./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc --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 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:49:14,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:49:14,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:49:14,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:49:14,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:49:14,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:49:14,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:49:14,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:49:14,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:49:14,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:49:14,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:49:14,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:49:14,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:49:14,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:49:14,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:49:14,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:49:14,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:49:14,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:49:14,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:49:14,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:49:14,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:49:14,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:49:14,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:49:14,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:49:14,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:49:14,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:49:14,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:49:14,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:49:14,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:49:14,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:49:14,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:49:14,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:49:14,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:49:14,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:49:14,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:49:14,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:49:14,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:49:14,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:49:14,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:49:14,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:49:14,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:49:14,467 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-02 20:49:14,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:49:14,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:49:14,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:49:14,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:49:14,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:49:14,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:49:14,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:49:14,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:49:14,502 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:49:14,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:49:14,503 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:49:14,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:49:14,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:49:14,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:49:14,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:49:14,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:49:14,504 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:49:14,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:49:14,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:49:14,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:49:14,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:49:14,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:49:14,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:49:14,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:49:14,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:49:14,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:49:14,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:49:14,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:49:14,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:49:14,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:49:14,507 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_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2022-11-02 20:49:14,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:49:14,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:49:14,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:49:14,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:49:14,859 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:49:14,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2022-11-02 20:49:14,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/data/75079a860/a3a40ad9f04440ea805ff7dd6ee2f71b/FLAG2d9716d89 [2022-11-02 20:49:15,443 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:49:15,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2022-11-02 20:49:15,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/data/75079a860/a3a40ad9f04440ea805ff7dd6ee2f71b/FLAG2d9716d89 [2022-11-02 20:49:15,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/data/75079a860/a3a40ad9f04440ea805ff7dd6ee2f71b [2022-11-02 20:49:15,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:49:15,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:49:15,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:49:15,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:49:15,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:49:15,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:49:15" (1/1) ... [2022-11-02 20:49:15,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa18b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:15, skipping insertion in model container [2022-11-02 20:49:15,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:49:15" (1/1) ... [2022-11-02 20:49:15,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:49:15,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:49:16,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:49:16,102 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:49:16,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:49:16,131 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:49:16,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16 WrapperNode [2022-11-02 20:49:16,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:49:16,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:49:16,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:49:16,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:49:16,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,167 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2022-11-02 20:49:16,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:49:16,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:49:16,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:49:16,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:49:16,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,192 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:49:16,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:49:16,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:49:16,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:49:16,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (1/1) ... [2022-11-02 20:49:16,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:49:16,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:16,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:49:16,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:49:16,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:49:16,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:49:16,369 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:49:16,371 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:49:16,542 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:49:16,549 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:49:16,549 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:49:16,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:49:16 BoogieIcfgContainer [2022-11-02 20:49:16,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:49:16,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:49:16,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:49:16,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:49:16,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:49:15" (1/3) ... [2022-11-02 20:49:16,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6123570e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:49:16, skipping insertion in model container [2022-11-02 20:49:16,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:16" (2/3) ... [2022-11-02 20:49:16,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6123570e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:49:16, skipping insertion in model container [2022-11-02 20:49:16,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:49:16" (3/3) ... [2022-11-02 20:49:16,563 INFO L112 eAbstractionObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2022-11-02 20:49:16,582 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:49:16,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-02 20:49:16,656 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:49:16,667 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6584c858, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:49:16,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-02 20:49:16,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:16,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:49:16,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:16,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:49:16,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:16,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:16,700 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2022-11-02 20:49:16,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:16,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734405341] [2022-11-02 20:49:16,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:16,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:16,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:16,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:16,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734405341] [2022-11-02 20:49:16,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734405341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:16,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:16,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:49:16,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564182358] [2022-11-02 20:49:16,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:16,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:49:16,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:16,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:49:16,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:49:16,979 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:17,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:17,103 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2022-11-02 20:49:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:49:17,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-02 20:49:17,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:17,114 INFO L225 Difference]: With dead ends: 61 [2022-11-02 20:49:17,114 INFO L226 Difference]: Without dead ends: 31 [2022-11-02 20:49:17,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:49:17,121 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:17,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 26 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:49:17,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-02 20:49:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2022-11-02 20:49:17,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-11-02 20:49:17,156 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 5 [2022-11-02 20:49:17,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:17,157 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-11-02 20:49:17,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:17,157 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-02 20:49:17,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:49:17,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:17,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:49:17,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:49:17,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:17,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:17,159 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2022-11-02 20:49:17,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:17,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380986643] [2022-11-02 20:49:17,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:17,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:17,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:17,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380986643] [2022-11-02 20:49:17,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380986643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:17,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:17,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:49:17,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512082193] [2022-11-02 20:49:17,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:17,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:49:17,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:17,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:49:17,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:49:17,207 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:17,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:17,246 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-11-02 20:49:17,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:49:17,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-02 20:49:17,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:17,248 INFO L225 Difference]: With dead ends: 31 [2022-11-02 20:49:17,248 INFO L226 Difference]: Without dead ends: 30 [2022-11-02 20:49:17,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:49:17,250 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:17,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:49:17,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-02 20:49:17,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-02 20:49:17,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 29 