./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg --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 06d48bd39a18f705c3286a70a8cdcced2226e3b2a16c7a38c85f5398d4bcad34 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....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:43:28,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:43:28,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:43:28,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:43:28,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:43:28,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:43:28,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:43:28,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:43:28,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:43:28,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:43:28,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:43:28,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:43:28,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:43:28,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:43:28,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:43:28,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:43:28,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:43:28,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:43:28,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:43:28,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:43:28,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:43:28,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:43:28,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:43:28,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:43:28,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:43:28,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:43:28,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:43:28,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:43:28,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:43:28,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:43:28,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:43:28,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:43:28,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:43:28,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:43:28,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:43:28,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:43:28,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:43:28,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:43:28,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:43:28,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:43:28,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:43:28,792 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-28 08:43:28,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:43:28,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:43:28,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:43:28,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:43:28,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:43:28,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:43:28,850 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:43:28,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:43:28,851 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:43:28,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:43:28,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:43:28,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:43:28,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:43:28,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:43:28,853 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 08:43:28,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:43:28,853 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:43:28,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:43:28,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:43:28,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:43:28,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:43:28,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:43:28,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:43:28,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:43:28,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:43:28,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:43:28,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:43:28,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:43:28,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:43:28,863 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_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06d48bd39a18f705c3286a70a8cdcced2226e3b2a16c7a38c85f5398d4bcad34 [2021-10-28 08:43:29,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:43:29,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:43:29,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:43:29,192 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:43:29,193 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:43:29,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2021-10-28 08:43:29,259 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/data/7a1610167/0d1f7f2714d6436eba8f3a401e9953dc/FLAGcf2b16ca9 [2021-10-28 08:43:29,773 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:43:29,774 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2021-10-28 08:43:29,787 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/data/7a1610167/0d1f7f2714d6436eba8f3a401e9953dc/FLAGcf2b16ca9 [2021-10-28 08:43:30,107 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/data/7a1610167/0d1f7f2714d6436eba8f3a401e9953dc [2021-10-28 08:43:30,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:43:30,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:43:30,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:43:30,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:43:30,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:43:30,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@111b9040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30, skipping insertion in model container [2021-10-28 08:43:30,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:43:30,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:43:30,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:43:30,364 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:43:30,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:43:30,394 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:43:30,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30 WrapperNode [2021-10-28 08:43:30,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:43:30,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:43:30,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:43:30,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:43:30,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:43:30,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:43:30,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:43:30,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:43:30,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:43:30,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:43:30,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:43:30,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:43:30,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (1/1) ... [2021-10-28 08:43:30,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:43:30,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:30,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:43:30,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:43:30,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:43:30,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:43:30,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:43:30,788 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 08:43:30,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:43:30 BoogieIcfgContainer [2021-10-28 08:43:30,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:43:30,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:43:30,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:43:30,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:43:30,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:43:30" (1/3) ... [2021-10-28 08:43:30,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c07a353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:43:30, skipping insertion in model container [2021-10-28 08:43:30,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:30" (2/3) ... [2021-10-28 08:43:30,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c07a353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:43:30, skipping insertion in model container [2021-10-28 08:43:30,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:43:30" (3/3) ... [2021-10-28 08:43:30,803 INFO L111 eAbstractionObserver]: Analyzing ICFG GopanReps-CAV2006-Fig1a.c [2021-10-28 08:43:30,817 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:43:30,817 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-28 08:43:30,866 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:43:30,873 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:43:30,873 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-28 08:43:30,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.75) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:30,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-28 08:43:30,894 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:30,894 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-28 08:43:30,895 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:30,901 INFO L85 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2021-10-28 08:43:30,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:30,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440503723] [2021-10-28 08:43:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:30,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:31,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:31,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440503723] [2021-10-28 08:43:31,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440503723] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:31,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:31,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:43:31,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919561672] [2021-10-28 08:43:31,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:43:31,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:31,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:43:31,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:43:31,089 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.75) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:31,128 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2021-10-28 08:43:31,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:43:31,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-28 08:43:31,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:31,138 INFO L225 Difference]: With dead ends: 49 [2021-10-28 08:43:31,138 INFO L226 Difference]: Without dead ends: 23 [2021-10-28 08:43:31,141 INFO L786 BasicCegarLoop]: 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 [2021-10-28 08:43:31,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-28 08:43:31,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-10-28 08:43:31,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-10-28 08:43:31,175 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 4 [2021-10-28 08:43:31,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:31,176 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-10-28 08:43:31,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,176 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-10-28 08:43:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-28 08:43:31,177 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:31,177 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-28 08:43:31,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:43:31,178 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:31,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:31,179 INFO L85 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2021-10-28 08:43:31,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:31,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216025668] [2021-10-28 08:43:31,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:31,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:31,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:31,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216025668] [2021-10-28 08:43:31,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216025668] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:31,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:31,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 08:43:31,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612353937] [2021-10-28 08:43:31,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:43:31,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:31,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:43:31,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:43:31,205 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:31,229 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-10-28 08:43:31,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:43:31,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-28 08:43:31,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:31,231 INFO L225 Difference]: With dead ends: 21 [2021-10-28 08:43:31,231 INFO L226 Difference]: Without dead ends: 20 [2021-10-28 08:43:31,232 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:43:31,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-28 08:43:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-28 08:43:31,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-10-28 08:43:31,236 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 4 [2021-10-28 08:43:31,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:31,237 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-10-28 08:43:31,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,237 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-10-28 08:43:31,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-28 08:43:31,238 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:31,238 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-28 08:43:31,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:43:31,239 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:31,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:31,240 INFO L85 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2021-10-28 08:43:31,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:31,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777814115] [2021-10-28 08:43:31,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:31,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:31,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:31,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:31,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777814115] [2021-10-28 08:43:31,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777814115] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:31,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:31,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 08:43:31,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501828112] [2021-10-28 08:43:31,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:43:31,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:31,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:43:31,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:43:31,292 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:31,312 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-10-28 08:43:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:43:31,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-28 08:43:31,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:31,314 INFO L225 Difference]: With dead ends: 25 [2021-10-28 08:43:31,314 INFO L226 Difference]: Without dead ends: 23 [2021-10-28 08:43:31,315 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:43:31,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-28 08:43:31,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2021-10-28 08:43:31,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-10-28 08:43:31,319 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 5 [2021-10-28 08:43:31,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:31,320 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-10-28 08:43:31,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,320 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-10-28 08:43:31,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 08:43:31,321 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:31,321 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:31,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:43:31,322 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:31,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:31,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1365891962, now seen corresponding path program 1 times [2021-10-28 08:43:31,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:31,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406908156] [2021-10-28 08:43:31,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:31,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:31,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:31,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:31,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406908156] [2021-10-28 08:43:31,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406908156] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:31,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:31,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 08:43:31,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258687445] [2021-10-28 08:43:31,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:43:31,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:31,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:43:31,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:43:31,359 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:31,374 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-10-28 08:43:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:43:31,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-28 08:43:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:31,376 INFO L225 Difference]: With dead ends: 18 [2021-10-28 08:43:31,376 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 08:43:31,376 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:43:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 08:43:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 08:43:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-28 08:43:31,381 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2021-10-28 08:43:31,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:31,382 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-28 08:43:31,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-28 08:43:31,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 08:43:31,383 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:31,384 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:31,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:43:31,384 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:31,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:31,386 INFO L85 PathProgramCache]: Analyzing trace with hash -767237628, now seen corresponding path program 1 times [2021-10-28 08:43:31,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:31,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876323689] [2021-10-28 08:43:31,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:31,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:31,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:31,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:31,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876323689] [2021-10-28 08:43:31,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876323689] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:31,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785658661] [2021-10-28 08:43:31,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:31,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:31,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:31,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:31,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:43:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:31,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 08:43:31,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:31,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:31,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785658661] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:31,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:31,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2] total 5 [2021-10-28 08:43:31,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23492571] [2021-10-28 08:43:31,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:43:31,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:31,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:43:31,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:43:31,667 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:31,783 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2021-10-28 08:43:31,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:43:31,783 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-28 08:43:31,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:31,784 INFO L225 