318 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:02,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:02,319 INFO L82 PathProgramCache]: Analyzing trace with hash -931224713, now seen corresponding path program 7 times [2021-10-21 20:09:02,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:02,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964009997] [2021-10-21 20:09:02,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:02,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:02,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:02,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964009997] [2021-10-21 20:09:02,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964009997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:02,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521691143] [2021-10-21 20:09:02,392 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 20:09:02,392 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:02,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:02,393 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:02,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-21 20:09:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:02,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:09:02,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:02,796 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:02,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521691143] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:02,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:02,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-10-21 20:09:02,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517123813] [2021-10-21 20:09:02,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 20:09:02,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:02,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:09:02,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:09:02,797 INFO L87 Difference]: Start difference. First operand 18973 states and 26864 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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 20:09:03,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:03,080 INFO L93 Difference]: Finished difference Result 26251 states and 37778 transitions. [2021-10-21 20:09:03,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 20:09:03,080 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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) Word has length 56 [2021-10-21 20:09:03,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:03,108 INFO L225 Difference]: With dead ends: 26251 [2021-10-21 20:09:03,108 INFO L226 Difference]: Without dead ends: 26249 [2021-10-21 20:09:03,116 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.5ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:09:03,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26249 states. [2021-10-21 20:09:03,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26249 to 22311. [2021-10-21 20:09:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22311 states, 22305 states have (on average 1.4110289172831203) internal successors, (31473), 22310 states have internal predecessors, (31473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22311 states to 22311 states and 31473 transitions. [2021-10-21 20:09:03,489 INFO L78 Accepts]: Start accepts. Automaton has 22311 states and 31473 transitions. Word has length 56 [2021-10-21 20:09:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:03,490 INFO L470 AbstractCegarLoop]: Abstraction has 22311 states and 31473 transitions. [2021-10-21 20:09:03,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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 20:09:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 22311 states and 31473 transitions. [2021-10-21 20:09:03,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-21 20:09:03,495 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:03,495 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2021-10-21 20:09:03,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:03,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:03,699 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:03,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:03,699 INFO L82 PathProgramCache]: Analyzing trace with hash -2041729275, now seen corresponding path program 5 times [2021-10-21 20:09:03,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:03,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854275133] [2021-10-21 20:09:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:03,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:03,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:03,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854275133] [2021-10-21 20:09:03,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854275133] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:03,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890320984] [2021-10-21 20:09:03,769 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 20:09:03,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:03,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:03,771 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:03,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-21 20:09:04,021 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-10-21 20:09:04,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:04,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:09:04,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:04,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890320984] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:04,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:04,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-21 20:09:04,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080466693] [2021-10-21 20:09:04,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:09:04,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:04,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:09:04,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:09:04,185 INFO L87 Difference]: Start difference. First operand 22311 states and 31473 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:04,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:04,561 INFO L93 Difference]: Finished difference Result 32955 states and 46932 transitions. [2021-10-21 20:09:04,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:09:04,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-10-21 20:09:04,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:04,593 INFO L225 Difference]: With dead ends: 32955 [2021-10-21 20:09:04,594 INFO L226 Difference]: Without dead ends: 32954 [2021-10-21 20:09:04,597 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.9ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:09:04,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32954 states. [2021-10-21 20:09:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32954 to 23705. [2021-10-21 20:09:04,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23705 states, 23699 states have (on average 1.4119583104772353) internal successors, (33462), 23704 states have internal predecessors, (33462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:04,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23705 states to 23705 states and 33462 transitions. [2021-10-21 20:09:04,922 INFO L78 Accepts]: Start accepts. Automaton has 23705 states and 33462 transitions. Word has length 57 [2021-10-21 20:09:04,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:04,923 INFO L470 AbstractCegarLoop]: Abstraction has 23705 states and 33462 transitions. [2021-10-21 20:09:04,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:04,923 INFO L276 IsEmpty]: Start isEmpty. Operand 23705 states and 33462 transitions. [2021-10-21 20:09:04,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-21 20:09:04,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:04,927 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1] [2021-10-21 20:09:04,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-21 20:09:05,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:05,128 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:05,128 INFO L82 PathProgramCache]: Analyzing trace with hash 2087316113, now seen corresponding path program 4 times [2021-10-21 20:09:05,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:05,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884956146] [2021-10-21 20:09:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:05,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:05,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:05,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884956146] [2021-10-21 20:09:05,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884956146] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:05,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901127180] [2021-10-21 20:09:05,187 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 20:09:05,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:05,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:05,200 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:05,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-21 20:09:05,474 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 20:09:05,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:05,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:09:05,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:05,667 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:05,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901127180] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:05,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:05,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-21 20:09:05,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482304783] [2021-10-21 20:09:05,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 20:09:05,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:05,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:09:05,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:09:05,674 INFO L87 Difference]: Start difference. First operand 23705 states and 33462 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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 20:09:05,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:05,978 INFO L93 Difference]: Finished difference Result 33669 states and 48018 transitions. [2021-10-21 20:09:05,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:09:05,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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) Word has length 61 [2021-10-21 20:09:05,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:06,019 INFO L225 Difference]: With dead ends: 33669 [2021-10-21 20:09:06,019 INFO L226 Difference]: Without dead ends: 33668 [2021-10-21 20:09:06,027 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:09:06,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33668 states. [2021-10-21 20:09:06,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33668 to 25269. [2021-10-21 20:09:06,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25269 states, 25263 states have (on average 1.412500494794759) internal successors, (35684), 25268 states have internal predecessors, (35684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:06,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25269 states to 25269 states and 35684 transitions. [2021-10-21 20:09:06,467 INFO L78 Accepts]: Start accepts. Automaton has 25269 states and 35684 transitions. Word has length 61 [2021-10-21 20:09:06,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:06,467 INFO L470 AbstractCegarLoop]: Abstraction has 25269 states and 35684 transitions. [2021-10-21 20:09:06,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 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 20:09:06,467 INFO L276 IsEmpty]: Start isEmpty. Operand 25269 states and 35684 transitions. [2021-10-21 20:09:06,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-21 20:09:06,473 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:06,474 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 1, 1] [2021-10-21 20:09:06,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:06,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-10-21 20:09:06,687 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:06,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:06,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1714864998, now seen corresponding path program 8 times [2021-10-21 20:09:06,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:06,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097998781] [2021-10-21 20:09:06,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:06,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:06,786 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:06,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:06,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097998781] [2021-10-21 20:09:06,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097998781] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:06,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487510440] [2021-10-21 