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) [2022-11-02 20:49:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-11-02 20:49:17,260 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 6 [2022-11-02 20:49:17,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:17,260 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-11-02 20:49:17,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-11-02 20:49:17,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 20:49:17,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:17,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:17,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:49:17,262 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:17,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:17,262 INFO L85 PathProgramCache]: Analyzing trace with hash 124122716, now seen corresponding path program 1 times [2022-11-02 20:49:17,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:17,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863585620] [2022-11-02 20:49:17,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:17,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:17,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:17,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:17,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863585620] [2022-11-02 20:49:17,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863585620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:17,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:17,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:49:17,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835202939] [2022-11-02 20:49:17,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:17,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:49:17,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:17,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:49:17,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:17,363 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-02 20:49:17,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:17,428 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2022-11-02 20:49:17,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:49:17,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2022-11-02 20:49:17,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:17,431 INFO L225 Difference]: With dead ends: 49 [2022-11-02 20:49:17,431 INFO L226 Difference]: Without dead ends: 48 [2022-11-02 20:49:17,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:17,433 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 24 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:17,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 19 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:49:17,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-02 20:49:17,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2022-11-02 20:49:17,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 37 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) [2022-11-02 20:49:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2022-11-02 20:49:17,441 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 8 [2022-11-02 20:49:17,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:17,441 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2022-11-02 20:49:17,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-02 20:49:17,442 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2022-11-02 20:49:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 20:49:17,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:17,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:17,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:49:17,443 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:17,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:17,443 INFO L85 PathProgramCache]: Analyzing trace with hash 124122767, now seen corresponding path program 1 times [2022-11-02 20:49:17,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:17,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275672460] [2022-11-02 20:49:17,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:17,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:17,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:17,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275672460] [2022-11-02 20:49:17,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275672460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:17,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:17,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:49:17,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598757499] [2022-11-02 20:49:17,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:17,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:49:17,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:17,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:49:17,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:17,497 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-02 20:49:17,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:17,578 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2022-11-02 20:49:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:49:17,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2022-11-02 20:49:17,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:17,579 INFO L225 Difference]: With dead ends: 64 [2022-11-02 20:49:17,580 INFO L226 Difference]: Without dead ends: 62 [2022-11-02 20:49:17,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:17,582 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 22 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:17,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 29 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:49:17,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-02 20:49:17,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 43. [2022-11-02 20:49:17,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 42 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) [2022-11-02 20:49:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2022-11-02 20:49:17,592 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 8 [2022-11-02 20:49:17,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:17,592 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2022-11-02 20:49:17,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-02 20:49:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2022-11-02 20:49:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:49:17,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:17,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:17,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:49:17,594 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:17,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:17,595 INFO L85 PathProgramCache]: Analyzing trace with hash -447163028, now seen corresponding path program 1 times [2022-11-02 20:49:17,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:17,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601698170] [2022-11-02 20:49:17,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:17,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:17,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:17,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601698170] [2022-11-02 20:49:17,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601698170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:17,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:17,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:49:17,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153912615] [2022-11-02 20:49:17,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:17,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:49:17,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:17,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:49:17,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:49:17,688 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2022-11-02 20:49:17,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:17,821 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2022-11-02 20:49:17,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:49:17,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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 [2022-11-02 20:49:17,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:17,822 INFO L225 Difference]: With dead ends: 60 [2022-11-02 20:49:17,822 INFO L226 Difference]: Without dead ends: 59 [2022-11-02 20:49:17,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:49:17,824 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:17,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 28 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:49:17,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-02 20:49:17,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52. [2022-11-02 20:49:17,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 51 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) [2022-11-02 20:49:17,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions. [2022-11-02 20:49:17,842 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 9 [2022-11-02 20:49:17,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:17,843 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 72 transitions. [2022-11-02 20:49:17,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2022-11-02 20:49:17,843 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2022-11-02 20:49:17,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 20:49:17,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:17,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:17,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:49:17,845 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:17,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:17,846 INFO L85 PathProgramCache]: Analyzing trace with hash -447161458, now seen corresponding path program 1 times [2022-11-02 20:49:17,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:17,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443315082] [2022-11-02 20:49:17,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:17,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:17,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:17,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:17,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443315082] [2022-11-02 20:49:17,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443315082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:17,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:17,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:49:17,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115493619] [2022-11-02 20:49:17,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:17,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:49:17,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:17,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:49:17,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:17,916 INFO L87 Difference]: Start difference. First operand 52 states and 72 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-11-02 20:49:17,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:17,988 INFO L93 Difference]: Finished difference Result 97 states and 136 transitions. [2022-11-02 20:49:17,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:49:17,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2022-11-02 20:49:17,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:17,990 INFO L225 Difference]: With dead ends: 97 [2022-11-02 20:49:17,990 INFO L226 Difference]: Without dead ends: 95 [2022-11-02 20:49:17,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:17,992 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:17,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 27 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:49:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-11-02 20:49:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2022-11-02 20:49:18,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.5696202531645569) internal successors, (124), 86 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:18,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2022-11-02 20:49:18,023 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 9 [2022-11-02 20:49:18,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:18,024 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2022-11-02 20:49:18,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-11-02 20:49:18,024 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2022-11-02 20:49:18,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-02 20:49:18,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:18,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:18,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:49:18,025 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:18,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:18,025 INFO L85 PathProgramCache]: Analyzing trace with hash -977103247, now seen corresponding path program 1 times [2022-11-02 20:49:18,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:18,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152326767] [2022-11-02 20:49:18,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:18,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:18,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:18,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152326767] [2022-11-02 20:49:18,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152326767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:18,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:18,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:49:18,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145290134] [2022-11-02 20:49:18,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:18,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:49:18,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:18,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:49:18,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:49:18,083 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-11-02 20:49:18,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:18,129 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2022-11-02 20:49:18,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:49:18,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 [2022-11-02 20:49:18,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:18,132 INFO L225 Difference]: With dead ends: 87 [2022-11-02 20:49:18,132 INFO L226 Difference]: Without dead ends: 86 [2022-11-02 20:49:18,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:49:18,134 