Difference]: With dead ends: 35 [2021-10-28 08:43:31,785 INFO L226 Difference]: Without dead ends: 24 [2021-10-28 08:43:31,785 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:43:31,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-28 08:43:31,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-10-28 08:43:31,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-28 08:43:31,791 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 10 [2021-10-28 08:43:31,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:31,791 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-28 08:43:31,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:31,792 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-10-28 08:43:31,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 08:43:31,792 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:31,793 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1] [2021-10-28 08:43:31,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:32,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:32,014 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:32,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:32,015 INFO L85 PathProgramCache]: Analyzing trace with hash -907820675, now seen corresponding path program 2 times [2021-10-28 08:43:32,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:32,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120745189] [2021-10-28 08:43:32,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:32,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 08:43:32,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:32,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120745189] [2021-10-28 08:43:32,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120745189] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:32,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:32,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:43:32,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360109266] [2021-10-28 08:43:32,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:43:32,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:32,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:43:32,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:43:32,072 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:32,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:32,096 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-10-28 08:43:32,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:43:32,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-28 08:43:32,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:32,098 INFO L225 Difference]: With dead ends: 32 [2021-10-28 08:43:32,098 INFO L226 Difference]: Without dead ends: 30 [2021-10-28 08:43:32,099 INFO L786 BasicCegarLoop]: 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 [2021-10-28 08:43:32,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-28 08:43:32,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2021-10-28 08:43:32,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:32,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-10-28 08:43:32,106 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 16 [2021-10-28 08:43:32,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:32,106 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-10-28 08:43:32,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:32,107 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-10-28 08:43:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 08:43:32,107 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:32,108 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1] [2021-10-28 08:43:32,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:43:32,108 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:32,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash -907820867, now seen corresponding path program 1 times [2021-10-28 08:43:32,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:32,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943498286] [2021-10-28 08:43:32,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:32,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:32,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:32,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943498286] [2021-10-28 08:43:32,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943498286] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:32,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771915349] [2021-10-28 08:43:32,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:32,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:32,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:32,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:32,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 08:43:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:32,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:43:32,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:32,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771915349] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:32,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:32,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-28 08:43:32,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959963949] [2021-10-28 08:43:32,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:43:32,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:32,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:43:32,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:43:32,330 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:32,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:32,398 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2021-10-28 08:43:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:43:32,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-28 08:43:32,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:32,400 INFO L225 Difference]: With dead ends: 60 [2021-10-28 08:43:32,400 INFO L226 Difference]: Without dead ends: 59 [2021-10-28 08:43:32,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:43:32,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-28 08:43:32,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 47. [2021-10-28 08:43:32,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 46 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:32,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2021-10-28 08:43:32,410 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 16 [2021-10-28 08:43:32,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:32,410 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2021-10-28 08:43:32,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:32,411 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2021-10-28 08:43:32,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:43:32,411 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:32,411 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 08:43:32,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:32,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-28 08:43:32,626 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:32,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:32,627 INFO L85 PathProgramCache]: Analyzing trace with hash -537305888, now seen corresponding path program 1 times [2021-10-28 08:43:32,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:32,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314325667] [2021-10-28 08:43:32,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:32,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 08:43:32,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:32,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314325667] [2021-10-28 08:43:32,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314325667] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:32,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133667928] [2021-10-28 08:43:32,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:32,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:32,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:32,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:32,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 08:43:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:32,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:43:32,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:32,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133667928] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:32,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:32,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2021-10-28 08:43:32,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250221974] [2021-10-28 08:43:32,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:43:32,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:32,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:43:32,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:43:32,861 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:32,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:32,903 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2021-10-28 08:43:32,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:43:32,904 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-28 08:43:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:32,905 INFO L225 Difference]: With dead ends: 75 [2021-10-28 08:43:32,906 INFO L226 Difference]: Without dead ends: 40 [2021-10-28 08:43:32,907 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:43:32,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-28 08:43:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2021-10-28 08:43:32,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:32,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-10-28 08:43:32,914 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 18 [2021-10-28 08:43:32,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:32,915 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-10-28 08:43:32,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:32,915 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-10-28 08:43:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 08:43:32,916 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:32,916 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1] [2021-10-28 08:43:32,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:33,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:33,138 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:33,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:33,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1586405002, now seen corresponding path program 2 times [2021-10-28 08:43:33,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:33,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973173756] [2021-10-28 08:43:33,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:33,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:33,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:33,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973173756] [2021-10-28 08:43:33,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973173756] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:33,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58724591] [2021-10-28 08:43:33,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:43:33,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:33,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:33,258 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:33,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 08:43:33,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:43:33,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:33,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:43:33,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:33,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58724591] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:33,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:33,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-28 08:43:33,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126397269] [2021-10-28 08:43:33,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:43:33,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:33,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:43:33,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:43:33,443 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:33,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:33,486 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2021-10-28 08:43:33,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:43:33,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-10-28 08:43:33,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:33,488 INFO L225 Difference]: With dead ends: 42 [2021-10-28 08:43:33,488 INFO L226 Difference]: Without dead ends: 41 [2021-10-28 08:43:33,489 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:43:33,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-28 08:43:33,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-10-28 08:43:33,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:33,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-10-28 08:43:33,495 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 22 [2021-10-28 08:43:33,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:33,496 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-10-28 08:43:33,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:33,497 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-10-28 08:43:33,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 08:43:33,498 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:33,498 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1] [2021-10-28 08:43:33,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:33,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:33,708 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:33,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash -89664657, now seen corresponding path program 3 times [2021-10-28 08:43:33,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:33,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353972947] [2021-10-28 08:43:33,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:33,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:33,773 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:33,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:33,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353972947] [2021-10-28 08:43:33,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353972947] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:33,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272708819] [2021-10-28 08:43:33,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:43:33,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:33,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:33,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:33,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 08:43:33,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-28 08:43:33,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:33,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:43:33,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:33,994 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:33,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272708819] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:34,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:34,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-28 08:43:34,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929076706] [2021-10-28 08:43:34,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:43:34,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:34,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:43:34,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:43:34,006 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:34,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:34,060 INFO L93 Difference]: Finished difference Result 107 states and 120 transitions. [2021-10-28 08:43:34,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:43:34,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-28 08:43:34,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:34,063 INFO L225 Difference]: With dead ends: 107 [2021-10-28 08:43:34,063 INFO L226 Difference]: Without dead ends: 106 [2021-10-28 08:43:34,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:43:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-28 08:43:34,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2021-10-28 08:43:34,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 94 states have (on average 1.1595744680851063) internal successors, (109), 95 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2021-10-28 08:43:34,075 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 28 [2021-10-28 08:43:34,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:34,076 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2021-10-28 08:43:34,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:34,076 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2021-10-28 08:43:34,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 08:43:34,077 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:34,078 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1] [2021-10-28 08:43:34,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:34,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-28 08:43:34,306 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:34,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:34,306 INFO L85 PathProgramCache]: Analyzing trace with hash 661989032, now seen corresponding path program 4 times [2021-10-28 08:43:34,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:34,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808768320] [2021-10-28 08:43:34,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:34,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:34,382 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:34,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:34,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808768320] [2021-10-28 08:43:34,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808768320] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:34,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492227906] [2021-10-28 08:43:34,384 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:43:34,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:34,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:34,385 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:34,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 08:43:34,462 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:43:34,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:34,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:43:34,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:34,587 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:34,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492227906] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:34,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:34,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-28 08:43:34,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262708034] [2021-10-28 08:43:34,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 08:43:34,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:34,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:43:34,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:43:34,591 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:34,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:34,653 INFO L93 Difference]: Finished difference Result 183 states and 210 transitions. [2021-10-28 08:43:34,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:43:34,653 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 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 34 [2021-10-28 08:43:34,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:34,655 INFO L225 Difference]: With dead ends: 183 [2021-10-28 08:43:34,656 INFO L226 Difference]: Without dead ends: 182 [2021-10-28 08:43:34,656 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 08:43:34,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-28 08:43:34,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 111. [2021-10-28 08:43:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.165137614678899) internal successors, (127), 110 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2021-10-28 08:43:34,672 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 34 [2021-10-28 08:43:34,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:34,678 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2021-10-28 08:43:34,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:34,678 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2021-10-28 08:43:34,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-28 08:43:34,680 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:34,680 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 2, 2, 2, 1, 1] [2021-10-28 08:43:34,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-28 08:43:34,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 08:43:34,902 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:34,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:34,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1050459643, now seen corresponding path program 2 times [2021-10-28 08:43:34,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:34,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40030114] [2021-10-28 08:43:34,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:34,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:34,994 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 22 proven. 