20:09:06,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:09:06,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:06,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:06,788 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:06,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-21 20:09:07,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:09:07,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:07,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:09:07,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:07,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487510440] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:07,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:07,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-21 20:09:07,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820122727] [2021-10-21 20:09:07,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 20:09:07,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:07,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 20:09:07,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:09:07,325 INFO L87 Difference]: Start difference. First operand 25269 states and 35684 transitions. Second operand has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:07,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:07,780 INFO L93 Difference]: Finished difference Result 34130 states and 48968 transitions. [2021-10-21 20:09:07,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:09:07,781 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-10-21 20:09:07,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:07,821 INFO L225 Difference]: With dead ends: 34130 [2021-10-21 20:09:07,821 INFO L226 Difference]: Without dead ends: 34128 [2021-10-21 20:09:07,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.0ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:09:07,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34128 states. [2021-10-21 20:09:08,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34128 to 29345. [2021-10-21 20:09:08,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29345 states, 29339 states have (on average 1.4078871127168615) internal successors, (41306), 29344 states have internal predecessors, (41306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:08,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29345 states to 29345 states and 41306 transitions. [2021-10-21 20:09:08,210 INFO L78 Accepts]: Start accepts. Automaton has 29345 states and 41306 transitions. Word has length 63 [2021-10-21 20:09:08,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:08,210 INFO L470 AbstractCegarLoop]: Abstraction has 29345 states and 41306 transitions. [2021-10-21 20:09:08,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:08,210 INFO L276 IsEmpty]: Start isEmpty. Operand 29345 states and 41306 transitions. [2021-10-21 20:09:08,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-21 20:09:08,216 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:08,216 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1] [2021-10-21 20:09:08,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:08,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:08,431 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:08,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:08,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1360130479, now seen corresponding path program 6 times [2021-10-21 20:09:08,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:08,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110970578] [2021-10-21 20:09:08,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:08,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:08,487 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:08,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:08,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110970578] [2021-10-21 20:09:08,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110970578] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:08,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836311328] [2021-10-21 20:09:08,488 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 20:09:08,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:08,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:08,504 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:08,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-21 20:09:08,799 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-21 20:09:08,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:08,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:09:08,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:08,962 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:08,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836311328] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:08,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:08,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-21 20:09:08,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184685806] [2021-10-21 20:09:08,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:09:08,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:08,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:09:08,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:09:08,965 INFO L87 Difference]: Start difference. First operand 29345 states and 41306 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:09,287 INFO L93 Difference]: Finished difference Result 41880 states and 59971 transitions. [2021-10-21 20:09:09,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:09:09,288 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-10-21 20:09:09,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:09,338 INFO L225 Difference]: With dead ends: 41880 [2021-10-21 20:09:09,339 INFO L226 Difference]: Without dead ends: 41878 [2021-10-21 20:09:09,348 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.0ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:09:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41878 states. [2021-10-21 20:09:09,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41878 to 35465. [2021-10-21 20:09:09,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35465 states, 35459 states have (on average 1.4021263995036521) internal successors, (49718), 35464 states have internal predecessors, (49718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:09,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35465 states to 35465 states and 49718 transitions. [2021-10-21 20:09:09,936 INFO L78 Accepts]: Start accepts. Automaton has 35465 states and 49718 transitions. Word has length 63 [2021-10-21 20:09:09,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:09,936 INFO L470 AbstractCegarLoop]: Abstraction has 35465 states and 49718 transitions. [2021-10-21 20:09:09,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:09,936 INFO L276 IsEmpty]: Start isEmpty. Operand 35465 states and 49718 transitions. [2021-10-21 20:09:09,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-21 20:09:09,942 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:09,943 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2021-10-21 20:09:09,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-10-21 20:09:10,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-21 20:09:10,163 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:10,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:10,164 INFO L82 PathProgramCache]: Analyzing trace with hash -851477649, now seen corresponding path program 6 times [2021-10-21 20:09:10,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:10,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542493320] [2021-10-21 20:09:10,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:10,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:10,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:10,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542493320] [2021-10-21 20:09:10,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542493320] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:10,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485648100] [2021-10-21 20:09:10,232 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 20:09:10,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:10,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:10,241 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:10,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-21 20:09:10,570 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-10-21 20:09:10,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:10,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:09:10,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:10,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485648100] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:10,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:10,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-10-21 20:09:10,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329898462] [2021-10-21 20:09:10,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 20:09:10,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:10,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:09:10,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:09:10,733 INFO L87 Difference]: Start difference. First operand 35465 states and 49718 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 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 20:09:11,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:11,193 INFO L93 Difference]: Finished difference Result 51129 states and 72397 transitions. [2021-10-21 20:09:11,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 20:09:11,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 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 20:09:11,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:11,251 INFO L225 Difference]: With dead ends: 51129 [2021-10-21 20:09:11,251 INFO L226 Difference]: Without dead ends: 51128 [2021-10-21 20:09:11,259 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.5ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:09:11,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51128 states. [2021-10-21 20:09:11,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51128 to 37261. [2021-10-21 20:09:11,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37261 states, 37255 states have (on average 1.4030599919473896) internal successors, (52271), 37260 states have internal predecessors, (52271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37261 states to 37261 states and 52271 transitions. [2021-10-21 20:09:11,795 INFO L78 Accepts]: Start accepts. Automaton has 37261 states and 52271 transitions. Word has length 65 [2021-10-21 20:09:11,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:11,795 INFO L470 AbstractCegarLoop]: Abstraction has 37261 states and 52271 transitions. [2021-10-21 20:09:11,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 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 20:09:11,795 INFO L276 IsEmpty]: Start isEmpty. Operand 37261 states and 52271 transitions. [2021-10-21 20:09:11,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-21 20:09:11,802 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:11,802 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 1, 1] [2021-10-21 20:09:11,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:12,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-10-21 20:09:12,027 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:12,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:12,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1457084265, now seen corresponding path program 9 times [2021-10-21 20:09:12,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:12,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572425123] [2021-10-21 20:09:12,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:12,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:12,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:12,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572425123] [2021-10-21 20:09:12,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572425123] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:12,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401184976] [2021-10-21 20:09:12,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:09:12,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:12,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:12,117 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:12,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-21 20:09:12,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-21 20:09:12,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:12,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 20:09:12,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:12,633 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:12,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401184976] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:12,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:12,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-21 20:09:12,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546160682] [2021-10-21 20:09:12,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 20:09:12,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:12,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 