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:18,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:49:18,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-02 20:49:18,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-02 20:49:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.4936708860759493) internal successors, (118), 85 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:18,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2022-11-02 20:49:18,153 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 10 [2022-11-02 20:49:18,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:18,153 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2022-11-02 20:49:18,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-11-02 20:49:18,153 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2022-11-02 20:49:18,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:49:18,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:18,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:18,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:49:18,154 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:18,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:18,155 INFO L85 PathProgramCache]: Analyzing trace with hash -225429520, now seen corresponding path program 1 times [2022-11-02 20:49:18,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:18,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070033226] [2022-11-02 20:49:18,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:18,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:18,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:18,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:18,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070033226] [2022-11-02 20:49:18,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070033226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:49:18,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:49:18,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:49:18,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099332188] [2022-11-02 20:49:18,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:49:18,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:49:18,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:18,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:49:18,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:49:18,214 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:18,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:18,258 INFO L93 Difference]: Finished difference Result 86 states and 118 transitions. [2022-11-02 20:49:18,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:49:18,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 [2022-11-02 20:49:18,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:18,260 INFO L225 Difference]: With dead ends: 86 [2022-11-02 20:49:18,260 INFO L226 Difference]: Without dead ends: 85 [2022-11-02 20:49:18,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:49:18,261 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:18,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 19 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:49:18,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-02 20:49:18,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-11-02 20:49:18,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.4177215189873418) internal successors, (112), 84 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 112 transitions. [2022-11-02 20:49:18,274 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 112 transitions. Word has length 11 [2022-11-02 20:49:18,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:18,274 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 112 transitions. [2022-11-02 20:49:18,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:18,275 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 112 transitions. [2022-11-02 20:49:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:49:18,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:18,276 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:18,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:49:18,276 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:18,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:18,277 INFO L85 PathProgramCache]: Analyzing trace with hash -458138511, now seen corresponding path program 1 times [2022-11-02 20:49:18,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:18,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411475367] [2022-11-02 20:49:18,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:18,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:18,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:18,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411475367] [2022-11-02 20:49:18,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411475367] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:18,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523629964] [2022-11-02 20:49:18,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:18,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:18,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:18,358 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:18,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:49:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:18,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:49:18,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:18,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:18,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:18,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523629964] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:18,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:18,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-11-02 20:49:18,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285128487] [2022-11-02 20:49:18,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:18,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 20:49:18,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:18,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 20:49:18,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:49:18,721 INFO L87 Difference]: Start difference. First operand 85 states and 112 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:19,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:19,113 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2022-11-02 20:49:19,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:49:19,114 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 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 [2022-11-02 20:49:19,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:19,118 INFO L225 Difference]: With dead ends: 215 [2022-11-02 20:49:19,119 INFO L226 Difference]: Without dead ends: 214 [2022-11-02 20:49:19,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=389, Unknown=0, NotChecked=0, Total=600 [2022-11-02 20:49:19,123 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 162 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:19,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 33 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:49:19,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-02 20:49:19,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 144. [2022-11-02 20:49:19,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.3840579710144927) internal successors, (191), 143 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:19,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 191 transitions. [2022-11-02 20:49:19,169 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 191 transitions. Word has length 14 [2022-11-02 20:49:19,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:19,169 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 191 transitions. [2022-11-02 20:49:19,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:19,169 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 191 transitions. [2022-11-02 20:49:19,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:49:19,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:19,170 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-02 20:49:19,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:19,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:19,395 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:19,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:19,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1317391881, now seen corresponding path program 1 times [2022-11-02 20:49:19,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:19,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485353465] [2022-11-02 20:49:19,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:19,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:19,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:19,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485353465] [2022-11-02 20:49:19,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485353465] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:19,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911575009] [2022-11-02 20:49:19,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:19,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:19,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:19,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:19,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:49:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:19,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:49:19,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:19,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:19,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911575009] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:19,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:19,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-11-02 20:49:19,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141508734] [2022-11-02 20:49:19,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:19,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 20:49:19,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:19,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 20:49:19,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:49:19,694 INFO L87 Difference]: Start difference. First operand 144 states and 191 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 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) [2022-11-02 20:49:20,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:20,281 INFO L93 Difference]: Finished difference Result 261 states and 361 transitions. [2022-11-02 20:49:20,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-02 20:49:20,281 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 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 15 [2022-11-02 20:49:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:20,283 INFO L225 Difference]: With dead ends: 261 [2022-11-02 20:49:20,283 INFO L226 Difference]: Without dead ends: 258 [2022-11-02 20:49:20,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=354, Invalid=768, Unknown=0, NotChecked=0, Total=1122 [2022-11-02 20:49:20,285 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 208 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:20,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 31 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:49:20,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-02 20:49:20,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 167. [2022-11-02 20:49:20,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 163 states have (on average 1.2883435582822085) internal successors, (210), 166 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:20,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 210 transitions. [2022-11-02 20:49:20,312 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 210 transitions. Word has length 15 [2022-11-02 20:49:20,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:20,313 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 210 transitions. [2022-11-02 20:49:20,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 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) [2022-11-02 20:49:20,313 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 210 transitions. [2022-11-02 20:49:20,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-02 20:49:20,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:20,314 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:20,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:20,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 20:49:20,535 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:20,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:20,535 INFO L85 PathProgramCache]: Analyzing trace with hash -23572369, now seen corresponding path program 1 times [2022-11-02 20:49:20,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:20,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982363329] [2022-11-02 20:49:20,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:20,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:20,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:20,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982363329] [2022-11-02 20:49:20,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982363329] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:20,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182352025] [2022-11-02 20:49:20,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:20,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:20,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:20,594 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:20,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:49:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:20,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:49:20,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:20,663 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:20,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:20,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:20,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182352025] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:20,712 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:20,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-02 20:49:20,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465918613] [2022-11-02 20:49:20,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:20,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:49:20,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:20,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:49:20,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:49:20,713 INFO L87 