44 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 08:43:34,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:34,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40030114] [2021-10-28 08:43:34,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40030114] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:34,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138580936] [2021-10-28 08:43:34,995 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:43:34,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:34,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:34,997 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:35,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 08:43:35,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:43:35,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:35,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:43:35,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 22 proven. 44 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 08:43:35,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138580936] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:35,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:35,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-28 08:43:35,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400781260] [2021-10-28 08:43:35,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:43:35,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:35,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:43:35,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:43:35,199 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:35,235 INFO L93 Difference]: Finished difference Result 211 states and 244 transitions. [2021-10-28 08:43:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:43:35,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 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 36 [2021-10-28 08:43:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:35,238 INFO L225 Difference]: With dead ends: 211 [2021-10-28 08:43:35,239 INFO L226 Difference]: Without dead ends: 121 [2021-10-28 08:43:35,240 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:43:35,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-28 08:43:35,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2021-10-28 08:43:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 115 states have (on average 1.1565217391304348) internal successors, (133), 116 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:35,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 133 transitions. [2021-10-28 08:43:35,252 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 133 transitions. Word has length 36 [2021-10-28 08:43:35,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:35,253 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 133 transitions. [2021-10-28 08:43:35,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:35,253 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 133 transitions. [2021-10-28 08:43:35,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 08:43:35,255 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:35,255 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1] [2021-10-28 08:43:35,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:35,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:35,476 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:35,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:35,477 INFO L85 PathProgramCache]: Analyzing trace with hash 855337761, now seen corresponding path program 5 times [2021-10-28 08:43:35,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:35,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494463992] [2021-10-28 08:43:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:35,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:35,619 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:35,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:35,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494463992] [2021-10-28 08:43:35,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494463992] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:35,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997886577] [2021-10-28 08:43:35,620 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:43:35,620 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:35,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:35,622 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:35,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 08:43:35,730 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-10-28 08:43:35,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:35,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:43:35,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:35,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997886577] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:35,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:35,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-28 08:43:35,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190212555] [2021-10-28 08:43:35,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:43:35,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:35,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:43:35,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:43:35,893 INFO L87 Difference]: Start difference. First operand 117 states and 133 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:35,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:35,984 INFO L93 Difference]: Finished difference Result 221 states and 254 transitions. [2021-10-28 08:43:35,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:43:35,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-28 08:43:35,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:35,986 INFO L225 Difference]: With dead ends: 221 [2021-10-28 08:43:35,986 INFO L226 Difference]: Without dead ends: 220 [2021-10-28 08:43:35,987 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:43:35,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-28 08:43:36,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 132. [2021-10-28 08:43:36,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 130 states have (on average 1.1615384615384616) internal successors, (151), 131 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:36,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 151 transitions. [2021-10-28 08:43:36,020 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 151 transitions. Word has length 40 [2021-10-28 08:43:36,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:36,020 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 151 transitions. [2021-10-28 08:43:36,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:36,021 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 151 transitions. [2021-10-28 08:43:36,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-28 08:43:36,023 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:36,027 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 2, 2, 2, 1, 1] [2021-10-28 08:43:36,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:36,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:36,254 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:36,255 INFO L85 PathProgramCache]: Analyzing trace with hash 74075198, now seen corresponding path program 3 times [2021-10-28 08:43:36,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:36,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341052522] [2021-10-28 08:43:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:36,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 27 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 08:43:36,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:36,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341052522] [2021-10-28 08:43:36,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341052522] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:36,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029108204] [2021-10-28 08:43:36,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:43:36,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:36,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:36,353 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:36,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 08:43:36,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-28 08:43:36,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:36,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:43:36,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 48 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-28 08:43:36,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029108204] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:36,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:36,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 11 [2021-10-28 08:43:36,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218766296] [2021-10-28 08:43:36,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 08:43:36,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:36,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:43:36,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:43:36,633 INFO L87 Difference]: Start difference. First operand 132 states and 151 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:36,706 INFO L93 Difference]: Finished difference Result 169 states and 194 transitions. [2021-10-28 08:43:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:43:36,707 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-10-28 08:43:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:36,710 INFO L225 Difference]: With dead ends: 169 [2021-10-28 08:43:36,710 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 08:43:36,714 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:43:36,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 08:43:36,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2021-10-28 08:43:36,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 61 states have (on average 1.0819672131147542) internal successors, (66), 62 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:36,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2021-10-28 08:43:36,720 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 42 [2021-10-28 08:43:36,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:36,722 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2021-10-28 08:43:36,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:36,722 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2021-10-28 08:43:36,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-28 08:43:36,730 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:36,730 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1] [2021-10-28 08:43:36,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:36,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:36,954 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:36,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:36,954 INFO L85 PathProgramCache]: Analyzing trace with hash 714125530, now seen corresponding path program 6 times [2021-10-28 08:43:36,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:36,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265396173] [2021-10-28 08:43:36,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:36,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:37,039 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:37,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:37,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265396173] [2021-10-28 08:43:37,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265396173] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:37,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952891474] [2021-10-28 08:43:37,040 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:43:37,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:37,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:37,051 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:37,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 08:43:37,158 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-10-28 08:43:37,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:37,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:43:37,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:37,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952891474] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:37,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:37,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-10-28 08:43:37,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963478443] [2021-10-28 08:43:37,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:43:37,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:37,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:43:37,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:43:37,335 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:37,424 INFO L93 Difference]: Finished difference Result 216 states and 245 transitions. [2021-10-28 08:43:37,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:43:37,425 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-28 08:43:37,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:37,427 INFO L225 Difference]: With dead ends: 216 [2021-10-28 08:43:37,427 INFO L226 Difference]: Without dead ends: 215 [2021-10-28 08:43:37,430 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:43:37,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-28 08:43:37,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2021-10-28 08:43:37,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 196 states have (on average 1.153061224489796) internal successors, (226), 197 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:37,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 226 transitions. [2021-10-28 08:43:37,444 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 226 transitions. Word has length 46 [2021-10-28 08:43:37,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:37,445 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 226 transitions. [2021-10-28 08:43:37,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:37,445 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 226 transitions. [2021-10-28 08:43:37,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 08:43:37,446 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:37,446 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1] [2021-10-28 08:43:37,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:37,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:37,665 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:37,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:37,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1497430061, now seen corresponding path program 7 times [2021-10-28 08:43:37,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:37,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156019420] [2021-10-28 08:43:37,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:37,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:37,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:37,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156019420] [2021-10-28 08:43:37,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156019420] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:37,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762601045] [2021-10-28 08:43:37,775 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:43:37,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:37,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:37,776 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:37,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 08:43:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:37,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:43:37,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:38,107 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:38,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762601045] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:38,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:38,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-28 08:43:38,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317941960] [2021-10-28 08:43:38,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 08:43:38,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:38,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:43:38,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:43:38,110 INFO L87 Difference]: Start difference. First operand 198 states and 226 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:38,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:38,205 INFO L93 Difference]: Finished difference Result 378 states and 436 transitions. [2021-10-28 08:43:38,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:43:38,206 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-10-28 08:43:38,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:38,209 INFO L225 Difference]: With dead ends: 378 [2021-10-28 08:43:38,209 INFO L226 Difference]: Without dead ends: 377 [2021-10-28 08:43:38,210 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:43:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-10-28 08:43:38,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 219. [2021-10-28 08:43:38,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 217 states have (on average 1.1566820276497696) internal successors, (251), 218 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 251 transitions. [2021-10-28 08:43:38,224 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 251 transitions. Word has length 52 [2021-10-28 08:43:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:38,225 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 251 transitions. [2021-10-28 08:43:38,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 251 transitions. [2021-10-28 08:43:38,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 08:43:38,226 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:38,227 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1] [2021-10-28 08:43:38,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:38,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-28 08:43:38,446 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:38,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1807450100, now seen corresponding path program 8 times [2021-10-28 08:43:38,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:38,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414715461] [2021-10-28 08:43:38,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:38,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:38,562 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:38,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:38,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414715461] [2021-10-28 08:43:38,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414715461] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:38,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985913312] [2021-10-28 08:43:38,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:43:38,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:38,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:38,565 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:38,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 08:43:38,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:43:38,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:38,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 08:43:38,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:38,985 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:38,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985913312] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:38,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:38,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-28 08:43:38,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086648206] [2021-10-28 08:43:38,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 08:43:38,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:38,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 08:43:38,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:43:38,988 INFO L87 Difference]: Start difference. First operand 219 states and 251 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:39,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:39,097 INFO L93 Difference]: Finished difference Result 422 states and 488 transitions. [2021-10-28 08:43:39,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 08:43:39,098 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-10-28 08:43:39,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:39,101 INFO L225 Difference]: With dead ends: 422 [2021-10-28 08:43:39,101 INFO L226 Difference]: Without dead ends: 421 [2021-10-28 08:43:39,102 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:43:39,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-28 08:43:39,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 240. [2021-10-28 08:43:39,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 238 states have (on average 1.1596638655462186) internal successors, (276), 239 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:39,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 276 transitions. [2021-10-28 08:43:39,116 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 276 transitions. Word has length 58 [2021-10-28 08:43:39,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:39,116 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 276 transitions. [2021-10-28 08:43:39,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:39,117 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 276 transitions. [2021-10-28 08:43:39,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 08:43:39,118 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:39,118 INFO L513 BasicCegarLoop]: trace histogram [10, 9, 9, 7, 7, 7, 3, 3, 3, 1, 1] [2021-10-28 08:43:39,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:39,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-28 08:43:39,336 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:39,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:39,336 INFO L85 PathProgramCache]: Analyzing trace with hash -410764061, now seen corresponding path program 4 times [2021-10-28 08:43:39,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:39,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706689179] [2021-10-28 08:43:39,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:39,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:39,416 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 67 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 08:43:39,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:39,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706689179] [2021-10-28 08:43:39,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706689179] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:39,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834823249] [2021-10-28 08:43:39,417 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:43:39,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:39,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:39,426 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:39,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 08:43:39,604 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:43:39,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:39,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:43:39,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 67 proven. 