20:09:12,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:09:12,635 INFO L87 Difference]: Start difference. First operand 37261 states and 52271 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 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 20:09:12,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:12,927 INFO L93 Difference]: Finished difference Result 49299 states and 70254 transitions. [2021-10-21 20:09:12,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 20:09:12,927 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 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 20:09:12,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:12,987 INFO L225 Difference]: With dead ends: 49299 [2021-10-21 20:09:12,987 INFO L226 Difference]: Without dead ends: 49297 [2021-10-21 20:09:12,997 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.4ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:09:13,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49297 states. [2021-10-21 20:09:13,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49297 to 42813. [2021-10-21 20:09:13,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42813 states, 42807 states have (on average 1.3990468848552806) internal successors, (59889), 42812 states have internal predecessors, (59889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 59889 transitions. [2021-10-21 20:09:13,738 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 59889 transitions. Word has length 70 [2021-10-21 20:09:13,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:13,738 INFO L470 AbstractCegarLoop]: Abstraction has 42813 states and 59889 transitions. [2021-10-21 20:09:13,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 11 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 20:09:13,738 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 59889 transitions. [2021-10-21 20:09:13,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-21 20:09:13,744 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:13,745 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2021-10-21 20:09:13,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:13,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:13,945 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:13,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:13,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1593226108, now seen corresponding path program 5 times [2021-10-21 20:09:13,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:13,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066279005] [2021-10-21 20:09:13,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:13,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:14,011 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:14,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:14,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066279005] [2021-10-21 20:09:14,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066279005] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:14,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284695922] [2021-10-21 20:09:14,012 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 20:09:14,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:14,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:14,014 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:14,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-21 20:09:14,478 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-10-21 20:09:14,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:14,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:09:14,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:14,679 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:14,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284695922] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:14,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:14,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-21 20:09:14,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163619589] [2021-10-21 20:09:14,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:09:14,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:14,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:09:14,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:09:14,682 INFO L87 Difference]: Start difference. First operand 42813 states and 59889 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 8 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 20:09:15,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:15,107 INFO L93 Difference]: Finished difference Result 59102 states and 83563 transitions. [2021-10-21 20:09:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:09:15,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 8 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) Word has length 71 [2021-10-21 20:09:15,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:15,177 INFO L225 Difference]: With dead ends: 59102 [2021-10-21 20:09:15,177 INFO L226 Difference]: Without dead ends: 59101 [2021-10-21 20:09:15,189 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.5ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:09:15,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59101 states. [2021-10-21 20:09:16,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59101 to 45005. [2021-10-21 20:09:16,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45005 states, 44999 states have (on average 1.3997422164937) internal successors, (62987), 45004 states have internal predecessors, (62987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:16,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45005 states to 45005 states and 62987 transitions. [2021-10-21 20:09:16,221 INFO L78 Accepts]: Start accepts. Automaton has 45005 states and 62987 transitions. Word has length 71 [2021-10-21 20:09:16,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:16,221 INFO L470 AbstractCegarLoop]: Abstraction has 45005 states and 62987 transitions. [2021-10-21 20:09:16,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 8 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 20:09:16,221 INFO L276 IsEmpty]: Start isEmpty. Operand 45005 states and 62987 transitions. [2021-10-21 20:09:16,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-21 20:09:16,226 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:16,226 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1] [2021-10-21 20:09:16,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:16,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-21 20:09:16,431 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:16,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:16,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1572566089, now seen corresponding path program 7 times [2021-10-21 20:09:16,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:16,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15069697] [2021-10-21 20:09:16,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:16,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:16,510 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 20:09:16,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:16,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15069697] [2021-10-21 20:09:16,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15069697] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:16,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093259863] [2021-10-21 20:09:16,511 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 20:09:16,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:16,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:16,512 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:16,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-21 20:09:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:16,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:09:16,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:17,106 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 20:09:17,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093259863] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:17,107 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:17,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-10-21 20:09:17,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850887347] [2021-10-21 20:09:17,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 20:09:17,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:17,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:09:17,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:09:17,109 INFO L87 Difference]: Start difference. First operand 45005 states and 62987 transitions. Second operand has 10 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:17,631 INFO L93 Difference]: Finished difference Result 62465 states and 88920 transitions. [2021-10-21 20:09:17,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 20:09:17,631 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2021-10-21 20:09:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:17,830 INFO L225 Difference]: With dead ends: 62465 [2021-10-21 20:09:17,830 INFO L226 Difference]: Without dead ends: 62463 [2021-10-21 20:09:17,840 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.5ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:09:17,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62463 states. [2021-10-21 20:09:18,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62463 to 53489. [2021-10-21 20:09:18,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53489 states, 53483 states have (on average 1.394798347138343) internal successors, (74598), 53488 states have internal predecessors, (74598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:18,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53489 states to 53489 states and 74598 transitions. [2021-10-21 20:09:18,890 INFO L78 Accepts]: Start accepts. Automaton has 53489 states and 74598 transitions. Word has length 72 [2021-10-21 20:09:18,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:18,890 INFO L470 AbstractCegarLoop]: Abstraction has 53489 states and 74598 transitions. [2021-10-21 20:09:18,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:18,890 INFO L276 IsEmpty]: Start isEmpty. Operand 53489 states and 74598 transitions. [2021-10-21 20:09:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-21 20:09:18,895 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:18,895 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2021-10-21 20:09:18,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:19,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-10-21 20:09:19,103 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:19,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:19,104 INFO L82 PathProgramCache]: Analyzing trace with hash 2147171801, now seen corresponding path program 7 times [2021-10-21 20:09:19,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:19,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315524309] [2021-10-21 20:09:19,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:19,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:19,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:19,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315524309] [2021-10-21 20:09:19,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315524309] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:19,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396493752] [2021-10-21 20:09:19,181 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 20:09:19,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:19,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:19,182 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:19,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-21 20:09:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:19,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:09:19,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:19,904 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:19,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396493752] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:19,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:19,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-21 20:09:19,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884583715] [2021-10-21 20:09:19,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 20:09:19,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:19,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 20:09:19,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:09:19,906 INFO L87 Difference]: Start difference. First operand 53489 states and 74598 transitions. Second operand has 11 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:20,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:20,573 INFO L93 Difference]: Finished difference Result 75498 states and 106380 transitions. [2021-10-21 20:09:20,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:09:20,574 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2021-10-21 20:09:20,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:20,667 INFO L225 Difference]: With dead ends: 75498 [2021-10-21 20:09:20,667 INFO L226 Difference]: Without dead ends: 75497 [2021-10-21 20:09:20,681 