Difference]: Start difference. First operand 167 states and 210 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 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) [2022-11-02 20:49:20,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:20,834 INFO L93 Difference]: Finished difference Result 377 states and 498 transitions. [2022-11-02 20:49:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:49:20,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 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) Word has length 18 [2022-11-02 20:49:20,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:20,837 INFO L225 Difference]: With dead ends: 377 [2022-11-02 20:49:20,837 INFO L226 Difference]: Without dead ends: 375 [2022-11-02 20:49:20,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:49:20,839 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 97 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:20,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 42 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:49:20,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-11-02 20:49:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 274. [2022-11-02 20:49:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 270 states have (on average 1.2592592592592593) internal successors, (340), 273 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 340 transitions. [2022-11-02 20:49:20,878 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 340 transitions. Word has length 18 [2022-11-02 20:49:20,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:20,878 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 340 transitions. [2022-11-02 20:49:20,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 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) [2022-11-02 20:49:20,879 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 340 transitions. [2022-11-02 20:49:20,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-02 20:49:20,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:20,885 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:20,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-02 20:49:21,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-02 20:49:21,103 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:21,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:21,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1589103225, now seen corresponding path program 1 times [2022-11-02 20:49:21,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:21,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450322679] [2022-11-02 20:49:21,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:21,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:21,207 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:49:21,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:21,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450322679] [2022-11-02 20:49:21,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450322679] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:21,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551331734] [2022-11-02 20:49:21,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:21,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:21,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:21,209 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:21,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:49:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:21,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:49:21,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:49:21,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 20:49:21,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551331734] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:21,527 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:21,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2022-11-02 20:49:21,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530899196] [2022-11-02 20:49:21,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:21,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-02 20:49:21,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:21,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:49:21,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-11-02 20:49:21,529 INFO L87 Difference]: Start difference. First operand 274 states and 340 transitions. Second operand has 19 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 19 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:22,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:22,284 INFO L93 Difference]: Finished difference Result 511 states and 647 transitions. [2022-11-02 20:49:22,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-02 20:49:22,285 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 19 states have internal predecessors, (68), 0 states have call successors, (0), 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 [2022-11-02 20:49:22,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:22,287 INFO L225 Difference]: With dead ends: 511 [2022-11-02 20:49:22,287 INFO L226 Difference]: Without dead ends: 508 [2022-11-02 20:49:22,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=554, Invalid=1252, Unknown=0, NotChecked=0, Total=1806 [2022-11-02 20:49:22,289 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 120 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:22,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 10 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:49:22,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-11-02 20:49:22,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 305. [2022-11-02 20:49:22,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 301 states have (on average 1.239202657807309) internal successors, (373), 304 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 373 transitions. [2022-11-02 20:49:22,326 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 373 transitions. Word has length 24 [2022-11-02 20:49:22,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:22,326 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 373 transitions. [2022-11-02 20:49:22,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 19 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:22,326 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 373 transitions. [2022-11-02 20:49:22,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-02 20:49:22,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:22,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:22,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:22,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-02 20:49:22,549 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:22,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:22,549 INFO L85 PathProgramCache]: Analyzing trace with hash -809405228, now seen corresponding path program 2 times [2022-11-02 20:49:22,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:22,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438176936] [2022-11-02 20:49:22,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:22,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:22,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:22,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438176936] [2022-11-02 20:49:22,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438176936] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:22,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997678616] [2022-11-02 20:49:22,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:49:22,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:22,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:22,710 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:22,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:49:22,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:49:22,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:49:22,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:49:22,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:22,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:23,095 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:23,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997678616] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:23,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:23,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2022-11-02 20:49:23,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113714743] [2022-11-02 20:49:23,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:23,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-02 20:49:23,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:23,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-02 20:49:23,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2022-11-02 20:49:23,100 INFO L87 Difference]: Start difference. First operand 305 states and 373 transitions. Second operand has 22 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 22 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:24,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:24,762 INFO L93 Difference]: Finished difference Result 1478 states and 1783 transitions. [2022-11-02 20:49:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-11-02 20:49:24,763 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 22 states have internal predecessors, (83), 0 states have call successors, (0), 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 29 [2022-11-02 20:49:24,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:24,769 INFO L225 Difference]: With dead ends: 1478 [2022-11-02 20:49:24,769 INFO L226 Difference]: Without dead ends: 1477 [2022-11-02 20:49:24,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2575 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1779, Invalid=4701, Unknown=0, NotChecked=0, Total=6480 [2022-11-02 20:49:24,773 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 485 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:24,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 34 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:49:24,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-11-02 20:49:24,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 705. [2022-11-02 20:49:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 701 states have (on average 1.24679029957204) internal successors, (874), 704 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 874 transitions. [2022-11-02 20:49:24,898 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 874 transitions. Word has length 29 [2022-11-02 20:49:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:24,899 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 874 transitions. [2022-11-02 20:49:24,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.9523809523809526) internal successors, (83), 22 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:24,899 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 874 transitions. [2022-11-02 20:49:24,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 20:49:24,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:24,901 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-02 20:49:24,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:25,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:25,122 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:25,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:25,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2094331952, now seen corresponding path program 2 times [2022-11-02 20:49:25,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:25,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307538472] [2022-11-02 20:49:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:25,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:25,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:25,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307538472] [2022-11-02 20:49:25,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307538472] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:25,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650859022] [2022-11-02 20:49:25,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:49:25,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:25,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:25,327 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:25,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:49:25,366 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:49:25,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:49:25,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:49:25,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:25,664 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:25,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:25,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650859022] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:25,894 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:25,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2022-11-02 20:49:25,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965925049] [2022-11-02 20:49:25,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:25,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-02 20:49:25,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:25,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-02 20:49:25,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2022-11-02 20:49:25,897 INFO L87 Difference]: Start difference. First operand 705 states and 874 transitions. Second operand has 32 states, 31 states have (on average 2.967741935483871) internal successors, (92), 32 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:27,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:27,892 INFO L93 Difference]: Finished difference Result 1372 states and 1646 transitions. [2022-11-02 20:49:27,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-02 20:49:27,893 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.967741935483871) internal successors, (92), 32 states have internal predecessors, (92), 0 states have call successors, (0), 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 32 [2022-11-02 20:49:27,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:27,898 INFO L225 Difference]: With dead ends: 1372 [2022-11-02 20:49:27,898 INFO L226 Difference]: Without dead ends: 1371 [2022-11-02 20:49:27,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1418, Invalid=3004, Unknown=0, NotChecked=0, Total=4422 [2022-11-02 20:49:27,901 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 593 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:27,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 110 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:49:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2022-11-02 