140 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 08:43:39,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834823249] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:39,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:39,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-28 08:43:39,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333988558] [2021-10-28 08:43:39,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 08:43:39,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:39,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 08:43:39,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:43:39,776 INFO L87 Difference]: Start difference. First operand 240 states and 276 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:39,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:39,816 INFO L93 Difference]: Finished difference Result 451 states and 524 transitions. [2021-10-28 08:43:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 08:43:39,817 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-28 08:43:39,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:39,819 INFO L225 Difference]: With dead ends: 451 [2021-10-28 08:43:39,819 INFO L226 Difference]: Without dead ends: 250 [2021-10-28 08:43:39,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 08:43:39,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-28 08:43:39,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2021-10-28 08:43:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 244 states have (on average 1.1557377049180328) internal successors, (282), 245 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:39,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 282 transitions. [2021-10-28 08:43:39,831 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 282 transitions. Word has length 60 [2021-10-28 08:43:39,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:39,831 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 282 transitions. [2021-10-28 08:43:39,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:39,832 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 282 transitions. [2021-10-28 08:43:39,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-28 08:43:39,832 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:39,832 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1] [2021-10-28 08:43:39,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:40,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-28 08:43:40,042 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:40,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:40,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1024665989, now seen corresponding path program 9 times [2021-10-28 08:43:40,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:40,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896479484] [2021-10-28 08:43:40,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:40,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:40,166 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:40,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:40,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896479484] [2021-10-28 08:43:40,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896479484] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:40,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333026305] [2021-10-28 08:43:40,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:43:40,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:40,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:40,178 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:40,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 08:43:40,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-10-28 08:43:40,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:40,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 08:43:40,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:40,569 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:40,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333026305] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:40,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:40,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-10-28 08:43:40,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868355039] [2021-10-28 08:43:40,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 08:43:40,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:40,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 08:43:40,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:43:40,572 INFO L87 Difference]: Start difference. First operand 246 states and 282 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:40,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:40,667 INFO L93 Difference]: Finished difference Result 472 states and 546 transitions. [2021-10-28 08:43:40,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 08:43:40,668 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2021-10-28 08:43:40,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:40,671 INFO L225 Difference]: With dead ends: 472 [2021-10-28 08:43:40,671 INFO L226 Difference]: Without dead ends: 471 [2021-10-28 08:43:40,671 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 08:43:40,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2021-10-28 08:43:40,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 267. [2021-10-28 08:43:40,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 265 states have (on average 1.1584905660377358) internal successors, (307), 266 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:40,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 307 transitions. [2021-10-28 08:43:40,685 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 307 transitions. Word has length 64 [2021-10-28 08:43:40,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:40,685 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 307 transitions. [2021-10-28 08:43:40,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:40,686 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 307 transitions. [2021-10-28 08:43:40,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 08:43:40,687 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:40,687 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 8, 8, 8, 3, 3, 3, 1, 1] [2021-10-28 08:43:40,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:40,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:40,910 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:40,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:40,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1756468196, now seen corresponding path program 5 times [2021-10-28 08:43:40,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:40,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021954625] [2021-10-28 08:43:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:40,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:41,016 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 76 proven. 184 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 08:43:41,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:41,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021954625] [2021-10-28 08:43:41,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021954625] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:41,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184909125] [2021-10-28 08:43:41,017 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:43:41,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:41,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:41,027 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:41,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 08:43:41,242 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-10-28 08:43:41,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:41,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:43:41,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 76 proven. 184 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 08:43:41,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184909125] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:41,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:41,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-28 08:43:41,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443215229] [2021-10-28 08:43:41,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 08:43:41,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:41,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 08:43:41,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:43:41,449 INFO L87 Difference]: Start difference. First operand 267 states and 307 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:41,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:41,491 INFO L93 Difference]: Finished difference Result 499 states and 580 transitions. [2021-10-28 08:43:41,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:43:41,492 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 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 66 [2021-10-28 08:43:41,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:41,494 INFO L225 Difference]: With dead ends: 499 [2021-10-28 08:43:41,495 INFO L226 Difference]: Without dead ends: 277 [2021-10-28 08:43:41,495 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:43:41,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-10-28 08:43:41,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 273. [2021-10-28 08:43:41,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 271 states have (on average 1.154981549815498) internal successors, (313), 272 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 313 transitions. [2021-10-28 08:43:41,509 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 313 transitions. Word has length 66 [2021-10-28 08:43:41,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:41,509 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 313 transitions. [2021-10-28 08:43:41,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:41,510 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 313 transitions. [2021-10-28 08:43:41,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-28 08:43:41,511 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:41,511 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1] [2021-10-28 08:43:41,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:41,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:41,734 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:41,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:41,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1856957378, now seen corresponding path program 10 times [2021-10-28 08:43:41,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:41,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937857481] [2021-10-28 08:43:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:41,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:41,878 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:41,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:41,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937857481] [2021-10-28 08:43:41,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937857481] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:41,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537913954] [2021-10-28 08:43:41,879 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:43:41,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:41,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:41,880 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:41,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 08:43:42,126 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:43:42,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:42,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 08:43:42,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:42,341 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:42,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537913954] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:42,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:42,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-10-28 08:43:42,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051327028] [2021-10-28 08:43:42,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:43:42,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:42,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:43:42,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:43:42,344 INFO L87 Difference]: Start difference. First operand 273 states and 313 transitions. Second operand has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:42,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:42,487 INFO L93 Difference]: Finished difference Result 522 states and 604 transitions. [2021-10-28 08:43:42,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 08:43:42,488 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-10-28 08:43:42,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:42,492 INFO L225 Difference]: With dead ends: 522 [2021-10-28 08:43:42,492 INFO L226 Difference]: Without dead ends: 521 [2021-10-28 08:43:42,493 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:43:42,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2021-10-28 08:43:42,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 294. [2021-10-28 08:43:42,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 292 states have (on average 1.1575342465753424) internal successors, (338), 293 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 338 transitions. [2021-10-28 08:43:42,509 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 338 transitions. Word has length 70 [2021-10-28 08:43:42,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:42,510 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 338 transitions. [2021-10-28 08:43:42,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:42,510 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 338 transitions. [2021-10-28 08:43:42,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 08:43:42,511 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:42,512 INFO L513 BasicCegarLoop]: trace histogram [12, 11, 11, 9, 9, 9, 3, 3, 3, 1, 1] [2021-10-28 08:43:42,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:42,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:42,726 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:42,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:42,726 INFO L85 PathProgramCache]: Analyzing trace with hash -742617963, now seen corresponding path program 6 times [2021-10-28 08:43:42,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:42,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832652598] [2021-10-28 08:43:42,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:42,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:42,841 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 85 proven. 234 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 08:43:42,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:42,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832652598] [2021-10-28 08:43:42,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832652598] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:42,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533884988] [2021-10-28 08:43:42,842 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:43:42,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:42,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:42,844 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:42,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 08:43:43,222 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-28 08:43:43,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:43,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:43:43,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:43,495 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 126 proven. 21 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-10-28 08:43:43,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533884988] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:43,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:43,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 16 [2021-10-28 08:43:43,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646032407] [2021-10-28 08:43:43,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 08:43:43,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:43,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 08:43:43,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:43:43,497 INFO L87 Difference]: Start difference. First operand 294 states and 338 transitions. Second operand has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:43,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:43,574 INFO L93 Difference]: Finished difference Result 615 states and 724 transitions. [2021-10-28 08:43:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 08:43:43,575 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-10-28 08:43:43,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:43,577 INFO L225 Difference]: With dead ends: 615 [2021-10-28 08:43:43,578 INFO L226 Difference]: Without dead ends: 372 [2021-10-28 08:43:43,580 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:43:43,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-10-28 08:43:43,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 363. [2021-10-28 08:43:43,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 361 states have (on average 1.1523545706371192) internal successors, (416), 362 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 416 transitions. [2021-10-28 08:43:43,595 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 416 transitions. Word has length 72 [2021-10-28 08:43:43,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:43,595 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 416 transitions. [2021-10-28 08:43:43,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:43,596 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 416 transitions. [2021-10-28 08:43:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-28 08:43:43,596 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:43,597 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1] [2021-10-28 08:43:43,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:43,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:43,810 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:43,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:43,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1336389577, now seen corresponding path program 11 times [2021-10-28 08:43:43,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:43,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583174441] [2021-10-28 08:43:43,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:43,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:43,959 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:43,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:43,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583174441] [2021-10-28 08:43:43,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583174441] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:43,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913685457] [2021-10-28 08:43:43,960 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:43:43,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:43,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:43,961 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:43,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-28 08:43:44,282 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-10-28 08:43:44,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:44,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 