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.0ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:09:20,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75497 states. [2021-10-21 20:09:21,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75497 to 55733. [2021-10-21 20:09:21,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55733 states, 55727 states have (on average 1.3956968794300788) internal successors, (77778), 55732 states have internal predecessors, (77778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:21,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55733 states to 55733 states and 77778 transitions. [2021-10-21 20:09:21,942 INFO L78 Accepts]: Start accepts. Automaton has 55733 states and 77778 transitions. Word has length 73 [2021-10-21 20:09:21,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:21,943 INFO L470 AbstractCegarLoop]: Abstraction has 55733 states and 77778 transitions. [2021-10-21 20:09:21,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:21,943 INFO L276 IsEmpty]: Start isEmpty. Operand 55733 states and 77778 transitions. [2021-10-21 20:09:21,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-21 20:09:21,952 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:21,952 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1] [2021-10-21 20:09:21,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:22,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-21 20:09:22,159 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:22,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:22,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1519696454, now seen corresponding path program 10 times [2021-10-21 20:09:22,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:22,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613938855] [2021-10-21 20:09:22,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:22,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:22,276 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:22,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:22,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613938855] [2021-10-21 20:09:22,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613938855] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:22,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515496063] [2021-10-21 20:09:22,278 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 20:09:22,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:22,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:22,284 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:22,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-21 20:09:22,806 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 20:09:22,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:22,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 20:09:22,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:23,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515496063] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:23,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:09:23,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 23 [2021-10-21 20:09:23,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5388590] [2021-10-21 20:09:23,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-21 20:09:23,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:23,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 20:09:23,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2021-10-21 20:09:23,441 INFO L87 Difference]: Start difference. First operand 55733 states and 77778 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:24,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:24,205 INFO L93 Difference]: Finished difference Result 74113 states and 102475 transitions. [2021-10-21 20:09:24,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 20:09:24,206 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2021-10-21 20:09:24,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:24,207 INFO L225 Difference]: With dead ends: 74113 [2021-10-21 20:09:24,208 INFO L226 Difference]: Without dead ends: 1343 [2021-10-21 20:09:24,256 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 201.0ms TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2021-10-21 20:09:24,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2021-10-21 20:09:24,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 585. [2021-10-21 20:09:24,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 581 states have (on average 1.2048192771084338) internal successors, (700), 584 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 700 transitions. [2021-10-21 20:09:24,272 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 700 transitions. Word has length 77 [2021-10-21 20:09:24,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:24,272 INFO L470 AbstractCegarLoop]: Abstraction has 585 states and 700 transitions. [2021-10-21 20:09:24,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:24,273 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 700 transitions. [2021-10-21 20:09:24,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-21 20:09:24,273 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:24,274 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1] [2021-10-21 20:09:24,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:24,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:24,474 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:24,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:24,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1093517585, now seen corresponding path program 8 times [2021-10-21 20:09:24,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:24,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549023064] [2021-10-21 20:09:24,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:24,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:24,554 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:24,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:24,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549023064] [2021-10-21 20:09:24,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549023064] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:24,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573322308] [2021-10-21 20:09:24,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:09:24,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:24,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:24,572 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:24,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-21 20:09:25,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:09:25,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:25,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:09:25,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:25,368 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:25,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573322308] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:25,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:25,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-21 20:09:25,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559192029] [2021-10-21 20:09:25,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 20:09:25,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:25,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 20:09:25,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:09:25,369 INFO L87 Difference]: Start difference. First operand 585 states and 700 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 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 20:09:25,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:25,431 INFO L93 Difference]: Finished difference Result 701 states and 822 transitions. [2021-10-21 20:09:25,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:09:25,432 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 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) Word has length 81 [2021-10-21 20:09:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:25,433 INFO L225 Difference]: With dead ends: 701 [2021-10-21 20:09:25,433 INFO L226 Difference]: Without dead ends: 587 [2021-10-21 20:09:25,433 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.7ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:09:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2021-10-21 20:09:25,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 481. [2021-10-21 20:09:25,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 477 states have (on average 1.180293501048218) internal successors, (563), 480 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:25,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 563 transitions. [2021-10-21 20:09:25,446 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 563 transitions. Word has length 81 [2021-10-21 20:09:25,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:25,446 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 563 transitions. [2021-10-21 20:09:25,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 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 20:09:25,446 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 563 transitions. [2021-10-21 20:09:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-21 20:09:25,448 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:25,448 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1] [2021-10-21 20:09:25,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:25,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:25,671 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:25,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:25,672 INFO L82 PathProgramCache]: Analyzing trace with hash -944170313, now seen corresponding path program 6 times [2021-10-21 20:09:25,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:25,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077517933] [2021-10-21 20:09:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:25,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:25,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:25,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077517933] [2021-10-21 20:09:25,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077517933] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:25,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827122775] [2021-10-21 20:09:25,750 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 20:09:25,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:25,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:25,751 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:25,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-21 20:09:26,227 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-10-21 20:09:26,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:26,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:09:26,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:26,461 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:26,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827122775] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:26,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:26,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-10-21 20:09:26,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186640251] [2021-10-21 20:09:26,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 20:09:26,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:26,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:09:26,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:09:26,462 INFO L87 Difference]: Start difference. First operand 481 states and 563 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 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 20:09:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:26,522 INFO L93 Difference]: Finished difference Result 546 states and 639 transitions. [2021-10-21 20:09:26,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 20:09:26,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 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) Word has length 81 [2021-10-21 20:09:26,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:26,523 INFO L225 Difference]: With dead ends: 546 [2021-10-21 20:09:26,523 INFO L226 Difference]: Without dead ends: 379 [2021-10-21 20:09:26,524 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.0ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:09:26,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-10-21 20:09:26,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2021-10-21 20:09:26,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 375 states have (on average 1.112) internal successors, (417), 378 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:26,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 417 transitions. [2021-10-21 20:09:26,533 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 417 transitions. Word has length 81 [2021-10-21 20:09:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:26,534 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 417 transitions. [2021-10-21 20:09:26,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 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 20:09:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 417 