20:49:28,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 897. [2022-11-02 20:49:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 893 states have (on average 1.232922732362822) internal successors, (1101), 896 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1101 transitions. [2022-11-02 20:49:28,017 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1101 transitions. Word has length 32 [2022-11-02 20:49:28,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:28,017 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 1101 transitions. [2022-11-02 20:49:28,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.967741935483871) internal successors, (92), 32 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:28,018 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1101 transitions. [2022-11-02 20:49:28,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 20:49:28,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:28,019 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1] [2022-11-02 20:49:28,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:28,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:28,247 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:28,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:28,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1671510570, now seen corresponding path program 1 times [2022-11-02 20:49:28,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:28,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812083449] [2022-11-02 20:49:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:28,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 38 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-02 20:49:28,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:28,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812083449] [2022-11-02 20:49:28,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812083449] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:28,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438946566] [2022-11-02 20:49:28,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:28,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:28,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:28,310 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:28,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:49:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:28,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:49:28,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:28,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:28,599 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:28,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438946566] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:28,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:28,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 16 [2022-11-02 20:49:28,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236355618] [2022-11-02 20:49:28,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:28,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-02 20:49:28,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:28,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-02 20:49:28,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:49:28,601 INFO L87 Difference]: Start difference. First operand 897 states and 1101 transitions. Second operand has 17 states, 16 states have (on average 5.4375) internal successors, (87), 17 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:29,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:29,662 INFO L93 Difference]: Finished difference Result 3167 states and 3972 transitions. [2022-11-02 20:49:29,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-02 20:49:29,663 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.4375) internal successors, (87), 17 states have internal predecessors, (87), 0 states have call successors, (0), 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 [2022-11-02 20:49:29,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:29,672 INFO L225 Difference]: With dead ends: 3167 [2022-11-02 20:49:29,672 INFO L226 Difference]: Without dead ends: 2954 [2022-11-02 20:49:29,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=870, Invalid=1992, Unknown=0, NotChecked=0, Total=2862 [2022-11-02 20:49:29,676 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 254 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:29,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 32 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:49:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2022-11-02 20:49:29,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 447. [2022-11-02 20:49:29,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 444 states have (on average 1.2072072072072073) internal successors, (536), 446 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:29,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 536 transitions. [2022-11-02 20:49:29,768 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 536 transitions. Word has length 36 [2022-11-02 20:49:29,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:29,769 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 536 transitions. [2022-11-02 20:49:29,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.4375) internal successors, (87), 17 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:29,769 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 536 transitions. [2022-11-02 20:49:29,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-02 20:49:29,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:29,770 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:49:29,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:29,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-02 20:49:29,990 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:29,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:29,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2031190993, now seen corresponding path program 2 times [2022-11-02 20:49:29,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:29,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818907420] [2022-11-02 20:49:29,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:29,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:30,100 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:30,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:30,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818907420] [2022-11-02 20:49:30,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818907420] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:30,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201038559] [2022-11-02 20:49:30,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:49:30,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:30,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:30,102 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:30,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-02 20:49:30,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:49:30,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:49:30,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 20:49:30,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:30,200 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:30,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:30,323 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:30,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201038559] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:30,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:30,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-02 20:49:30,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958639979] [2022-11-02 20:49:30,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:30,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 20:49:30,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:30,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 20:49:30,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:49:30,326 INFO L87 Difference]: Start difference. First operand 447 states and 536 transitions. Second operand has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:30,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:30,752 INFO L93 Difference]: Finished difference Result 1663 states and 2112 transitions. [2022-11-02 20:49:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:49:30,753 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 states have internal predecessors, (74), 0 states have call successors, (0), 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 38 [2022-11-02 20:49:30,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:30,758 INFO L225 Difference]: With dead ends: 1663 [2022-11-02 20:49:30,759 INFO L226 Difference]: Without dead ends: 1661 [2022-11-02 20:49:30,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:49:30,760 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 199 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:30,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 85 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:49:30,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2022-11-02 20:49:30,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1184. [2022-11-02 20:49:30,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1181 states have (on average 1.1837425910245554) internal successors, (1398), 1183 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:30,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1398 transitions. [2022-11-02 20:49:30,991 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1398 transitions. Word has length 38 [2022-11-02 20:49:30,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:30,992 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1398 transitions. [2022-11-02 20:49:30,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:30,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1398 transitions. [2022-11-02 20:49:30,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 20:49:30,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:30,994 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-02 20:49:31,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:49:31,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-02 20:49:31,210 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:31,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:31,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1441176329, now seen corresponding path program 3 times [2022-11-02 20:49:31,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:31,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778276196] [2022-11-02 20:49:31,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:31,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:31,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:31,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778276196] [2022-11-02 20:49:31,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778276196] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:31,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672968653] [2022-11-02 20:49:31,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:49:31,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:31,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:31,503 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:31,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-02 20:49:31,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-02 20:49:31,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:49:31,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 20:49:31,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:31,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:32,173 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:32,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672968653] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:32,173 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:32,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 36 [2022-11-02 20:49:32,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194034728] [2022-11-02 20:49:32,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:32,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-02 20:49:32,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:32,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-02 20:49:32,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2022-11-02 20:49:32,176 INFO L87 Difference]: Start difference. First operand 1184 states and 1398 transitions. Second operand has 37 states, 36 states have (on average 3.638888888888889) internal successors, (131), 37 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:40,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:40,300 INFO L93 Difference]: Finished difference Result 10093 states and 11911 transitions. [2022-11-02 20:49:40,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-11-02 20:49:40,300 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.638888888888889) internal successors, (131), 37 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-11-02 20:49:40,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:49:40,327 INFO L225 Difference]: With dead ends: 10093 [2022-11-02 20:49:40,328 INFO L226 Difference]: Without dead ends: 10092 [2022-11-02 20:49:40,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29038 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=13431, Invalid=47331, Unknown=0, NotChecked=0, Total=60762 [2022-11-02 20:49:40,342 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1514 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:49:40,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 42 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:49:40,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10092 states. [2022-11-02 20:49:41,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10092 to 3897. [2022-11-02 20:49:41,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3897 states, 3894 states have (on average 1.194915254237288) internal successors, (4653), 3896 states have internal predecessors, (4653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:41,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 4653 transitions. [2022-11-02 20:49:41,280 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 4653 transitions. Word has length 45 [2022-11-02 20:49:41,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:49:41,280 INFO L495 AbstractCegarLoop]: Abstraction has 3897 states and 4653 transitions. [2022-11-02 20:49:41,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.638888888888889) internal successors, (131), 37 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:49:41,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 