08:43:44,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:44,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913685457] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:44,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:44,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-10-28 08:43:44,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374650692] [2021-10-28 08:43:44,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 08:43:44,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:44,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 08:43:44,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:43:44,554 INFO L87 Difference]: Start difference. First operand 363 states and 416 transitions. Second operand has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:44,675 INFO L93 Difference]: Finished difference Result 695 states and 804 transitions. [2021-10-28 08:43:44,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 08:43:44,676 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-10-28 08:43:44,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:44,680 INFO L225 Difference]: With dead ends: 695 [2021-10-28 08:43:44,681 INFO L226 Difference]: Without dead ends: 694 [2021-10-28 08:43:44,681 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:43:44,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2021-10-28 08:43:44,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 390. [2021-10-28 08:43:44,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 388 states have (on average 1.1546391752577319) internal successors, (448), 389 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:44,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 448 transitions. [2021-10-28 08:43:44,704 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 448 transitions. Word has length 76 [2021-10-28 08:43:44,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:44,705 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 448 transitions. [2021-10-28 08:43:44,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:44,705 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 448 transitions. [2021-10-28 08:43:44,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-28 08:43:44,706 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:44,706 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1] [2021-10-28 08:43:44,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:44,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-28 08:43:44,932 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:44,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:44,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1313411728, now seen corresponding path program 12 times [2021-10-28 08:43:44,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:44,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815643681] [2021-10-28 08:43:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:44,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:45,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:45,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815643681] [2021-10-28 08:43:45,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815643681] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:45,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760026381] [2021-10-28 08:43:45,126 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:43:45,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:45,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:45,127 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:45,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-28 08:43:45,525 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-10-28 08:43:45,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:45,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 08:43:45,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:45,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760026381] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:45,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:45,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-10-28 08:43:45,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190395206] [2021-10-28 08:43:45,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 08:43:45,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:45,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 08:43:45,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:43:45,865 INFO L87 Difference]: Start difference. First operand 390 states and 448 transitions. Second operand has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:46,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:46,019 INFO L93 Difference]: Finished difference Result 751 states and 870 transitions. [2021-10-28 08:43:46,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 08:43:46,019 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2021-10-28 08:43:46,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:46,025 INFO L225 Difference]: With dead ends: 751 [2021-10-28 08:43:46,025 INFO L226 Difference]: Without dead ends: 750 [2021-10-28 08:43:46,026 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 08:43:46,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-10-28 08:43:46,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 417. [2021-10-28 08:43:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 415 states have (on average 1.1566265060240963) internal successors, (480), 416 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:46,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 480 transitions. [2021-10-28 08:43:46,049 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 480 transitions. Word has length 82 [2021-10-28 08:43:46,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:46,049 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 480 transitions. [2021-10-28 08:43:46,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:46,050 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 480 transitions. [2021-10-28 08:43:46,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-10-28 08:43:46,051 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:46,051 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1] [2021-10-28 08:43:46,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:46,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:46,271 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:46,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:46,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1372652567, now seen corresponding path program 13 times [2021-10-28 08:43:46,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:46,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395589125] [2021-10-28 08:43:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:46,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:46,474 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:46,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:46,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395589125] [2021-10-28 08:43:46,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395589125] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:46,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320917915] [2021-10-28 08:43:46,475 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:43:46,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:46,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:46,482 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:46,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-28 08:43:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:46,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 08:43:46,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:47,135 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:47,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320917915] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:47,135 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:47,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-10-28 08:43:47,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901426085] [2021-10-28 08:43:47,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 08:43:47,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:47,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 08:43:47,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:43:47,138 INFO L87 Difference]: Start difference. First operand 417 states and 480 transitions. Second operand has 17 states, 16 states have (on average 5.5) internal successors, (88), 16 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:47,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:47,277 INFO L93 Difference]: Finished difference Result 807 states and 936 transitions. [2021-10-28 08:43:47,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 08:43:47,278 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.5) internal successors, (88), 16 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-10-28 08:43:47,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:47,283 INFO L225 Difference]: With dead ends: 807 [2021-10-28 08:43:47,284 INFO L226 Difference]: Without dead ends: 806 [2021-10-28 08:43:47,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-28 08:43:47,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2021-10-28 08:43:47,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 444. [2021-10-28 08:43:47,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 442 states have (on average 1.158371040723982) internal successors, (512), 443 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:47,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 512 transitions. [2021-10-28 08:43:47,308 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 512 transitions. Word has length 88 [2021-10-28 08:43:47,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:47,309 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 512 transitions. [2021-10-28 08:43:47,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.5) internal successors, (88), 16 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:47,309 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 512 transitions. [2021-10-28 08:43:47,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-28 08:43:47,311 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:47,311 INFO L513 BasicCegarLoop]: trace histogram [15, 14, 14, 11, 11, 11, 4, 4, 4, 1, 1] [2021-10-28 08:43:47,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:47,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-28 08:43:47,530 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:47,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:47,530 INFO L85 PathProgramCache]: Analyzing trace with hash 289561722, now seen corresponding path program 7 times [2021-10-28 08:43:47,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:47,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622384784] [2021-10-28 08:43:47,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:47,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:47,666 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 352 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 08:43:47,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:47,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622384784] [2021-10-28 08:43:47,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622384784] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:47,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334962644] [2021-10-28 08:43:47,667 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:43:47,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:47,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:47,668 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:47,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-28 08:43:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:48,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 08:43:48,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:48,333 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 352 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 08:43:48,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334962644] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:48,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:48,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-10-28 08:43:48,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465148483] [2021-10-28 08:43:48,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 08:43:48,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:48,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 08:43:48,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:43:48,336 INFO L87 Difference]: Start difference. First operand 444 states and 512 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:48,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:48,400 INFO L93 Difference]: Finished difference Result 835 states and 972 transitions. [2021-10-28 08:43:48,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 08:43:48,401 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-10-28 08:43:48,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:48,404 INFO L225 Difference]: With dead ends: 835 [2021-10-28 08:43:48,404 INFO L226 Difference]: Without dead ends: 454 [2021-10-28 08:43:48,405 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:43:48,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-10-28 08:43:48,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 450. [2021-10-28 08:43:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 448 states have (on average 1.15625) internal successors, (518), 449 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:48,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 518 transitions. [2021-10-28 08:43:48,425 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 518 transitions. Word has length 90 [2021-10-28 08:43:48,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:48,425 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 518 transitions. [2021-10-28 08:43:48,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:48,426 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 518 transitions. [2021-10-28 08:43:48,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-10-28 08:43:48,427 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:48,427 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1] [2021-10-28 08:43:48,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:48,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-28 08:43:48,654 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:48,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:48,654 INFO L85 PathProgramCache]: Analyzing trace with hash 146181026, now seen corresponding path program 14 times [2021-10-28 08:43:48,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:48,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917770970] [2021-10-28 08:43:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:48,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:48,887 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:48,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:48,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917770970] [2021-10-28 08:43:48,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917770970] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:48,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562965467] [2021-10-28 08:43:48,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:43:48,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:48,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:48,889 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:48,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 08:43:49,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:43:49,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:49,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 08:43:49,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:49,752 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:49,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562965467] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:49,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:49,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-10-28 08:43:49,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100412767] [2021-10-28 08:43:49,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 08:43:49,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:49,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 08:43:49,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 08:43:49,755 INFO L87 Difference]: Start difference. First operand 450 states and 518 transitions. Second operand has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 17 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:49,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:49,922 INFO L93 Difference]: Finished difference Result 869 states and 1008 transitions. [2021-10-28 08:43:49,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 08:43:49,923 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 17 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2021-10-28 08:43:49,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:49,928 INFO L225 Difference]: With dead ends: 869 [2021-10-28 08:43:49,928 INFO L226 Difference]: Without dead ends: 868 [2021-10-28 08:43:49,929 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 08:43:49,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2021-10-28 08:43:49,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 477. [2021-10-28 08:43:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 475 states have (on average 1.1578947368421053) internal successors, (550), 476 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:49,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 550 transitions. [2021-10-28 08:43:49,955 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 550 transitions. Word has length 94 [2021-10-28 08:43:49,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:49,955 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 550 transitions. [2021-10-28 08:43:49,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.529411764705882) internal successors, (94), 17 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:49,956 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 550 transitions. [2021-10-28 08:43:49,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-28 08:43:49,957 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:49,957 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 12, 12, 12, 4, 4, 4, 1, 1] [2021-10-28 08:43:50,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:50,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-28 08:43:50,182 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:50,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:50,182 INFO L85 PathProgramCache]: Analyzing trace with hash -400236045, now seen corresponding path program 8 times [2021-10-28 08:43:50,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:50,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754045318] [2021-10-28 08:43:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:50,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:50,365 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 162 proven. 420 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 08:43:50,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:50,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754045318] [2021-10-28 08:43:50,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754045318] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:50,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528722569] [2021-10-28 08:43:50,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:43:50,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:50,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:50,370 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:50,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-28 08:43:50,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:43:50,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:50,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 08:43:50,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:51,300 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 162 proven. 