transitions. [2021-10-21 20:09:26,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-21 20:09:26,535 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:26,535 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2021-10-21 20:09:26,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2021-10-21 20:09:26,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-10-21 20:09:26,751 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:26,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:26,752 INFO L82 PathProgramCache]: Analyzing trace with hash -2010450365, now seen corresponding path program 8 times [2021-10-21 20:09:26,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:26,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127831941] [2021-10-21 20:09:26,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:26,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:26,848 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:26,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:26,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127831941] [2021-10-21 20:09:26,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127831941] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:26,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380209213] [2021-10-21 20:09:26,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:09:26,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:26,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:26,850 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:26,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-21 20:09:27,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:09:27,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:27,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 20:09:27,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:27,592 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:27,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380209213] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:27,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:27,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-21 20:09:27,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429666327] [2021-10-21 20:09:27,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 20:09:27,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:27,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 20:09:27,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:09:27,594 INFO L87 Difference]: Start difference. First operand 379 states and 417 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 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 20:09:27,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:27,625 INFO L93 Difference]: Finished difference Result 464 states and 501 transitions. [2021-10-21 20:09:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 20:09:27,626 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 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) Word has length 81 [2021-10-21 20:09:27,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:27,626 INFO L225 Difference]: With dead ends: 464 [2021-10-21 20:09:27,626 INFO L226 Difference]: Without dead ends: 397 [2021-10-21 20:09:27,627 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.3ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:09:27,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-10-21 20:09:27,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 306. [2021-10-21 20:09:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 303 states have (on average 1.1353135313531353) internal successors, (344), 305 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:09:27,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 344 transitions. [2021-10-21 20:09:27,632 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 344 transitions. Word has length 81 [2021-10-21 20:09:27,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:27,632 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 344 transitions. [2021-10-21 20:09:27,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 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 20:09:27,632 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 344 transitions. [2021-10-21 20:09:27,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-21 20:09:27,633 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:27,633 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 1, 1] [2021-10-21 20:09:27,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:27,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:27,848 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:27,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:27,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1856106743, now seen corresponding path program 9 times [2021-10-21 20:09:27,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:27,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868917072] [2021-10-21 20:09:27,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:27,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:27,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:27,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868917072] [2021-10-21 20:09:27,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868917072] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:27,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492584944] [2021-10-21 20:09:27,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 20:09:27,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:27,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:27,944 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:27,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-21 20:09:28,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-21 20:09:28,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:28,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 20:09:28,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:28,869 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:28,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492584944] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:28,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:28,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-21 20:09:28,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432732573] [2021-10-21 20:09:28,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 20:09:28,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:28,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 20:09:28,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:09:28,871 INFO L87 Difference]: Start difference. First operand 306 states and 344 transitions. Second operand has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 11 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 20:09:28,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:28,902 INFO L93 Difference]: Finished difference Result 319 states and 357 transitions. [2021-10-21 20:09:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 20:09:28,903 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 11 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 20:09:28,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:28,904 INFO L225 Difference]: With dead ends: 319 [2021-10-21 20:09:28,904 INFO L226 Difference]: Without dead ends: 242 [2021-10-21 20:09:28,904 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.3ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:09:28,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-21 20:09:28,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 222. [2021-10-21 20:09:28,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 1.1764705882352942) internal successors, (260), 221 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 20:09:29,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 260 transitions. [2021-10-21 20:09:29,015 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 260 transitions. Word has length 90 [2021-10-21 20:09:29,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:29,016 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 260 transitions. [2021-10-21 20:09:29,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 11 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 20:09:29,016 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 260 transitions. [2021-10-21 20:09:29,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-10-21 20:09:29,017 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:29,017 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1] [2021-10-21 20:09:29,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:29,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-10-21 20:09:29,217 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:29,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:29,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1359938858, now seen corresponding path program 7 times [2021-10-21 20:09:29,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:29,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066153966] [2021-10-21 20:09:29,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:29,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:29,306 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:29,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:29,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066153966] [2021-10-21 20:09:29,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066153966] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:29,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772596248] [2021-10-21 20:09:29,307 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 20:09:29,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:29,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:29,308 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:29,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-21 20:09:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:30,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:09:30,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:30,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772596248] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:30,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:30,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-21 20:09:30,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361085884] [2021-10-21 20:09:30,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 20:09:30,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:30,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 20:09:30,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:09:30,273 INFO L87 Difference]: Start difference. First operand 222 states and 260 transitions. Second operand has 11 states, 10 states have (on average 9.1) internal successors, (91), 10 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 20:09:30,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:30,307 INFO L93 Difference]: Finished difference Result 243 states and 280 transitions. [2021-10-21 20:09:30,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:09:30,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.1) internal successors, (91), 10 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) Word has length 91 [2021-10-21 20:09:30,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:30,309 INFO L225 Difference]: With dead ends: 243 [2021-10-21 20:09:30,309 INFO L226 Difference]: Without dead ends: 102 [2021-10-21 20:09:30,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.5ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:09:30,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-21 20:09:30,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-10-21 20:09:30,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.0) internal successors, (101), 101 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 20:09:30,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 101 transitions. [2021-10-21 20:09:30,312 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 101 transitions. Word has length 91 [2021-10-21 20:09:30,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:30,313 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 101 transitions. [2021-10-21 20:09:30,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.1) internal successors, (91), 10 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 20:09:30,313 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 101 transitions. [2021-10-21 20:09:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-10-21 20:09:30,314 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:30,314 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1] [2021-10-21 20:09:30,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-10-21 20:09:30,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-10-21 20:09:30,527 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-10-21 20:09:30,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:30,528 INFO L82 PathProgramCache]: Analyzing trace with hash -498811939, now seen corresponding path program 8 times [2021-10-21 20:09:30,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:09:30,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17472066] [2021-10-21 20:09:30,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:30,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:09:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:30,651 