4653 transitions. [2022-11-02 20:49:41,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-02 20:49:41,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:49:41,282 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-11-02 20:49:41,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-02 20:49:41,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-02 20:49:41,510 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:49:41,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:41,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1452116925, now seen corresponding path program 4 times [2022-11-02 20:49:41,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:41,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815082032] [2022-11-02 20:49:41,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:41,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:41,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:41,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815082032] [2022-11-02 20:49:41,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815082032] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:41,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858513392] [2022-11-02 20:49:41,917 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:49:41,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:41,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:41,919 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:41,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-02 20:49:41,973 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:49:41,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:49:41,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 20:49:41,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:42,732 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:42,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:43,293 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:43,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858513392] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:43,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:43,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 52 [2022-11-02 20:49:43,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481829582] [2022-11-02 20:49:43,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:43,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-02 20:49:43,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:43,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-02 20:49:43,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=549, Invalid=2207, Unknown=0, NotChecked=0, Total=2756 [2022-11-02 20:49:43,297 INFO L87 Difference]: Start difference. First operand 3897 states and 4653 transitions. Second operand has 53 states, 52 states have (on average 3.326923076923077) internal successors, (173), 53 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:07,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:07,237 INFO L93 Difference]: Finished difference Result 7269 states and 8539 transitions. [2022-11-02 20:50:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 421 states. [2022-11-02 20:50:07,238 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 3.326923076923077) internal successors, (173), 53 states have internal predecessors, (173), 0 states have call successors, (0), 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 59 [2022-11-02 20:50:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:07,258 INFO L225 Difference]: With dead ends: 7269 [2022-11-02 20:50:07,258 INFO L226 Difference]: Without dead ends: 7268 [2022-11-02 20:50:07,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 454 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109040 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=48941, Invalid=158539, Unknown=0, NotChecked=0, Total=207480 [2022-11-02 20:50:07,274 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2695 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 2855 mSolverCounterSat, 1484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2695 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 4339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1484 IncrementalHoareTripleChecker+Valid, 2855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:07,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2695 Valid, 224 Invalid, 4339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1484 Valid, 2855 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-02 20:50:07,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7268 states. [2022-11-02 20:50:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7268 to 4830. [2022-11-02 20:50:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4830 states, 4827 states have (on average 1.1914232442510877) internal successors, (5751), 4829 states have internal predecessors, (5751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:08,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4830 states to 4830 states and 5751 transitions. [2022-11-02 20:50:08,734 INFO L78 Accepts]: Start accepts. Automaton has 4830 states and 5751 transitions. Word has length 59 [2022-11-02 20:50:08,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:08,735 INFO L495 AbstractCegarLoop]: Abstraction has 4830 states and 5751 transitions. [2022-11-02 20:50:08,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 3.326923076923077) internal successors, (173), 53 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:08,735 INFO L276 IsEmpty]: Start isEmpty. Operand 4830 states and 5751 transitions. [2022-11-02 20:50:08,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-02 20:50:08,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:08,738 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-11-02 20:50:08,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-02 20:50:08,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-02 20:50:08,955 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:50:08,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:08,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1432367722, now seen corresponding path program 5 times [2022-11-02 20:50:08,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:08,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444944518] [2022-11-02 20:50:08,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:08,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:09,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:09,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444944518] [2022-11-02 20:50:09,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444944518] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:50:09,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602575171] [2022-11-02 20:50:09,313 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 20:50:09,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:09,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:09,315 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:09,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-02 20:50:09,356 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-11-02 20:50:09,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:50:09,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 20:50:09,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:09,558 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-02 20:50:09,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:09,790 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 64 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-02 20:50:09,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602575171] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:50:09,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:50:09,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 11] total 38 [2022-11-02 20:50:09,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613599884] [2022-11-02 20:50:09,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:50:09,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-02 20:50:09,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:09,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-02 20:50:09,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1222, Unknown=0, NotChecked=0, Total=1406 [2022-11-02 20:50:09,793 INFO L87 Difference]: Start difference. First operand 4830 states and 5751 transitions. Second operand has 38 states, 38 states have (on average 3.026315789473684) internal successors, (115), 38 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:18,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:18,589 INFO L93 Difference]: Finished difference Result 12685 states and 15088 transitions. [2022-11-02 20:50:18,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 207 states. [2022-11-02 20:50:18,589 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.026315789473684) internal successors, (115), 38 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-02 20:50:18,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:18,591 INFO L225 Difference]: With dead ends: 12685 [2022-11-02 20:50:18,591 INFO L226 Difference]: Without dead ends: 536 [2022-11-02 20:50:18,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22873 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=8632, Invalid=47774, Unknown=0, NotChecked=0, Total=56406 [2022-11-02 20:50:18,607 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 973 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:18,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 23 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:50:18,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-11-02 20:50:18,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 198. [2022-11-02 20:50:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 195 states have (on average 1.1076923076923078) internal successors, (216), 197 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:18,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 216 transitions. [2022-11-02 20:50:18,695 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 216 transitions. Word has length 61 [2022-11-02 20:50:18,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:18,695 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 216 transitions. [2022-11-02 20:50:18,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.026315789473684) internal successors, (115), 38 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:18,696 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 216 transitions. [2022-11-02 20:50:18,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-02 20:50:18,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:18,697 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-11-02 20:50:18,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:18,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:18,922 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:50:18,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1916189314, now seen corresponding path program 6 times [2022-11-02 20:50:18,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:18,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62256731] [2022-11-02 20:50:18,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:18,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:19,280 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:19,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:19,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62256731] [2022-11-02 20:50:19,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62256731] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:50:19,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254060141] [2022-11-02 20:50:19,281 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-02 20:50:19,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:19,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:19,282 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:19,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-02 20:50:19,330 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-11-02 20:50:19,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:50:19,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 20:50:19,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:19,797 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:19,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:20,230 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:20,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254060141] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:50:20,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:50:20,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 15, 15] total 50 [2022-11-02 20:50:20,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090079188] [2022-11-02 20:50:20,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:50:20,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-11-02 20:50:20,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:20,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-11-02 20:50:20,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=553, Invalid=1997, Unknown=0, NotChecked=0, Total=2550 [2022-11-02 20:50:20,234 INFO L87 Difference]: Start difference. First operand 198 states and 216 transitions. Second operand has 51 states, 50 states have (on average 3.58) internal successors, (179), 51 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:24,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:24,287 INFO L93 Difference]: Finished difference Result 465 states and 491 transitions. [2022-11-02 20:50:24,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-11-02 20:50:24,287 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 3.58) internal successors, (179), 51 states have internal predecessors, (179), 0 states have call successors, (0), 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 [2022-11-02 20:50:24,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:24,289 INFO L225 Difference]: With dead ends: 465 [2022-11-02 20:50:24,289 INFO L226 Difference]: Without dead ends: 464 [2022-11-02 20:50:24,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8914 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=5926, Invalid=15830, Unknown=0, NotChecked=0, Total=21756 [2022-11-02 20:50:24,292 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1510 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 720 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 720 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:24,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 65 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [720 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 20:50:24,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-11-02 