420 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 08:43:51,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528722569] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:51,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:51,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-10-28 08:43:51,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994884204] [2021-10-28 08:43:51,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 08:43:51,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:51,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 08:43:51,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:43:51,303 INFO L87 Difference]: Start difference. First operand 477 states and 550 transitions. Second operand has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:51,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:51,375 INFO L93 Difference]: Finished difference Result 895 states and 1042 transitions. [2021-10-28 08:43:51,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 08:43:51,375 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 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 96 [2021-10-28 08:43:51,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:51,380 INFO L225 Difference]: With dead ends: 895 [2021-10-28 08:43:51,380 INFO L226 Difference]: Without dead ends: 487 [2021-10-28 08:43:51,381 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 08:43:51,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2021-10-28 08:43:51,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 483. [2021-10-28 08:43:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 481 states have (on average 1.155925155925156) internal successors, (556), 482 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 556 transitions. [2021-10-28 08:43:51,406 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 556 transitions. Word has length 96 [2021-10-28 08:43:51,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:51,407 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 556 transitions. [2021-10-28 08:43:51,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.466666666666667) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:51,407 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 556 transitions. [2021-10-28 08:43:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-10-28 08:43:51,409 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:51,409 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1] [2021-10-28 08:43:51,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:51,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-28 08:43:51,634 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:51,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:51,634 INFO L85 PathProgramCache]: Analyzing trace with hash -143151973, now seen corresponding path program 15 times [2021-10-28 08:43:51,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:51,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799262874] [2021-10-28 08:43:51,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:51,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:51,884 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:51,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:51,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799262874] [2021-10-28 08:43:51,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799262874] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:51,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624196940] [2021-10-28 08:43:51,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:43:51,885 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:51,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:51,886 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:51,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-28 08:43:52,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-10-28 08:43:52,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:52,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 08:43:52,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:52,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624196940] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:52,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:52,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-10-28 08:43:52,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734955391] [2021-10-28 08:43:52,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 08:43:52,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:52,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 08:43:52,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 08:43:52,901 INFO L87 Difference]: Start difference. First operand 483 states and 556 transitions. Second operand has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:53,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:53,080 INFO L93 Difference]: Finished difference Result 931 states and 1080 transitions. [2021-10-28 08:43:53,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 08:43:53,081 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-10-28 08:43:53,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:53,087 INFO L225 Difference]: With dead ends: 931 [2021-10-28 08:43:53,087 INFO L226 Difference]: Without dead ends: 930 [2021-10-28 08:43:53,090 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 08:43:53,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2021-10-28 08:43:53,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 510. [2021-10-28 08:43:53,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 508 states have (on average 1.1574803149606299) internal successors, (588), 509 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:53,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 588 transitions. [2021-10-28 08:43:53,118 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 588 transitions. Word has length 100 [2021-10-28 08:43:53,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:53,118 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 588 transitions. [2021-10-28 08:43:53,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:53,119 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 588 transitions. [2021-10-28 08:43:53,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-10-28 08:43:53,120 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:53,120 INFO L513 BasicCegarLoop]: trace histogram [17, 16, 16, 13, 13, 13, 4, 4, 4, 1, 1] [2021-10-28 08:43:53,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:53,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-28 08:43:53,334 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:53,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:53,334 INFO L85 PathProgramCache]: Analyzing trace with hash 723626156, now seen corresponding path program 9 times [2021-10-28 08:43:53,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:53,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603970512] [2021-10-28 08:43:53,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:53,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 175 proven. 494 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 08:43:53,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:53,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603970512] [2021-10-28 08:43:53,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603970512] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:53,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595412182] [2021-10-28 08:43:53,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:43:53,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:53,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:53,494 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:53,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 08:43:53,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-28 08:43:53,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:53,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:43:53,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 285 proven. 59 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2021-10-28 08:43:54,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595412182] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:54,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:54,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7] total 22 [2021-10-28 08:43:54,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379973030] [2021-10-28 08:43:54,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 08:43:54,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:54,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 08:43:54,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:43:54,316 INFO L87 Difference]: Start difference. First operand 510 states and 588 transitions. Second operand has 22 states, 22 states have (on average 5.863636363636363) internal successors, (129), 22 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:54,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:54,467 INFO L93 Difference]: Finished difference Result 1125 states and 1335 transitions. [2021-10-28 08:43:54,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 08:43:54,467 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.863636363636363) internal successors, (129), 22 states have internal predecessors, (129), 0 states have call successors, (0), 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 102 [2021-10-28 08:43:54,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:54,472 INFO L225 Difference]: With dead ends: 1125 [2021-10-28 08:43:54,472 INFO L226 Difference]: Without dead ends: 690 [2021-10-28 08:43:54,474 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:43:54,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-10-28 08:43:54,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 678. [2021-10-28 08:43:54,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 676 states have (on average 1.1553254437869822) internal successors, (781), 677 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 781 transitions. [2021-10-28 08:43:54,511 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 781 transitions. Word has length 102 [2021-10-28 08:43:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:54,511 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 781 transitions. [2021-10-28 08:43:54,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.863636363636363) internal successors, (129), 22 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:54,512 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 781 transitions. [2021-10-28 08:43:54,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-10-28 08:43:54,513 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:54,513 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1] [2021-10-28 08:43:54,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:54,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:54,742 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:54,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:54,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1288728276, now seen corresponding path program 16 times [2021-10-28 08:43:54,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:54,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251287499] [2021-10-28 08:43:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:54,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:55,021 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 0 proven. 867 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:55,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:55,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251287499] [2021-10-28 08:43:55,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251287499] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:55,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964359171] [2021-10-28 08:43:55,022 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:43:55,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:55,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:55,023 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:55,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-28 08:43:55,546 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:43:55,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:55,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 08:43:55,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 0 proven. 867 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:55,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964359171] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:55,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:55,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-10-28 08:43:55,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730080393] [2021-10-28 08:43:55,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 08:43:55,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:55,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 08:43:55,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-28 08:43:55,951 INFO L87 Difference]: Start difference. First operand 678 states and 781 transitions. Second operand has 20 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:56,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:56,130 INFO L93 Difference]: Finished difference Result 1317 states and 1528 transitions. [2021-10-28 08:43:56,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 08:43:56,131 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-10-28 08:43:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:56,139 INFO L225 Difference]: With dead ends: 1317 [2021-10-28 08:43:56,139 INFO L226 Difference]: Without dead ends: 1316 [2021-10-28 08:43:56,140 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-28 08:43:56,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2021-10-28 08:43:56,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 717. [2021-10-28 08:43:56,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 715 states have (on average 1.1566433566433567) internal successors, (827), 716 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:56,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 827 transitions. [2021-10-28 08:43:56,179 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 827 transitions. Word has length 106 [2021-10-28 08:43:56,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:56,180 INFO L470 AbstractCegarLoop]: Abstraction has 717 states and 827 transitions. [2021-10-28 08:43:56,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.578947368421052) internal successors, (106), 19 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:56,180 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 827 transitions. [2021-10-28 08:43:56,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-10-28 08:43:56,182 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:56,182 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1] [2021-10-28 08:43:56,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:56,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:56,396 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:56,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:56,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2142051763, now seen corresponding path program 17 times [2021-10-28 08:43:56,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:56,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565796043] [2021-10-28 08:43:56,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:56,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:56,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:56,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565796043] [2021-10-28 08:43:56,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565796043] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:56,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239396901] [2021-10-28 08:43:56,654 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:43:56,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:56,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:56,655 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:56,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-28 08:43:57,185 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-10-28 08:43:57,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:57,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 08:43:57,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:57,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239396901] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:57,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:57,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-10-28 08:43:57,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821770600] [2021-10-28 08:43:57,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 08:43:57,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:57,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 08:43:57,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-28 08:43:57,587 INFO L87 Difference]: Start difference. First operand 717 states and 827 transitions. Second operand has 21 states, 20 states have (on average 5.6) internal successors, (112), 20 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) [2021-10-28 08:43:57,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:57,788 INFO L93 Difference]: Finished difference Result 1397 states and 1622 transitions. [2021-10-28 08:43:57,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 08:43:57,788 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.6) internal successors, (112), 20 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) Word has length 112 [2021-10-28 08:43:57,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:57,796 INFO L225 Difference]: With dead ends: 1397 [2021-10-28 08:43:57,797 INFO L226 Difference]: Without dead ends: 1396 [2021-10-28 08:43:57,806 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-28 08:43:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2021-10-28 08:43:57,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 756. [2021-10-28 08:43:57,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 754 states have (on average 1.1578249336870026) internal successors, (873), 755 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 873 transitions. [2021-10-28 08:43:57,844 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 873 transitions. Word has length 112 [2021-10-28 08:43:57,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:57,844 INFO L470 AbstractCegarLoop]: Abstraction has 756 states and 873 transitions. [2021-10-28 08:43:57,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.6) internal successors, (112), 20 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) [2021-10-28 08:43:57,845 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 873 transitions. [2021-10-28 08:43:57,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-28 08:43:57,846 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:57,846 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1] [2021-10-28 08:43:57,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:58,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-10-28 08:43:58,074 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:58,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:58,074 INFO L85 PathProgramCache]: Analyzing trace with hash -138078458, now seen corresponding path program 18 times [2021-10-28 08:43:58,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:58,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437343752] [2021-10-28 08:43:58,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:58,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:58,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:58,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437343752] [2021-10-28 08:43:58,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437343752] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:58,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279240185] [2021-10-28 08:43:58,381 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:43:58,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:58,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:58,386 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:58,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-28 08:43:58,947 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2021-10-28 08:43:58,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:43:58,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 08:43:58,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:43:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:59,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279240185] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:43:59,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:43:59,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-10-28 08:43:59,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074741474] [2021-10-28 08:43:59,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 08:43:59,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:59,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 08:43:59,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:43:59,283 INFO L87 Difference]: Start difference. First operand 756 states and 873 transitions. Second operand has 22 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 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) [2021-10-28 08:43:59,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:59,499 INFO L93 Difference]: Finished difference Result 1477 states and 1716 transitions. [2021-10-28 08:43:59,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 08:43:59,500 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 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) Word has length 118 [2021-10-28 08:43:59,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:59,512 INFO L225 Difference]: With dead ends: 1477 [2021-10-28 08:43:59,512 INFO L226 Difference]: Without dead ends: 1476 [2021-10-28 08:43:59,515 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:43:59,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-10-28 08:43:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 795. [2021-10-28 08:43:59,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 793 states have (on average 1.158890290037831) internal successors, (919), 794 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:43:59,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 919 transitions. [2021-10-28 08:43:59,554 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 919 transitions. Word has length 118 [2021-10-28 08:43:59,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:59,555 INFO L470 AbstractCegarLoop]: Abstraction has 795 states and 919 transitions. [2021-10-28 08:43:59,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.619047619047619) internal successors, (118), 21 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) [2021-10-28 08:43:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 919 transitions. [2021-10-28 08:43:59,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-10-28 08:43:59,557 