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:30,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:09:30,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17472066] [2021-10-21 20:09:30,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17472066] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:30,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021537778] [2021-10-21 20:09:30,651 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:09:30,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:09:30,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:30,652 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:09:30,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-21 20:09:31,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:09:31,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:09:31,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 20:09:31,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:31,556 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:31,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021537778] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:09:31,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:09:31,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-21 20:09:31,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460551466] [2021-10-21 20:09:31,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 20:09:31,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:09:31,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 20:09:31,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:09:31,558 INFO L87 Difference]: Start difference. First operand 102 states and 101 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 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 20:09:31,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:31,587 INFO L93 Difference]: Finished difference Result 102 states and 101 transitions. [2021-10-21 20:09:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 20:09:31,587 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 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) Word has length 101 [2021-10-21 20:09:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:31,589 INFO L225 Difference]: With dead ends: 102 [2021-10-21 20:09:31,589 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 20:09:31,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.2ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:09:31,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 20:09:31,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 20:09:31,590 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 20:09:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:09:31,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2021-10-21 20:09:31,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:31,590 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:09:31,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 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 20:09:31,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:09:31,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 20:09:31,595 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 20:09:31,596 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 20:09:31,596 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 20:09:31,596 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 20:09:31,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 20:09:31,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 20:09:31,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 20:09:31,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 20:09:31,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 20:09:31,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 20:09:31,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:31,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-10-21 20:09:31,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 20:09:31,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:09:56,034 WARN L207 SmtUtils]: Spent 24.20 s on a formula simplification. DAG size of input: 2171 DAG size of output: 1847 [2021-10-21 20:09:56,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:11:14,453 WARN L207 SmtUtils]: Spent 1.31 m on a formula simplification. DAG size of input: 1809 DAG size of output: 337 [2021-10-21 20:11:14,458 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-21 20:11:14,458 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-10-21 20:11:14,459 INFO L857 garLoopResultBuilder]: For program point L23(lines 23 31) no Hoare annotation was computed. [2021-10-21 20:11:14,459 INFO L857 garLoopResultBuilder]: For program point L19-2(lines 19 33) no Hoare annotation was computed. [2021-10-21 20:11:14,459 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-10-21 20:11:14,459 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-10-21 20:11:14,459 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 20:11:14,459 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-10-21 20:11:14,459 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 20:11:14,459 INFO L857 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-10-21 20:11:14,459 INFO L857 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-10-21 20:11:14,459 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-21 20:11:14,460 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-10-21 20:11:14,460 INFO L857 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-10-21 20:11:14,460 INFO L857 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-10-21 20:11:14,460 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-10-21 20:11:14,460 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-10-21 20:11:14,460 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 20:11:14,460 INFO L857 garLoopResultBuilder]: For program point L29(lines 29 31) no Hoare annotation was computed. [2021-10-21 20:11:14,460 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-10-21 20:11:14,460 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 31) no Hoare annotation was computed. [2021-10-21 20:11:14,460 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-10-21 20:11:14,461 INFO L860 garLoopResultBuilder]: At program point L34(lines 13 35) the Hoare annotation is: true [2021-10-21 20:11:14,461 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-21 20:11:14,461 INFO L857 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-10-21 20:11:14,461 INFO L857 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-10-21 20:11:14,461 INFO L857 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-10-21 20:11:14,461 INFO L857 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-10-21 20:11:14,461 INFO L857 garLoopResultBuilder]: For program point L22(lines 22 32) no Hoare annotation was computed. [2021-10-21 20:11:14,463 INFO L853 garLoopResultBuilder]: At program point L22-1(lines 19 33) the Hoare annotation is: (let ((.cse7 (<= 8 ULTIMATE.start_main_~i~0)) (.cse19 (<= 0 (+ ULTIMATE.start_main_~x~0 2))) (.cse48 (<= 0 (+ ULTIMATE.start_main_~y~0 2147483648))) (.cse8 (<= ULTIMATE.start_main_~y~0 0)) (.cse20 (<= ULTIMATE.start_main_~x~0 2)) (.cse26 (<= ULTIMATE.start_main_~x~0 1)) (.cse5 (<= 0 ULTIMATE.start_main_~x~0)) (.cse0 (<= ULTIMATE.start_main_~x~0 0)) (.cse2 (<= 0 ULTIMATE.start_main_~y~0)) (.cse27 (<= 0 (+ ULTIMATE.start_main_~x~0 1))) (.cse35 (<= 9 ULTIMATE.start_main_~i~0)) (.cse4 (<= ULTIMATE.start_main_~N~0 10))) (let ((.cse39 (or (and .cse26 .cse2 .cse35 .cse4 .cse5) (and .cse0 .cse2 .cse27 .cse35 .cse4))) (.cse40 (<= ULTIMATE.start_main_~x~0 9)) (.cse17 (<= 1 ULTIMATE.start_main_~i~0)) (.cse42 (<= ULTIMATE.start_main_~y~0 8)) (.cse45 (or (and .cse48 .cse0 .cse8 .cse35 .cse4 .cse19) (and .cse48 .cse8 .cse20 .cse35 .cse4 .cse5))) (.cse46 (<= 2 ULTIMATE.start_main_~i~0)) (.cse51 (or (and .cse26 .cse48 .cse7 .cse8 .cse4 .cse5) (and .cse48 .cse7 .cse0 .cse8 .cse27 .cse4))) (.cse43 (<= ULTIMATE.start_main_~y~0 7)) (.cse50 (<= 0 (+ ULTIMATE.start_main_~y~0 7))) (.cse41 (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) (.cse21 (<= 0 (+ ULTIMATE.start_main_~y~0 6))) (.cse25 (<= ULTIMATE.start_main_~y~0 6)) (.cse24 (<= ULTIMATE.start_main_~y~0 4)) (.cse13 (<= ULTIMATE.start_main_~x~0 8)) (.cse12 (<= 0 (+ ULTIMATE.start_main_~x~0 5))) (.cse23 (<= 4 ULTIMATE.start_main_~i~0)) (.cse29 (<= ULTIMATE.start_main_~y~0 1)) (.cse22 (<= ULTIMATE.start_main_~x~0 5)) (.cse49 (<= 0 (+ ULTIMATE.start_main_~x~0 7))) (.cse16 (<= 5 ULTIMATE.start_main_~i~0)) (.cse10 (<= ULTIMATE.start_main_~y~0 2)) (.cse1 (<= ULTIMATE.start_main_~y~0 3)) (.cse36 (<= 0 (+ ULTIMATE.start_main_~x~0 4))) (.cse9 (<= 0 (+ ULTIMATE.start_main_~y~0 5))) (.cse14 (<= 0 (+ ULTIMATE.start_main_~x~0 6))) (.cse11 (<= 7 ULTIMATE.start_main_~i~0)) (.cse6 (<= 0 (+ ULTIMATE.start_main_~x~0 3))) (.cse3 (<= 3 ULTIMATE.start_main_~i~0)) (.cse31 (<= 0 (+ ULTIMATE.start_main_~x~0 8))) (.cse18 (<= 0 (+ ULTIMATE.start_main_~y~0 1))) (.cse47 (<= ULTIMATE.start_main_~x~0 7)) (.cse30 (<= 0 (+ ULTIMATE.start_main_~y~0 3))) (.cse15 (<= ULTIMATE.start_main_~x~0 3)) (.cse37 (<= ULTIMATE.start_main_~y~0 5)) (.cse28 (<= 10 ULTIMATE.start_main_~i~0)) (.cse34 (<= 0 (+ ULTIMATE.start_main_~y~0 4))) (.cse44 (<= ULTIMATE.start_main_~x~0 6)) (.cse38 (<= 6 ULTIMATE.start_main_~i~0)) (.cse33 (<= ULTIMATE.start_main_~x~0 4)) (.cse32 (<= 0 (+ ULTIMATE.start_main_~y~0 2)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse0 .cse8 .cse4 .cse9) (and .cse10 .cse0 .cse2 .cse4 .cse11 .cse12) (and .cse13 .cse7 .cse8 .cse2 .cse4 .cse5) (and .cse14 .cse10 .cse7 .cse0 .cse2 .cse4) (and .cse15 .cse16 .cse10 .cse2 .cse4 .cse5) (and .cse0 .cse8 .cse17 .cse18 .cse4 .cse5) (and .cse8 (or (and .cse7 .cse0 .cse4 .cse19) (and .cse7 .cse20 .cse4 .cse5)) .cse21) (and .cse22 .cse7 .cse1 .cse2 .cse4 .cse5) (and .cse23 .cse0 .cse24 .cse2 .cse4 .cse5) (and .cse25 .cse26 .cse2 .cse4 .cse11 .cse5) (and .cse1 (or (and .cse23 .cse26 .cse2 .cse4 .cse5) (and .cse23 .cse0 .cse2 .cse27 .cse4))) (and .cse28 .cse14 .cse0 .cse24 .cse2 .cse4) (and .cse6 .cse16 .cse10 .cse0 .cse2 .cse4) (and .cse0 .cse17 .cse2 .cse4 .cse5 .cse29) (and .cse16 .cse0 .cse8 .cse4 .cse30 .cse19) (and .cse0 .cse2 .cse3 .cse4 .cse19 .cse29) (and .cse28 .cse31 .cse0 .cse8 .cse4 .cse32) (and .cse16 .cse8 .cse20 .cse4 .cse30 .cse5) (and .cse33 .cse34 .cse7 .cse8 .cse4 .cse5) (and .cse6 .cse0 .cse24 .cse2 .cse4 .cse11) (and .cse34 .cse0 .cse8 .cse35 .cse4 .cse12) (and .cse15 .cse8 .cse2 .cse3 .cse4 .cse5) (and (or (and .cse16 .cse0 .cse2 .cse27 .cse4) (and .cse16 .cse26 .cse2 .cse4 .cse5)) .cse24) (and .cse8 .cse30 (or (and .cse23 .cse26 .cse4 .cse5) (and .cse23 .cse0 .cse27 .cse4))) (and .cse20 .cse2 .cse3 .cse4 .cse5 .cse29) (and .cse23 .cse33 .cse8 .cse2 .cse4 .cse5) (and .cse16 .cse0 .cse2 .cse4 .cse36 .cse29) (and .cse28 .cse22 .cse37 .cse2 .cse4 .cse5) (and .cse38 .cse0 .cse8 .cse4 .cse5 .cse21) (and (<= ULTIMATE.start_main_~y~0 9) .cse39 .cse5) (and .cse0 .cse8 .cse35 .cse4 .cse36 .cse9) (and .cse13 .cse28 .cse10 .cse2 .cse4 .cse5) (and .cse6 .cse34 .cse0 .cse8 .cse4 .cse11) (and .cse7 .cse0 .cse24 .cse2 .cse4 .cse36) (and .cse28 .cse22 .cse8 .cse4 .cse9 .cse5) (and .cse40 .cse28 .cse2 .cse4 .cse29 .cse41) (and .cse39 .cse42) (and .cse6 .cse38 .cse0 .cse1 .cse2 .cse4) (and .cse26 .cse10 .cse2 .cse3 .cse4 .cse5) (and .cse23 .cse10 .cse20 .cse2 .cse4 .cse5) (and .cse0 .cse2 .cse4 .cse11 .cse43 .cse5) (and .cse2 .cse4 .cse11 .cse44 .cse5 .cse29) (and .cse0 .cse2 .cse35 .cse4 .cse43 .cse19) (and .cse38 .cse10 .cse33 .cse2 .cse4 .cse5) (and (<= 0 (+ ULTIMATE.start_main_~y~0 9)) .cse27 .cse45) (and .cse28 .cse0 .cse8 .cse4 .cse36 .cse21) (and .cse25 .cse6 .cse0 .cse2 .cse35 .cse4) (and .cse8 (or (and .cse26 .cse4 .cse11 .cse5) (and .cse0 .cse27 .cse4 .cse11)) .cse21) (and .cse23 .cse34 .cse0 .cse8 .cse4 .cse5) (and .cse38 .cse0 .cse2 .cse4 .cse12 .cse29) (and .cse34 (or (and .cse16 .cse0 .cse27 .cse4) (and .cse16 .cse26 .cse4 .cse5)) .cse8) (and .cse40 .cse28 .cse8 .cse18 .cse4 .cse41) (and (or (and .cse23 .cse0 .cse8 .cse4 .cse19) (and .cse23 .cse8 .cse20 .cse4 .cse5)) .cse32) (and .cse28 .cse31 .cse10 .cse0 .cse2 .cse4) (and .cse46 .cse0 .cse8 .cse4 .cse32 .cse5) (and .cse40 .cse8 .cse2 .cse35 .cse4 .cse5) (and .cse6 .cse23 .cse0 .cse2 .cse4 .cse29) (and .cse22 .cse24 .cse2 .cse35 .cse4 .cse5) (and .cse47 .cse7 .cse2 .cse4 .cse5 .cse29) (and .cse15 .cse8 .cse35 .cse4 .cse5 .cse21) (and .cse25 .cse7 .cse20 .cse2 .cse4 .cse5) (and .cse38 .cse26 .cse37 .cse2 .cse4 .cse5) (and .cse28 .cse47 .cse1 .cse2 .cse4 .cse5) (and .cse15 .cse16 .cse8 .cse4 .cse32 .cse5) (and .cse25 .cse28 .cse33 .cse2 .cse4 .cse5) (and .cse38 .cse22 .cse2 .cse4 .cse5 .cse29) (and .cse0 .cse8 .cse2 .cse35 .cse4 (<= 0 (+ ULTIMATE.start_main_~x~0 9))) (and .cse22 .cse16 .cse8 .cse2 .cse4 .cse5) (and .cse14 .cse0 .cse1 .cse2 .cse35 .cse4) (and .cse16 .cse1 .cse20 .cse2 .cse4 .cse5) (and .cse28 .cse0 .cse2 .cse4 .cse19) (and .cse37 .cse20 .cse2 .cse4 .cse11 .cse5) (and .cse15 .cse28 .cse48 .cse8 .cse4 .cse5) (and .cse7 .cse0 .cse8 .cse18 .cse49 .cse4) (and .cse25 .cse0 .cse2 .cse27 .cse4 .cse11) (and .cse2 (or (and (or (and .cse46 .cse26 .cse4 .cse5) (and .cse46 .cse0 .cse27 .cse4)) .cse29) (and .cse46 .cse8 .cse20 .cse4 .cse5))) (and .cse20 .cse2 .cse35 .cse4 .cse43 .cse5) (and .cse28 .cse24 .cse2 .cse4 .cse44 .cse5) (and .cse26 .cse7 .cse2 .cse4 .cse43 .cse5) (and .cse25 .cse38 .cse0 .cse2 .cse4 .cse5) (and .cse7 .cse0 .cse1 .cse2 .cse4 .cse12) (and .cse10 .cse7 .cse2 .cse4 .cse44 .cse5) (and .cse6 .cse7 .cse0 .cse37 .cse2 .cse4) (and .cse50 .cse51) (and .cse16 .cse0 .cse37 .cse2 .cse4 .cse5) (and .cse0 .cse8 .cse2 (<= 0 ULTIMATE.start_main_~i~0) .cse4 .cse5) (and .cse16 .cse0 .cse8 .cse4 .cse9 .cse5) (and (or (and .cse26 .cse17 .cse2 .cse4 .cse5) (and .cse0 .cse17 .cse2 .cse27 .cse4)) .cse8) (and .cse15 .cse7 .cse8 .cse4 .cse9 .cse5) (and .cse25 .cse15 .cse2 .cse35 .cse4 .cse5) (and .cse22 .cse10 .cse2 .cse4 .cse11 .cse5) (and .cse7 .cse0 .cse2 .cse4 .cse5 .cse42) (and .cse0 .cse8 .cse4 .cse11 .cse30 .cse36) (and .cse47 .cse7 .cse8 .cse18 .cse4 .cse5) (and (or (and .cse26 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse27 .cse4)) .cse8 .cse32) (and .cse16 .cse33 .cse8 .cse18 .cse4 .cse5) (and .cse23 .cse10 .cse0 .cse2 .cse4 .cse19) (and .cse28 .cse33 .cse8 .cse4 .cse5 .cse21) (and .cse38 .cse14 .cse0 .cse8 .cse2 .cse4) (and .cse22 .cse8 .cse4 .cse11 .cse32 .cse5) (and .cse15 .cse24 .cse2 .cse4 .cse11 .cse5) (and .cse10 .cse0 .cse2 .cse3 .cse27 .cse4) (and .cse38 .cse0 .cse37 .cse2 .cse27 .cse4) (and .cse7 .cse0 .cse2 .cse49 .cse4 .cse29) (and .cse46 .cse0 .cse8 .cse2 .cse4 .cse19) (and .cse33 .cse37 .cse2 .cse35 .cse4 .cse5) (and .cse22 .cse7 .cse8 .cse4 .cse30 .cse5) (and .cse6 .cse23 .cse0 .cse8 .cse18 .cse4) (and .cse38 .cse0 .cse8 .cse4 .cse32 .cse36) (and .cse6 .cse28 .cse48 .cse0 .cse8 .cse4) (and .cse28 .cse0 .cse37 .cse2 .cse4 .cse12) (and .cse38 .cse8 .cse2 .cse4 .cse44 .cse5) (and .cse6 .cse38 .cse0 .cse8 .cse4 .cse30) (and .cse50 .cse45) (and .cse18 (or (and .cse46 .cse0 .cse8 .cse27 .cse4) (and .cse46 .cse26 .cse8 .cse4 .cse5))) (and .cse28 .cse14 .cse34 .cse0 .cse8 .cse4) (and .cse6 .cse28 .cse0 .cse2 .cse4 .cse43) (and .cse0 .cse37 .cse2 .cse4 .cse11 .cse19) (and .cse7 .cse8 .cse4 .cse32 .cse44 .cse5) (and .cse7 .cse0 .cse8 .cse4 .cse30 .cse12) (and .cse13 .cse28 .cse8 .cse4 .cse32 .cse5) (and (or (and .cse0 .cse8 .cse3 .cse4 .cse19) (and .cse8 .cse20 .cse3 .cse4 .cse5)) .cse18) (and .cse23 .cse0 .cse8 .cse2 .cse4 .cse36) (and .cse0 .cse37 .cse2 .cse35 .cse4 .cse36) (and .cse46 .cse10 .cse0 .cse2 .cse4 .cse5) (and .cse0 .cse24 .cse2 .cse35 .cse4 .cse12) (and .cse38 .cse0 .cse24 .cse2 .cse4 .cse19) (and .cse33 .cse8 .cse35 .cse4 .cse9 .cse5) (and .cse0 .cse8 .cse2 .cse49 .cse4 .cse11) (and .cse15 .cse34 .cse8 .cse4 .cse11 .cse5) (and .cse47 .cse8 .cse2 .cse4 .cse11 .cse5) (and .cse15 .cse28 .cse2 .cse4 .cse43 .cse5) (and .cse8 .cse18 .cse4 .cse11 .cse44 .cse5) (and .cse10 .cse47 .cse2 .cse35 .cse4 .cse5) (and .cse15 .cse38 .cse1 .cse2 .cse4 .cse5) (and .cse15 .cse38 .cse8 .cse4 .cse30 .cse5) (and .cse0 .cse8 .cse49 .cse35 .cse4 .cse32) (and .cse22 .cse34 .cse8 .cse35 .cse4 .cse5) (and (<= 0 (+ ULTIMATE.start_main_~y~0 8)) .cse51 .cse5) (and .cse7 .cse0 .cse2 .cse27 .cse4 .cse43) (and .cse6 .cse16 .cse0 .cse8 .cse4 .cse32) (and .cse50 .cse0 .cse8 .cse4 .cse11 .cse5) (and .cse47 .cse8 .cse35 .cse4 .cse32 .cse5) (and .cse25 .cse28 .cse0 .cse2 .cse4 .cse36) (and .cse28 .cse8 .cse2 .cse4 .cse41) (and .cse31 .cse0 .cse2 .cse35 .cse4 .cse29) (and .cse15 .cse23 .cse2 .cse4 .cse5 .cse29) (and .cse38 .cse0 .cse8 .cse18 .cse4 .cse12) (and .cse6 .cse0 .cse8 .cse35 .cse4 .cse21) (and .cse10 .cse0 .cse2 .cse49 .cse35 .cse4) (and .cse16 .cse33 .cse2 .cse4 .cse5 .cse29) (and .cse14 .cse7 .cse0 .cse8 .cse4 .cse32) (and .cse28 .cse20 .cse2 .cse4 .cse5) (and .cse13 .cse8 .cse18 .cse35 .cse4 .cse5) (and .cse34 .cse7 .cse0 .cse8 .cse4 .cse36) (and .cse16 .cse0 .cse8 .cse2 .cse4 .cse12) (and .cse28 .cse0 .cse8 .cse4 .cse12 .cse9) (and .cse38 .cse34 .cse8 .cse20 .cse4 .cse5) (and .cse38 .cse34 .cse0 .cse8 .cse4 .cse19) (and .cse38 .cse24 .cse20 .cse2 .cse4 .cse5) (and .cse25 .cse7 .cse0 .cse2 .cse4 .cse19) (and .cse33 .cse7 .cse24 .cse2 .cse4 .cse5) (and .cse13 .cse2 .cse35 .cse4 .cse5 .cse29) (and .cse14 .cse0 .cse8 .cse35 .cse4 .cse30) (and .cse1 .cse2 .cse35 .cse4 .cse44 .cse5) (and .cse8 (or (and .cse38 .cse26 .cse4 .cse5) (and .cse38 .cse0 .cse27 .cse4)) .cse9) (and .cse0 .cse8 .cse4 .cse11 .cse32 .cse12) (and .cse28 .cse0 .cse1 .cse2 .cse49 .cse4) (and .cse15 .cse23 .cse8 .cse18 .cse4 .cse5) (and .cse33 .cse1 .cse2 .cse4 .cse11 .cse5) (and .cse14 .cse0 .cse2 .cse4 .cse11 .cse29) (and .cse38 .cse22 .cse8 .cse18 .cse4 .cse5) (and .cse31 .cse7 .cse0 .cse8 .cse2 .cse4) (and .cse16 .cse0 .cse1 .cse2 .cse4 .cse19) (and .cse28 .cse0 .cse8 .cse49 .cse4 .cse30) (and .cse16 .cse0 .cse8 .cse18 .cse4 .cse36) (and .cse38 .cse10 .cse0 .cse2 .cse4 .cse36) (and .cse0 .cse1 .cse2 .cse4 .cse11 .cse36) (and .cse33 .cse8 .cse4 .cse11 .cse30 .cse5) (and .cse0 .cse8 .cse3 .cse4 .cse30 .cse5) (and (or (and .cse8 .cse20 .cse4 .cse11 .cse5) (and .cse0 .cse8 .cse4 .cse11 .cse19)) .cse9) (and .cse14 .cse0 .cse8 .cse18 .cse4 .cse11) (and .cse6 .cse0 .cse8 .cse2 .cse3 .cse4) (and .cse31 .cse0 .cse8 .cse18 .cse35 .cse4) (and .cse28 .cse47 .cse8 .cse4 .cse30 .cse5) (and .cse8 .cse35 .cse4 .cse30 .cse44 .cse5) (and .cse15 .cse7 .cse37 .cse2 .cse4 .cse5) (and .cse28 .cse34 .cse8 .cse4 .cse44 .cse5) (and .cse38 .cse33 .cse8 .cse4 .cse32 .cse5)))) [2021-10-21 20:11:14,464 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-10-21 20:11:14,468 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:11:14,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:11:14 BoogieIcfgContainer [2021-10-21 20:11:14,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:11:14,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:11:14,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:11:14,554 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:11:14,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:08:43" (3/4) ... [2021-10-21 20:11:14,557 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:11:14,566 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-21 20:11:14,566 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 20:11:14,610 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:11:14,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:11:14,611 INFO L168 Benchmark]: Toolchain (without parser) took 151844.89 ms. Allocated memory was 107.0 MB in the beginning and 7.1 GB in the end (delta: 7.0 GB). Free memory was 74.4 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.1 GB. [2021-10-21 20:11:14,611 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:11:14,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.78 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 82.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:14,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.11 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:11:14,612 INFO L168 Benchmark]: Boogie Preprocessor took 30.24 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 80.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:14,612 INFO L168 Benchmark]: RCFGBuilder took 249.62 ms. Allocated memory is still 107.0 MB. Free memory was 80.3 MB in the beginning and 71.7 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:14,613 INFO L168 Benchmark]: TraceAbstraction took 151209.71 ms. Allocated memory was 107.0 MB in the beginning and 7.1 GB in the end (delta: 7.0 GB). Free memory was 71.0 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 5.1 GB. Max. memory is 16.1 GB. [2021-10-21 20:11:14,613 INFO L168 Benchmark]: Witness Printer took 56.93 ms. Allocated memory is still 7.1 GB. Free memory was 3.1 GB in the beginning and 3.1 GB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:14,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 107.0 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 263.78 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 82.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.11 ms. Allocated memory is still 107.0 MB. Free memory was 82.7 MB in the beginning and 81.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.24 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 80.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 249.62 ms. Allocated memory is still 107.0 MB. Free memory was 80.3 MB in the beginning and 71.7 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 151209.71 ms. Allocated memory was 107.0 MB in the beginning and 7.1 GB in the end (delta: 7.0 GB). Free memory was 71.0 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 5.1 GB. Max. memory is 16.1 GB. * Witness Printer took 56.93 ms. Allocated memory is still 7.1 GB. Free memory was 3.1 GB in the beginning and 3.1 GB in the end (delta: 5.2 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: 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, 31 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 151068.3ms, OverallIterations: 47, TraceHistogramMax: 11, EmptinessCheckTime: 116.8ms, AutomataDifference: 9558.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 102648.2ms, InitialAbstractionConstructionTime: 10.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1238 SDtfs, 6000 SDslu, 4376 SDs, 0 SdLazy, 1247 SolverSat, 1006 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1435.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2150 GetRequests, 1898 SyntacticMatches, 1 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1133.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55733occurred in iteration=40, InterpolantAutomatonStates: 333, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10588.4ms AutomataMinimizationTime, 47 MinimizatonAttempts, 130567 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 1768 NumberOfFragments, 4369 HoareAnnotationTreeSize, 2 FomulaSimplifications, 56416 FormulaSimplificationTreeSizeReduction, 24232.4ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 66451 FormulaSimplificationTreeSizeReductionInter, 78378.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 171.1ms SsaConstructionTime, 909.0ms SatisfiabilityAnalysisTime, 8373.6ms InterpolantComputationTime, 3989 NumberOfCodeBlocks, 3981 NumberOfCodeBlocksAsserted, 179 NumberOfCheckSat, 3903 ConstructedInterpolants, 0 QuantifiedInterpolants, 15175 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4492 ConjunctsInSsa, 271 ConjunctsInUnsatCore, 86 InterpolantComputations, 9 PerfectInterpolantSequences, 429/11840 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 10 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((x <= 0 && y <= 3) && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x) || (((((0 <= x + 3 && 8 <= i) && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 5)) || (((((y <= 2 && x <= 0) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x + 5)) || (((((x <= 8 && 8 <= i) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x)) || (((((0 <= x + 6 && y <= 2) && 8 <= i) && x <= 0) && 0 <= y) && N <= 10)) || (((((x <= 3 && 5 <= i) && y <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 0 && y <= 0) && 1 <= i) && 0 <= y + 1) && N <= 10) && 0 <= x)) || ((y <= 0 && ((((8 <= i && x <= 0) && N <= 10) && 0 <= x + 2) || (((8 <= i && x <= 2) && N <= 10) && 0 <= x))) && 0 <= y + 6)) || (((((x <= 5 && 8 <= i) && y <= 3) && 0 <= y) && N <= 10) && 0 <= x)) || (((((4 <= i && x <= 0) && y <= 4) && 0 <= y) && N <= 10) && 0 <= x)) || (((((y <= 6 && x <= 1) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (y <= 3 && (((((4 <= i && x <= 1) && 0 <= y) && N <= 10) && 0 <= x) || ((((4 <= i && x <= 0) && 0 <= y) && 0 <= x + 1) && N <= 10)))) || (((((10 <= i && 0 <= x + 6) && x <= 0) && y <= 4) && 0 <= y) && N <= 10)) || (((((0 <= x + 3 && 5 <= i) && y <= 2) && x <= 0) && 0 <= y) && N <= 10)) || (((((x <= 0 && 1 <= i) && 0 <= y) && N <= 10) && 0 <= x) && y <= 1)) || (((((5 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x + 2)) || (((((x <= 0 && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x + 2) && y <= 1)) || (((((10 <= i && 0 <= x + 8) && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 2)) || (((((5 <= i && y <= 0) && x <= 2) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((x <= 4 && 0 <= y + 4) && 8 <= i) && y <= 0) && N <= 10) && 0 <= x)) || (((((0 <= x + 3 && x <= 0) && y <= 4) && 0 <= y) && N <= 10) && 7 <= i)) || (((((0 <= y + 4 && x <= 0) && y <= 0) && 9 <= i) && N <= 10) && 0 <= x + 5)) || (((((x <= 3 && y <= 0) && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x)) || ((((((5 <= i && x <= 0) && 0 <= y) && 0 <= x + 1) && N <= 10) || ((((5 <= i && x <= 1) && 0 <= y) && N <= 10) && 0 <= x)) && y <= 4)) || ((y <= 0 && 0 <= y + 3) && ((((4 <= i && x <= 1) && N <= 10) && 0 <= x) || (((4 <= i && x <= 0) && 0 <= x + 1) && N <= 10)))) || (((((x <= 2 && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x) && y <= 1)) || (((((4 <= i && x <= 4) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x)) || (((((5 <= i && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 4) && y <= 1)) || (((((10 <= i && x <= 5) && y <= 5) && 0 <= y) && N <= 10) && 0 <= x)) || (((((6 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= x) && 0 <= y + 6)) || ((y <= 9 && (((((x <= 1 && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x) || ((((x <= 0 && 0 <= y) && 0 <= x + 1) && 9 <= i) && N <= 10))) && 0 <= x)) || (((((x <= 0 && y <= 0) && 9 <= i) && N <= 10) && 0 <= x + 4) && 0 <= y + 5)) || (((((x <= 8 && 10 <= i) && y <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((0 <= x + 3 && 0 <= y + 4) && x <= 0) && y <= 0) && N <= 10) && 7 <= i)) || (((((8 <= i && x <= 0) && y <= 4) && 0 <= y) && N <= 10) && 0 <= x + 4)) || (((((10 <= i && x <= 5) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((x <= 9 && 10 <= i) && 0 <= y) && N <= 10) && y <= 1) && 0 <= x + 2147483648)) || ((((((x <= 1 && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x) || ((((x <= 0 && 0 <= y) && 0 <= x + 1) && 9 <= i) && N <= 10)) && y <= 8)) || (((((0 <= x + 3 && 6 <= i) && x <= 0) && y <= 3) && 0 <= y) && N <= 10)) || (((((x <= 1 && y <= 2) && 0 <= y) && 3 <= i) && N <= 10) && 0 <= x)) || (((((4 <= i && y <= 2) && x <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 0 && 0 <= y) && N <= 10) && 7 <= i) && y <= 7) && 0 <= x)) || (((((0 <= y && N <= 10) && 7 <= i) && x <= 6) && 0 <= x) && y <= 1)) || (((((x <= 0 && 0 <= y) && 9 <= i) && N <= 10) && y <= 7) && 0 <= x + 2)) || (((((6 <= i && y <= 2) && x <= 4) && 0 <= y) && N <= 10) && 0 <= x)) || ((0 <= y + 9 && 0 <= x + 1) && ((((((0 <= y + 2147483648 && x <= 0) && y <= 0) && 9 <= i) && N <= 10) && 0 <= x + 2) || (((((0 <= y + 2147483648 && y <= 0) && x <= 2) && 9 <= i) && N <= 10) && 0 <= x)))) || (((((10 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= x + 4) && 0 <= y + 6)) || (((((y <= 6 && 0 <= x + 3) && x <= 0) && 0 <= y) && 9 <= i) && N <= 10)) || ((y <= 0 && ((((x <= 1 && N <= 10) && 7 <= i) && 0 <= x) || (((x <= 0 && 0 <= x + 1) && N <= 10) && 7 <= i))) && 0 <= y + 6)) || (((((4 <= i && 0 <= y + 4) && x <= 0) && y <= 0) && N <= 10) && 0 <= x)) || (((((6 <= i && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 5) && y <= 1)) || ((0 <= y + 4 && ((((5 <= i && x <= 0) && 0 <= x + 1) && N <= 10) || (((5 <= i && x <= 1) && N <= 10) && 0 <= x))) && y <= 0)) || (((((x <= 9 && 10 <= i) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x + 2147483648)) || ((((((4 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= x + 2) || ((((4 <= i && y <= 0) && x <= 2) && N <= 10) && 0 <= x)) && 0 <= y + 2)) || (((((10 <= i && 0 <= x + 8) && y <= 2) && x <= 0) && 0 <= y) && N <= 10)) || (((((2 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((x <= 9 && y <= 0) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x)) || (((((0 <= x + 3 && 4 <= i) && x <= 0) && 0 <= y) && N <= 10) && y <= 1)) || (((((x <= 5 && y <= 4) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x)) || (((((x <= 7 && 8 <= i) && 0 <= y) && N <= 10) && 0 <= x) && y <= 1)) || (((((x <= 3 && y <= 0) && 9 <= i) && N <= 10) && 0 <= x) && 0 <= y + 6)) || (((((y <= 6 && 8 <= i) && x <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((6 <= i && x <= 1) && y <= 5) && 0 <= y) && N <= 10) && 0 <= x)) || (((((10 <= i && x <= 7) && y <= 3) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 3 && 5 <= i) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((y <= 6 && 10 <= i) && x <= 4) && 0 <= y) && N <= 10) && 0 <= x)) || (((((6 <= i && x <= 5) && 0 <= y) && N <= 10) && 0 <= x) && y <= 1)) || (((((x <= 0 && y <= 0) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x + 9)) || (((((x <= 5 && 5 <= i) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x)) || (((((0 <= x + 6 && x <= 0) && y <= 3) && 0 <= y) && 9 <= i) && N <= 10)) || (((((5 <= i && y <= 3) && x <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || ((((10 <= i && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((y <= 5 && x <= 2) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (((((x <= 3 && 10 <= i) && 0 <= y + 2147483648) && y <= 0) && N <= 10) && 0 <= x)) || (((((8 <= i && x <= 0) && y <= 0) && 0 <= y + 1) && 0 <= x + 7) && N <= 10)) || (((((y <= 6 && x <= 0) && 0 <= y) && 0 <= x + 1) && N <= 10) && 7 <= i)) || (0 <= y && ((((((2 <= i && x <= 1) && N <= 10) && 0 <= x) || (((2 <= i && x <= 0) && 0 <= x + 1) && N <= 10)) && y <= 1) || ((((2 <= i && y <= 0) && x <= 2) && N <= 10) && 0 <= x)))) || (((((x <= 2 && 0 <= y) && 9 <= i) && N <= 10) && y <= 7) && 0 <= x)) || (((((10 <= i && y <= 4) && 0 <= y) && N <= 10) && x <= 6) && 0 <= x)) || (((((x <= 1 && 8 <= i) && 0 <= y) && N <= 10) && y <= 7) && 0 <= x)) || (((((y <= 6 && 6 <= i) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x)) || (((((8 <= i && x <= 0) && y <= 3) && 0 <= y) && N <= 10) && 0 <= x + 5)) || (((((y <= 2 && 8 <= i) && 0 <= y) && N <= 10) && x <= 6) && 0 <= x)) || (((((0 <= x + 3 && 8 <= i) && x <= 0) && y <= 5) && 0 <= y) && N <= 10)) || (0 <= y + 7 && ((((((x <= 1 && 0 <= y + 2147483648) && 8 <= i) && y <= 0) && N <= 10) && 0 <= x) || (((((0 <= y + 2147483648 && 8 <= i) && x <= 0) && y <= 0) && 0 <= x + 1) && N <= 10)))) || (((((5 <= i && x <= 0) && y <= 5) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 0 && y <= 0) && 0 <= y) && 0 <= i) && N <= 10) && 0 <= x)) || (((((5 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || ((((((x <= 1 && 1 <= i) && 0 <= y) && N <= 10) && 0 <= x) || ((((x <= 0 && 1 <= i) && 0 <= y) && 0 <= x + 1) && N <= 10)) && y <= 0)) || (((((x <= 3 && 8 <= i) && y <= 0) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((y <= 6 && x <= 3) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x)) || (((((x <= 5 && y <= 2) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (((((8 <= i && x <= 0) && 0 <= y) && N <= 10) && 0 <= x) && y <= 8)) || (((((x <= 0 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 3) && 0 <= x + 4)) || (((((x <= 7 && 8 <= i) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x)) || ((((((x <= 1 && 3 <= i) && N <= 10) && 0 <= x) || (((x <= 0 && 3 <= i) && 0 <= x + 1) && N <= 10)) && y <= 0) && 0 <= y + 2)) || (((((5 <= i && x <= 4) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x)) || (((((4 <= i && y <= 2) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((10 <= i && x <= 4) && y <= 0) && N <= 10) && 0 <= x) && 0 <= y + 6)) || (((((6 <= i && 0 <= x + 6) && x <= 0) && y <= 0) && 0 <= y) && N <= 10)) || (((((x <= 5 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 2) && 0 <= x)) || (((((x <= 3 && y <= 4) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (((((y <= 2 && x <= 0) && 0 <= y) && 3 <= i) && 0 <= x + 1) && N <= 10)) || (((((6 <= i && x <= 0) && y <= 5) && 0 <= y) && 0 <= x + 1) && N <= 10)) || (((((8 <= i && x <= 0) && 0 <= y) && 0 <= x + 7) && N <= 10) && y <= 1)) || (((((2 <= i && x <= 0) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((x <= 4 && y <= 5) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x)) || (((((x <= 5 && 8 <= i) && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((0 <= x + 3 && 4 <= i) && x <= 0) && y <= 0) && 0 <= y + 1) && N <= 10)) || (((((6 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x + 4)) || (((((0 <= x + 3 && 10 <= i) && 0 <= y + 2147483648) && x <= 0) && y <= 0) && N <= 10)) || (((((10 <= i && x <= 0) && y <= 5) && 0 <= y) && N <= 10) && 0 <= x + 5)) || (((((6 <= i && y <= 0) && 0 <= y) && N <= 10) && x <= 6) && 0 <= x)) || (((((0 <= x + 3 && 6 <= i) && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 3)) || (0 <= y + 7 && ((((((0 <= y + 2147483648 && x <= 0) && y <= 0) && 9 <= i) && N <= 10) && 0 <= x + 2) || (((((0 <= y + 2147483648 && y <= 0) && x <= 2) && 9 <= i) && N <= 10) && 0 <= x)))) || (0 <= y + 1 && (((((2 <= i && x <= 0) && y <= 0) && 0 <= x + 1) && N <= 10) || ((((2 <= i && x <= 1) && y <= 0) && N <= 10) && 0 <= x)))) || (((((10 <= i && 0 <= x + 6) && 0 <= y + 4) && x <= 0) && y <= 0) && N <= 10)) || (((((0 <= x + 3 && 10 <= i) && x <= 0) && 0 <= y) && N <= 10) && y <= 7)) || (((((x <= 0 && y <= 5) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x + 2)) || (((((8 <= i && y <= 0) && N <= 10) && 0 <= y + 2) && x <= 6) && 0 <= x)) || (((((8 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x + 5)) || (((((x <= 8 && 10 <= i) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x)) || ((((((x <= 0 && y <= 0) && 3 <= i) && N <= 10) && 0 <= x + 2) || ((((y <= 0 && x <= 2) && 3 <= i) && N <= 10) && 0 <= x)) && 0 <= y + 1)) || (((((4 <= i && x <= 0) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x + 4)) || (((((x <= 0 && y <= 5) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x + 4)) || (((((2 <= i && y <= 2) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 0 && y <= 4) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x + 5)) || (((((6 <= i && x <= 0) && y <= 4) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((x <= 4 && y <= 0) && 9 <= i) && N <= 10) && 0 <= y + 5) && 0 <= x)) || (((((x <= 0 && y <= 0) && 0 <= y) && 0 <= x + 7) && N <= 10) && 7 <= i)) || (((((x <= 3 && 0 <= y + 4) && y <= 0) && N <= 10) && 7 <= i) && 0 <= x)) || (((((x <= 7 && y <= 0) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (((((x <= 3 && 10 <= i) && 0 <= y) && N <= 10) && y <= 7) && 0 <= x)) || (((((y <= 0 && 0 <= y + 1) && N <= 10) && 7 <= i) && x <= 6) && 0 <= x)) || (((((y <= 2 && x <= 7) && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x)) || (((((x <= 3 && 6 <= i) && y <= 3) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 3 && 6 <= i) && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((x <= 0 && y <= 0) && 0 <= x + 7) && 9 <= i) && N <= 10) && 0 <= y + 2)) || (((((x <= 5 && 0 <= y + 4) && y <= 0) && 9 <= i) && N <= 10) && 0 <= x)) || ((0 <= y + 8 && ((((((x <= 1 && 0 <= y + 2147483648) && 8 <= i) && y <= 0) && N <= 10) && 0 <= x) || (((((0 <= y + 2147483648 && 8 <= i) && x <= 0) && y <= 0) && 0 <= x + 1) && N <= 10))) && 0 <= x)) || (((((8 <= i && x <= 0) && 0 <= y) && 0 <= x + 1) && N <= 10) && y <= 7)) || (((((0 <= x + 3 && 5 <= i) && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 2)) || (((((0 <= y + 7 && x <= 0) && y <= 0) && N <= 10) && 7 <= i) && 0 <= x)) || (((((x <= 7 && y <= 0) && 9 <= i) && N <= 10) && 0 <= y + 2) && 0 <= x)) || (((((y <= 6 && 10 <= i) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 4)) || ((((10 <= i && y <= 0) && 0 <= y) && N <= 10) && 0 <= x + 2147483648)) || (((((0 <= x + 8 && x <= 0) && 0 <= y) && 9 <= i) && N <= 10) && y <= 1)) || (((((x <= 3 && 4 <= i) && 0 <= y) && N <= 10) && 0 <= x) && y <= 1)) || (((((6 <= i && x <= 0) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x + 5)) || (((((0 <= x + 3 && x <= 0) && y <= 0) && 9 <= i) && N <= 10) && 0 <= y + 6)) || (((((y <= 2 && x <= 0) && 0 <= y) && 0 <= x + 7) && 9 <= i) && N <= 10)) || (((((5 <= i && x <= 4) && 0 <= y) && N <= 10) && 0 <= x) && y <= 1)) || (((((0 <= x + 6 && 8 <= i) && x <= 0) && y <= 0) && N <= 10) && 0 <= y + 2)) || ((((10 <= i && x <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 8 && y <= 0) && 0 <= y + 1) && 9 <= i) && N <= 10) && 0 <= x)) || (((((0 <= y + 4 && 8 <= i) && x <= 0) && y <= 0) && N <= 10) && 0 <= x + 4)) || (((((5 <= i && x <= 0) && y <= 0) && 0 <= y) && N <= 10) && 0 <= x + 5)) || (((((10 <= i && x <= 0) && y <= 0) && N <= 10) && 0 <= x + 5) && 0 <= y + 5)) || (((((6 <= i && 0 <= y + 4) && y <= 0) && x <= 2) && N <= 10) && 0 <= x)) || (((((6 <= i && 0 <= y + 4) && x <= 0) && y <= 0) && N <= 10) && 0 <= x + 2)) || (((((6 <= i && y <= 4) && x <= 2) && 0 <= y) && N <= 10) && 0 <= x)) || (((((y <= 6 && 8 <= i) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((x <= 4 && 8 <= i) && y <= 4) && 0 <= y) && N <= 10) && 0 <= x)) || (((((x <= 8 && 0 <= y) && 9 <= i) && N <= 10) && 0 <= x) && y <= 1)) || (((((0 <= x + 6 && x <= 0) && y <= 0) && 9 <= i) && N <= 10) && 0 <= y + 3)) || (((((y <= 3 && 0 <= y) && 9 <= i) && N <= 10) && x <= 6) && 0 <= x)) || ((y <= 0 && ((((6 <= i && x <= 1) && N <= 10) && 0 <= x) || (((6 <= i && x <= 0) && 0 <= x + 1) && N <= 10))) && 0 <= y + 5)) || (((((x <= 0 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 2) && 0 <= x + 5)) || (((((10 <= i && x <= 0) && y <= 3) && 0 <= y) && 0 <= x + 7) && N <= 10)) || (((((x <= 3 && 4 <= i) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x)) || (((((x <= 4 && y <= 3) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x)) || (((((0 <= x + 6 && x <= 0) && 0 <= y) && N <= 10) && 7 <= i) && y <= 1)) || (((((6 <= i && x <= 5) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x)) || (((((0 <= x + 8 && 8 <= i) && x <= 0) && y <= 0) && 0 <= y) && N <= 10)) || (((((5 <= i && x <= 0) && y <= 3) && 0 <= y) && N <= 10) && 0 <= x + 2)) || (((((10 <= i && x <= 0) && y <= 0) && 0 <= x + 7) && N <= 10) && 0 <= y + 3)) || (((((5 <= i && x <= 0) && y <= 0) && 0 <= y + 1) && N <= 10) && 0 <= x + 4)) || (((((6 <= i && y <= 2) && x <= 0) && 0 <= y) && N <= 10) && 0 <= x + 4)) || (((((x <= 0 && y <= 3) && 0 <= y) && N <= 10) && 7 <= i) && 0 <= x + 4)) || (((((x <= 4 && y <= 0) && N <= 10) && 7 <= i) && 0 <= y + 3) && 0 <= x)) || (((((x <= 0 && y <= 0) && 3 <= i) && N <= 10) && 0 <= y + 3) && 0 <= x)) || ((((((y <= 0 && x <= 2) && N <= 10) && 7 <= i) && 0 <= x) || ((((x <= 0 && y <= 0) && N <= 10) && 7 <= i) && 0 <= x + 2)) && 0 <= y + 5)) || (((((0 <= x + 6 && x <= 0) && y <= 0) && 0 <= y + 1) && N <= 10) && 7 <= i)) || (((((0 <= x + 3 && x <= 0) && y <= 0) && 0 <= y) && 3 <= i) && N <= 10)) || (((((0 <= x + 8 && x <= 0) && y <= 0) && 0 <= y + 1) && 9 <= i) && N <= 10)) || (((((10 <= i && x <= 7) && y <= 0) && N <= 10) && 0 <= y + 3) && 0 <= x)) || (((((y <= 0 && 9 <= i) && N <= 10) && 0 <= y + 3) && x <= 6) && 0 <= x)) || (((((x <= 3 && 8 <= i) && y <= 5) && 0 <= y) && N <= 10) && 0 <= x)) || (((((10 <= i && 0 <= y + 4) && y <= 0) && N <= 10) && x <= 6) && 0 <= x)) || (((((6 <= i && x <= 4) && y <= 0) && N <= 10) && 0 <= y + 2) && 0 <= x) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-21 20:11:14,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f2f1062-ac40-4a88-bb4d-97eb3b0a01f8/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...