20:50:24,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 207. [2022-11-02 20:50:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 204 states have (on average 1.1323529411764706) internal successors, (231), 206 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:24,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 231 transitions. [2022-11-02 20:50:24,400 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 231 transitions. Word has length 61 [2022-11-02 20:50:24,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:24,400 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 231 transitions. [2022-11-02 20:50:24,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 3.58) internal successors, (179), 51 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:24,401 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 231 transitions. [2022-11-02 20:50:24,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-02 20:50:24,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:24,402 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-11-02 20:50:24,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:24,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:24,622 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:50:24,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:24,623 INFO L85 PathProgramCache]: Analyzing trace with hash -565885901, now seen corresponding path program 7 times [2022-11-02 20:50:24,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:24,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129961166] [2022-11-02 20:50:24,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:24,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:25,182 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:25,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:25,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129961166] [2022-11-02 20:50:25,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129961166] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:50:25,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760376682] [2022-11-02 20:50:25,183 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-02 20:50:25,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:25,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:25,184 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:25,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-02 20:50:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:25,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 20:50:25,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:25,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:26,581 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:26,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760376682] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:50:26,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:50:26,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 19, 19] total 64 [2022-11-02 20:50:26,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797486703] [2022-11-02 20:50:26,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:50:26,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-11-02 20:50:26,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:26,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-11-02 20:50:26,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=3289, Unknown=0, NotChecked=0, Total=4160 [2022-11-02 20:50:26,584 INFO L87 Difference]: Start difference. First operand 207 states and 231 transitions. Second operand has 65 states, 64 states have (on average 3.546875) internal successors, (227), 65 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:34,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:34,288 INFO L93 Difference]: Finished difference Result 677 states and 719 transitions. [2022-11-02 20:50:34,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-11-02 20:50:34,289 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 3.546875) internal successors, (227), 65 states have internal predecessors, (227), 0 states have call successors, (0), 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 [2022-11-02 20:50:34,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:34,291 INFO L225 Difference]: With dead ends: 677 [2022-11-02 20:50:34,291 INFO L226 Difference]: Without dead ends: 676 [2022-11-02 20:50:34,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19403 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=12110, Invalid=33046, Unknown=0, NotChecked=0, Total=45156 [2022-11-02 20:50:34,295 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2477 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 1263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1263 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:34,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2477 Valid, 75 Invalid, 2101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1263 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:50:34,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-11-02 20:50:34,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 239. [2022-11-02 20:50:34,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 236 states have (on average 1.1610169491525424) internal successors, (274), 238 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:34,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 274 transitions. [2022-11-02 20:50:34,437 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 274 transitions. Word has length 77 [2022-11-02 20:50:34,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:34,437 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 274 transitions. [2022-11-02 20:50:34,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 3.546875) internal successors, (227), 65 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:34,437 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 274 transitions. [2022-11-02 20:50:34,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-02 20:50:34,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:34,438 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:34,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:34,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:34,639 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:50:34,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:34,639 INFO L85 PathProgramCache]: Analyzing trace with hash 99136431, now seen corresponding path program 3 times [2022-11-02 20:50:34,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:34,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104716185] [2022-11-02 20:50:34,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:34,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:34,902 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:34,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:34,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104716185] [2022-11-02 20:50:34,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104716185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:50:34,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851343514] [2022-11-02 20:50:34,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:50:34,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:34,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:34,907 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:34,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-02 20:50:34,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-02 20:50:34,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:50:34,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 20:50:34,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:35,089 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:35,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:35,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851343514] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:50:35,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:50:35,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-11-02 20:50:35,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186210570] [2022-11-02 20:50:35,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:50:35,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-02 20:50:35,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:35,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-02 20:50:35,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-02 20:50:35,504 INFO L87 Difference]: Start difference. First operand 239 states and 274 transitions. Second operand has 32 states, 31 states have (on average 4.967741935483871) internal successors, (154), 32 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:36,803 INFO L93 Difference]: Finished difference Result 984 states and 1084 transitions. [2022-11-02 20:50:36,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-02 20:50:36,807 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.967741935483871) internal successors, (154), 32 states have internal predecessors, (154), 0 states have call successors, (0), 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 78 [2022-11-02 20:50:36,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:36,809 INFO L225 Difference]: With dead ends: 984 [2022-11-02 20:50:36,809 INFO L226 Difference]: Without dead ends: 982 [2022-11-02 20:50:36,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-02 20:50:36,811 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 557 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:36,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 165 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 20:50:36,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-11-02 20:50:36,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 266. [2022-11-02 20:50:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 263 states have (on average 1.1406844106463878) internal successors, (300), 265 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:36,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 300 transitions. [2022-11-02 20:50:36,990 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 300 transitions. Word has length 78 [2022-11-02 20:50:36,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:36,990 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 300 transitions. [2022-11-02 20:50:36,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.967741935483871) internal successors, (154), 32 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:36,990 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 300 transitions. [2022-11-02 20:50:36,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-02 20:50:36,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:36,991 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 1, 1, 1, 1] [2022-11-02 20:50:37,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:37,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:37,192 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:50:37,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:37,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1130894914, now seen corresponding path program 3 times [2022-11-02 20:50:37,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:37,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662606311] [2022-11-02 20:50:37,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:37,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:37,917 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:37,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:37,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662606311] [2022-11-02 20:50:37,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662606311] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:50:37,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917603930] [2022-11-02 20:50:37,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:50:37,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:37,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:37,920 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:37,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-02 20:50:37,982 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-02 20:50:37,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:50:37,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-02 20:50:37,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:39,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 616 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:40,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917603930] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:50:40,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:50:40,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 91 [2022-11-02 20:50:40,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977700413] [2022-11-02 20:50:40,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:50:40,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-11-02 20:50:40,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:40,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-11-02 20:50:40,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1637, Invalid=6735, Unknown=0, NotChecked=0, Total=8372 [2022-11-02 20:50:40,707 INFO L87 Difference]: Start difference. First operand 266 states and 300 transitions. Second operand has 92 states, 91 states have (on average 2.989010989010989) internal successors, (272), 92 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:50,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:50,012 INFO L93 Difference]: Finished difference Result 587 states and 636 transitions. [2022-11-02 20:50:50,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-11-02 20:50:50,013 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 2.989010989010989) internal successors, (272), 92 states have internal predecessors, (272), 0 states have call successors, (0), 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 92 [2022-11-02 20:50:50,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:50,015 INFO L225 Difference]: With dead ends: 587 [2022-11-02 20:50:50,015 INFO L226 Difference]: Without dead ends: 586 [2022-11-02 20:50:50,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9762 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=8096, Invalid=20296, Unknown=0, NotChecked=0, Total=28392 [2022-11-02 20:50:50,017 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1679 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 3671 mSolverCounterSat, 810 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 4481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 810 IncrementalHoareTripleChecker+Valid, 3671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:50,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 220 Invalid, 