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:59,558 INFO L513 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1] [2021-10-28 08:43:59,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:59,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-10-28 08:43:59,786 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:43:59,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:59,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1876878081, now seen corresponding path program 19 times [2021-10-28 08:43:59,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:59,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698764483] [2021-10-28 08:43:59,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:59,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 1200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:00,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:00,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698764483] [2021-10-28 08:44:00,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698764483] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:00,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836308908] [2021-10-28 08:44:00,121 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:44:00,121 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:00,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:00,122 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:00,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-28 08:44:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:00,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 08:44:00,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:01,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 1200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:01,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836308908] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:01,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:01,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-10-28 08:44:01,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479340506] [2021-10-28 08:44:01,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 08:44:01,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:01,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 08:44:01,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 08:44:01,174 INFO L87 Difference]: Start difference. First operand 795 states and 919 transitions. Second operand has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 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) [2021-10-28 08:44:01,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:01,373 INFO L93 Difference]: Finished difference Result 1557 states and 1810 transitions. [2021-10-28 08:44:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 08:44:01,378 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 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) Word has length 124 [2021-10-28 08:44:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:01,386 INFO L225 Difference]: With dead ends: 1557 [2021-10-28 08:44:01,387 INFO L226 Difference]: Without dead ends: 1556 [2021-10-28 08:44:01,387 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 08:44:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2021-10-28 08:44:01,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 834. [2021-10-28 08:44:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 832 states have (on average 1.1598557692307692) internal successors, (965), 833 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 965 transitions. [2021-10-28 08:44:01,420 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 965 transitions. Word has length 124 [2021-10-28 08:44:01,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:01,421 INFO L470 AbstractCegarLoop]: Abstraction has 834 states and 965 transitions. [2021-10-28 08:44:01,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 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) [2021-10-28 08:44:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 965 transitions. [2021-10-28 08:44:01,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-10-28 08:44:01,423 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:01,424 INFO L513 BasicCegarLoop]: trace histogram [21, 20, 20, 15, 15, 15, 6, 6, 6, 1, 1] [2021-10-28 08:44:01,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:01,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-10-28 08:44:01,646 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:01,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:01,646 INFO L85 PathProgramCache]: Analyzing trace with hash -637299836, now seen corresponding path program 10 times [2021-10-28 08:44:01,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:01,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562057237] [2021-10-28 08:44:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:01,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:01,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 325 proven. 660 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 08:44:01,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:01,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562057237] [2021-10-28 08:44:01,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562057237] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:01,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554391424] [2021-10-28 08:44:01,854 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:44:01,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:01,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:01,856 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:01,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-28 08:44:02,517 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:44:02,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:02,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 08:44:02,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:02,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 325 proven. 660 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 08:44:02,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554391424] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:02,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:02,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-10-28 08:44:02,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097723511] [2021-10-28 08:44:02,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 08:44:02,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:02,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 08:44:02,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 08:44:02,934 INFO L87 Difference]: Start difference. First operand 834 states and 965 transitions. Second operand has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 17 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:03,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:03,018 INFO L93 Difference]: Finished difference Result 1591 states and 1854 transitions. [2021-10-28 08:44:03,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 08:44:03,018 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 17 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-10-28 08:44:03,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:03,023 INFO L225 Difference]: With dead ends: 1591 [2021-10-28 08:44:03,024 INFO L226 Difference]: Without dead ends: 844 [2021-10-28 08:44:03,025 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 08:44:03,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-10-28 08:44:03,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 840. [2021-10-28 08:44:03,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 838 states have (on average 1.1587112171837708) internal successors, (971), 839 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:03,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 971 transitions. [2021-10-28 08:44:03,077 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 971 transitions. Word has length 126 [2021-10-28 08:44:03,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:03,078 INFO L470 AbstractCegarLoop]: Abstraction has 840 states and 971 transitions. [2021-10-28 08:44:03,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 17 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:03,078 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 971 transitions. [2021-10-28 08:44:03,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-10-28 08:44:03,080 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:03,081 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1] [2021-10-28 08:44:03,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:03,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-28 08:44:03,306 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:03,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:03,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1721041976, now seen corresponding path program 20 times [2021-10-28 08:44:03,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:03,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183734224] [2021-10-28 08:44:03,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:03,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:03,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 0 proven. 1323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:03,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:03,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183734224] [2021-10-28 08:44:03,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183734224] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:03,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195766437] [2021-10-28 08:44:03,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:44:03,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:03,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:03,638 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:03,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-28 08:44:04,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:44:04,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:04,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 08:44:04,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 0 proven. 1323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:05,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195766437] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:05,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:05,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-10-28 08:44:05,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46538925] [2021-10-28 08:44:05,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 08:44:05,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:05,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 08:44:05,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-28 08:44:05,102 INFO L87 Difference]: Start difference. First operand 840 states and 971 transitions. Second operand has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 23 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:05,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:05,333 INFO L93 Difference]: Finished difference Result 1643 states and 1910 transitions. [2021-10-28 08:44:05,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 08:44:05,334 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 23 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-10-28 08:44:05,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:05,347 INFO L225 Difference]: With dead ends: 1643 [2021-10-28 08:44:05,347 INFO L226 Difference]: Without dead ends: 1642 [2021-10-28 08:44:05,348 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-28 08:44:05,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2021-10-28 08:44:05,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 879. [2021-10-28 08:44:05,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 877 states have (on average 1.1596351197263397) internal successors, (1017), 878 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:05,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1017 transitions. [2021-10-28 08:44:05,422 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1017 transitions. Word has length 130 [2021-10-28 08:44:05,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:05,422 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 1017 transitions. [2021-10-28 08:44:05,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 23 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1017 transitions. [2021-10-28 08:44:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-28 08:44:05,424 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:05,424 INFO L513 BasicCegarLoop]: trace histogram [22, 21, 21, 16, 16, 16, 6, 6, 6, 1, 1] [2021-10-28 08:44:05,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:05,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-10-28 08:44:05,650 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:05,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash -484798339, now seen corresponding path program 11 times [2021-10-28 08:44:05,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:05,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510275275] [2021-10-28 08:44:05,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:05,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:05,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 346 proven. 752 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 08:44:05,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:05,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510275275] [2021-10-28 08:44:05,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510275275] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:05,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155658402] [2021-10-28 08:44:05,871 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:44:05,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:05,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:05,872 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:05,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-28 08:44:06,669 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-10-28 08:44:06,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:06,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 08:44:06,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:07,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1173 backedges. 346 proven. 752 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 08:44:07,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155658402] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:07,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:07,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-10-28 08:44:07,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738818555] [2021-10-28 08:44:07,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 08:44:07,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:07,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 08:44:07,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 08:44:07,054 INFO L87 Difference]: Start difference. First operand 879 states and 1017 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:07,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:07,190 INFO L93 Difference]: Finished difference Result 1675 states and 1952 transitions. [2021-10-28 08:44:07,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 08:44:07,191 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-10-28 08:44:07,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:07,197 INFO L225 Difference]: With dead ends: 1675 [2021-10-28 08:44:07,197 INFO L226 Difference]: Without dead ends: 889 [2021-10-28 08:44:07,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 08:44:07,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2021-10-28 08:44:07,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 885. [2021-10-28 08:44:07,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 883 states have (on average 1.1585503963759909) internal successors, (1023), 884 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:07,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1023 transitions. [2021-10-28 08:44:07,231 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1023 transitions. Word has length 132 [2021-10-28 08:44:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:07,232 INFO L470 AbstractCegarLoop]: Abstraction has 885 states and 1023 transitions. [2021-10-28 08:44:07,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:07,232 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1023 transitions. [2021-10-28 08:44:07,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-10-28 08:44:07,234 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:07,234 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1] [2021-10-28 08:44:07,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:07,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-28 08:44:07,462 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:07,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:07,462 INFO L85 PathProgramCache]: Analyzing trace with hash -511517519, now seen corresponding path program 21 times [2021-10-28 08:44:07,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:07,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417041392] [2021-10-28 08:44:07,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:07,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:07,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:07,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417041392] [2021-10-28 08:44:07,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417041392] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:07,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005961843] [2021-10-28 08:44:07,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:44:07,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:07,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:07,794 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:07,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-28 08:44:08,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-10-28 08:44:08,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:08,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 08:44:08,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:09,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:09,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005961843] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:09,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:09,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-10-28 08:44:09,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240162716] [2021-10-28 08:44:09,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 08:44:09,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:09,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 08:44:09,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-28 08:44:09,088 INFO L87 Difference]: Start difference. First operand 885 states and 1023 transitions. Second operand has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 24 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:09,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:09,306 INFO L93 Difference]: Finished difference Result 1729 states and 2010 transitions. [2021-10-28 08:44:09,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 08:44:09,307 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 24 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-10-28 08:44:09,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:09,318 INFO L225 Difference]: With dead ends: 1729 [2021-10-28 08:44:09,318 INFO L226 Difference]: Without dead ends: 1728 [2021-10-28 08:44:09,320 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-28 08:44:09,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2021-10-28 08:44:09,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 924. [2021-10-28 08:44:09,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 922 states have (on average 1.1594360086767896) internal successors, (1069), 923 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:09,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1069 transitions. [2021-10-28 08:44:09,409 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1069 transitions. Word has length 136 [2021-10-28 08:44:09,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:09,410 INFO L470 AbstractCegarLoop]: Abstraction has 924 states and 1069 transitions. [2021-10-28 08:44:09,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 24 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:09,411 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1069 transitions. [2021-10-28 08:44:09,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-10-28 08:44:09,413 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:09,413 INFO L513 BasicCegarLoop]: trace histogram [23, 22, 22, 17, 17, 17, 6, 6, 6, 1, 1] [2021-10-28 08:44:09,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:09,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:09,630 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:09,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:09,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1509174966, now seen corresponding path program 12 times [2021-10-28 08:44:09,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:09,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320910831] [2021-10-28 08:44:09,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:09,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:09,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 367 proven. 