4481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [810 Valid, 3671 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-02 20:50:50,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-11-02 20:50:50,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 362. [2022-11-02 20:50:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 359 states have (on average 1.1030640668523677) internal successors, (396), 361 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 396 transitions. [2022-11-02 20:50:50,298 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 396 transitions. Word has length 92 [2022-11-02 20:50:50,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:50,298 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 396 transitions. [2022-11-02 20:50:50,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 2.989010989010989) internal successors, (272), 92 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:50,299 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 396 transitions. [2022-11-02 20:50:50,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-02 20:50:50,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:50,299 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2022-11-02 20:50:50,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:50,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-02 20:50:50,502 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:50:50,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:50,503 INFO L85 PathProgramCache]: Analyzing trace with hash 582382769, now seen corresponding path program 8 times [2022-11-02 20:50:50,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:50,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117456993] [2022-11-02 20:50:50,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:50,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:51,162 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:51,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:51,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117456993] [2022-11-02 20:50:51,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117456993] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:50:51,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559370344] [2022-11-02 20:50:51,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:50:51,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:51,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:51,164 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:51,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-02 20:50:51,218 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 20:50:51,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:50:51,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-02 20:50:51,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:52,585 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:52,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:53,887 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:53,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559370344] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:50:53,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:50:53,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2022-11-02 20:50:53,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942685997] [2022-11-02 20:50:53,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:50:53,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-11-02 20:50:53,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:53,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-11-02 20:50:53,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1279, Invalid=7651, Unknown=0, NotChecked=0, Total=8930 [2022-11-02 20:50:53,891 INFO L87 Difference]: Start difference. First operand 362 states and 396 transitions. Second operand has 95 states, 94 states have (on average 2.925531914893617) internal successors, (275), 95 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:28,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:28,907 INFO L93 Difference]: Finished difference Result 1423 states and 1484 transitions. [2022-11-02 20:51:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 365 states. [2022-11-02 20:51:28,908 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.925531914893617) internal successors, (275), 95 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-11-02 20:51:28,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:28,913 INFO L225 Difference]: With dead ends: 1423 [2022-11-02 20:51:28,913 INFO L226 Difference]: Without dead ends: 1422 [2022-11-02 20:51:28,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 436 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82000 ImplicationChecksByTransitivity, 28.2s TimeCoverageRelationStatistics Valid=41384, Invalid=150022, Unknown=0, NotChecked=0, Total=191406 [2022-11-02 20:51:28,927 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3948 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 8292 mSolverCounterSat, 2235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3948 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 10527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2235 IncrementalHoareTripleChecker+Valid, 8292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:28,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3948 Valid, 58 Invalid, 10527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2235 Valid, 8292 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-02 20:51:28,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2022-11-02 20:51:29,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 405. [2022-11-02 20:51:29,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 402 states have (on average 1.092039800995025) internal successors, (439), 404 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:29,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 439 transitions. [2022-11-02 20:51:29,347 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 439 transitions. Word has length 93 [2022-11-02 20:51:29,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:29,347 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 439 transitions. [2022-11-02 20:51:29,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.925531914893617) internal successors, (275), 95 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:29,347 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 439 transitions. [2022-11-02 20:51:29,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-02 20:51:29,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:29,348 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1] [2022-11-02 20:51:29,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:29,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-02 20:51:29,574 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:51:29,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:29,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1941769595, now seen corresponding path program 9 times [2022-11-02 20:51:29,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:29,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242766282] [2022-11-02 20:51:29,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:29,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 487 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:30,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:30,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242766282] [2022-11-02 20:51:30,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242766282] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:30,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094074773] [2022-11-02 20:51:30,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:51:30,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:30,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:30,354 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:30,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-02 20:51:30,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2022-11-02 20:51:30,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:51:30,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-02 20:51:30,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:31,333 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 487 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:31,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 487 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:32,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094074773] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:32,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:32,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 24, 24] total 82 [2022-11-02 20:51:32,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428830511] [2022-11-02 20:51:32,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:32,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-11-02 20:51:32,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:32,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-11-02 20:51:32,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1399, Invalid=5407, Unknown=0, NotChecked=0, Total=6806 [2022-11-02 20:51:32,218 INFO L87 Difference]: Start difference. First operand 405 states and 439 transitions. Second operand has 83 states, 82 states have (on average 3.5365853658536586) internal successors, (290), 83 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:47,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:47,190 INFO L93 Difference]: Finished difference Result 1130 states and 1177 transitions. [2022-11-02 20:51:47,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2022-11-02 20:51:47,191 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 3.5365853658536586) internal successors, (290), 83 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-11-02 20:51:47,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:47,193 INFO L225 Difference]: With dead ends: 1130 [2022-11-02 20:51:47,193 INFO L226 Difference]: Without dead ends: 1129 [2022-11-02 20:51:47,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39149 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=23312, Invalid=65790, Unknown=0, NotChecked=0, Total=89102 [2022-11-02 20:51:47,201 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3917 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 1960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3917 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 3095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1960 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:47,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3917 Valid, 96 Invalid, 3095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1960 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-02 20:51:47,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2022-11-02 20:51:47,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 368. [2022-11-02 20:51:47,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 365 states have (on average 1.104109589041096) internal successors, (403), 367 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:47,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 403 transitions. [2022-11-02 20:51:47,601 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 403 transitions. Word has length 98 [2022-11-02 20:51:47,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:47,602 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 403 transitions. [2022-11-02 20:51:47,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 3.5365853658536586) internal successors, (290), 83 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:47,602 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 403 transitions. [2022-11-02 20:51:47,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-02 20:51:47,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:47,603 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2022-11-02 20:51:47,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:47,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-02 20:51:47,810 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-02 20:51:47,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:47,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1143416763, now seen corresponding path program 10 times [2022-11-02 20:51:47,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:47,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852512168] [2022-11-02 20:51:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:47,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:48,716 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:48,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:48,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852512168] [2022-11-02 20:51:48,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852512168] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:51:48,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735661885] [2022-11-02 20:51:48,717 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:51:48,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:48,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:48,719 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:48,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02b2ce58-a2c5-4fa6-ac75-a5dfc4b1a4f0/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-02 20:51:48,775 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:51:48,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:51:48,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-02 20:51:48,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:50,429 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:50,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:51:52,350 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:52,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735661885] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:51:52,351 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:51:52,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2022-11-02 20:51:52,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760956884] [2022-11-02 20:51:52,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:51:52,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-11-02 20:51:52,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:52,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-11-02 20:51:52,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1939, Invalid=12103, Unknown=0, NotChecked=0, Total=14042 [2022-11-02 20:51:52,354 INFO L87 Difference]: Start difference. First operand 368 states and 403 transitions. Second operand has 119 states, 118 states have (on average 2.889830508474576) internal successors, (341), 119 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)