850 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 08:44:09,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:09,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320910831] [2021-10-28 08:44:09,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320910831] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:09,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606248956] [2021-10-28 08:44:09,904 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:44:09,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:09,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:09,906 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:09,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-28 08:44:10,837 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-10-28 08:44:10,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:10,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 08:44:10,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 509 proven. 123 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2021-10-28 08:44:11,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606248956] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:11,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:11,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9] total 28 [2021-10-28 08:44:11,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749816069] [2021-10-28 08:44:11,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-28 08:44:11,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:11,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-28 08:44:11,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 08:44:11,365 INFO L87 Difference]: Start difference. First operand 924 states and 1069 transitions. Second operand has 28 states, 28 states have (on average 5.892857142857143) internal successors, (165), 28 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:11,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:11,504 INFO L93 Difference]: Finished difference Result 1981 states and 2341 transitions. [2021-10-28 08:44:11,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-28 08:44:11,505 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.892857142857143) internal successors, (165), 28 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-10-28 08:44:11,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:11,511 INFO L225 Difference]: With dead ends: 1981 [2021-10-28 08:44:11,512 INFO L226 Difference]: Without dead ends: 1156 [2021-10-28 08:44:11,514 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 08:44:11,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2021-10-28 08:44:11,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1140. [2021-10-28 08:44:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1138 states have (on average 1.1581722319859402) internal successors, (1318), 1139 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:11,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1318 transitions. [2021-10-28 08:44:11,550 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1318 transitions. Word has length 138 [2021-10-28 08:44:11,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:11,551 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 1318 transitions. [2021-10-28 08:44:11,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.892857142857143) internal successors, (165), 28 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:11,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1318 transitions. [2021-10-28 08:44:11,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-10-28 08:44:11,553 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:11,553 INFO L513 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 1, 1] [2021-10-28 08:44:11,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:11,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-10-28 08:44:11,770 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:11,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash -109005206, now seen corresponding path program 22 times [2021-10-28 08:44:11,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:11,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487416407] [2021-10-28 08:44:11,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:11,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:12,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1587 backedges. 0 proven. 1587 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:12,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:12,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487416407] [2021-10-28 08:44:12,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487416407] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:12,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139916609] [2021-10-28 08:44:12,180 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:44:12,181 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:12,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:12,182 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:12,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-28 08:44:13,142 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:44:13,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:13,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 08:44:13,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1587 backedges. 0 proven. 1587 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:13,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139916609] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:13,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:13,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-10-28 08:44:13,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579142636] [2021-10-28 08:44:13,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 08:44:13,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:13,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 08:44:13,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 08:44:13,547 INFO L87 Difference]: Start difference. First operand 1140 states and 1318 transitions. Second operand has 26 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:13,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:13,785 INFO L93 Difference]: Finished difference Result 2235 states and 2598 transitions. [2021-10-28 08:44:13,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 08:44:13,785 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2021-10-28 08:44:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:13,795 INFO L225 Difference]: With dead ends: 2235 [2021-10-28 08:44:13,795 INFO L226 Difference]: Without dead ends: 2234 [2021-10-28 08:44:13,796 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 08:44:13,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2021-10-28 08:44:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1191. [2021-10-28 08:44:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 1189 states have (on average 1.1589571068124473) internal successors, (1378), 1190 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:13,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1378 transitions. [2021-10-28 08:44:13,865 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1378 transitions. Word has length 142 [2021-10-28 08:44:13,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:13,866 INFO L470 AbstractCegarLoop]: Abstraction has 1191 states and 1378 transitions. [2021-10-28 08:44:13,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:13,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1378 transitions. [2021-10-28 08:44:13,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-10-28 08:44:13,868 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:13,868 INFO L513 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 1, 1] [2021-10-28 08:44:13,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:14,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-28 08:44:14,087 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:14,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:14,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1034378909, now seen corresponding path program 23 times [2021-10-28 08:44:14,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:14,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333259498] [2021-10-28 08:44:14,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:14,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:14,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:14,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:14,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333259498] [2021-10-28 08:44:14,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333259498] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:14,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275471496] [2021-10-28 08:44:14,523 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:44:14,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:14,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:14,526 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:14,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-28 08:44:15,604 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2021-10-28 08:44:15,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:15,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-28 08:44:15,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:16,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275471496] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:16,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:16,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-10-28 08:44:16,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175987061] [2021-10-28 08:44:16,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-28 08:44:16,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-28 08:44:16,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 08:44:16,100 INFO L87 Difference]: Start difference. First operand 1191 states and 1378 transitions. Second operand has 27 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:16,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:16,411 INFO L93 Difference]: Finished difference Result 2339 states and 2720 transitions. [2021-10-28 08:44:16,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 08:44:16,412 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2021-10-28 08:44:16,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:16,427 INFO L225 Difference]: With dead ends: 2339 [2021-10-28 08:44:16,427 INFO L226 Difference]: Without dead ends: 2338 [2021-10-28 08:44:16,429 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 08:44:16,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2021-10-28 08:44:16,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 1242. [2021-10-28 08:44:16,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1240 states have (on average 1.1596774193548387) internal successors, (1438), 1241 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1438 transitions. [2021-10-28 08:44:16,480 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1438 transitions. Word has length 148 [2021-10-28 08:44:16,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:16,480 INFO L470 AbstractCegarLoop]: Abstraction has 1242 states and 1438 transitions. [2021-10-28 08:44:16,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:16,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1438 transitions. [2021-10-28 08:44:16,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-10-28 08:44:16,483 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:16,483 INFO L513 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 1, 1] [2021-10-28 08:44:16,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:16,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:16,710 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:16,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:16,710 INFO L85 PathProgramCache]: Analyzing trace with hash 872983964, now seen corresponding path program 24 times [2021-10-28 08:44:16,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:16,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641317840] [2021-10-28 08:44:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:16,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:17,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1875 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:17,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:17,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641317840] [2021-10-28 08:44:17,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641317840] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:17,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421626335] [2021-10-28 08:44:17,249 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:44:17,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:17,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:17,253 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:17,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-28 08:44:18,300 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2021-10-28 08:44:18,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:18,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 08:44:18,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1875 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:18,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421626335] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:18,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:18,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-10-28 08:44:18,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028905438] [2021-10-28 08:44:18,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-28 08:44:18,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:18,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-28 08:44:18,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 08:44:18,792 INFO L87 Difference]: Start difference. First operand 1242 states and 1438 transitions. Second operand has 28 states, 27 states have (on average 5.703703703703703) internal successors, (154), 27 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) [2021-10-28 08:44:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:19,062 INFO L93 Difference]: Finished difference Result 2443 states and 2842 transitions. [2021-10-28 08:44:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-28 08:44:19,062 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 5.703703703703703) internal successors, (154), 27 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 154 [2021-10-28 08:44:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:19,076 INFO L225 Difference]: With dead ends: 2443 [2021-10-28 08:44:19,076 INFO L226 Difference]: Without dead ends: 2442 [2021-10-28 08:44:19,077 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 08:44:19,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2021-10-28 08:44:19,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 1293. [2021-10-28 08:44:19,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1291 states have (on average 1.1603408210689388) internal successors, (1498), 1292 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:19,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1498 transitions. [2021-10-28 08:44:19,117 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1498 transitions. Word has length 154 [2021-10-28 08:44:19,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:19,118 INFO L470 AbstractCegarLoop]: Abstraction has 1293 states and 1498 transitions. [2021-10-28 08:44:19,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 5.703703703703703) internal successors, (154), 27 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) [2021-10-28 08:44:19,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1498 transitions. [2021-10-28 08:44:19,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-10-28 08:44:19,120 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:19,121 INFO L513 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 1, 1] [2021-10-28 08:44:19,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:19,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-10-28 08:44:19,342 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:19,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:19,342 INFO L85 PathProgramCache]: Analyzing trace with hash 868412181, now seen corresponding path program 25 times [2021-10-28 08:44:19,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:19,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486771727] [2021-10-28 08:44:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:19,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:19,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 2028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:19,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:19,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486771727] [2021-10-28 08:44:19,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486771727] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:19,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214214499] [2021-10-28 08:44:19,766 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:44:19,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:19,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:19,767 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:19,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-28 08:44:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:20,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-28 08:44:20,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 2028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:21,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214214499] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:21,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:21,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-10-28 08:44:21,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044738644] [2021-10-28 08:44:21,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-28 08:44:21,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:21,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-28 08:44:21,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-10-28 08:44:21,289 INFO L87 Difference]: Start difference. First operand 1293 states and 1498 transitions. Second operand has 29 states, 28 states have (on average 5.714285714285714) internal successors, (160), 28 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:21,513 INFO L93 Difference]: Finished difference Result 2547 states and 2964 transitions. [2021-10-28 08:44:21,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-28 08:44:21,542 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.714285714285714) internal successors, (160), 28 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-10-28 08:44:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:21,551 INFO L225 Difference]: With dead ends: 2547 [2021-10-28 08:44:21,551 INFO L226 Difference]: Without dead ends: 2546 [2021-10-28 08:44:21,553 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-10-28 08:44:21,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2021-10-28 08:44:21,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1344. [2021-10-28 08:44:21,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1342 states have (on average 1.1609538002980626) internal successors, (1558), 1343 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1558 transitions. [2021-10-28 08:44:21,679 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1558 transitions. Word has length 160 [2021-10-28 08:44:21,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:21,680 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 1558 transitions. [2021-10-28 08:44:21,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.714285714285714) internal successors, (160), 28 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:21,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1558 transitions. [2021-10-28 08:44:21,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-10-28 08:44:21,695 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:21,696 INFO L513 BasicCegarLoop]: trace histogram [27, 26, 26, 19, 19, 19, 8, 8, 8, 1, 1] [2021-10-28 08:44:21,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:21,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:21,897 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:21,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:21,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1355830898, now seen corresponding path program 13 times [2021-10-28 08:44:21,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:21,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127117577] [2021-10-28 08:44:21,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:21,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1776 backedges. 565 proven. 1064 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-10-28 08:44:22,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:22,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127117577] [2021-10-28 08:44:22,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127117577] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:22,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597949734] [2021-10-28 08:44:22,179 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:44:22,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:22,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:22,180 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:22,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-28 08:44:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:23,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 08:44:23,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1776 backedges. 565 proven. 1064 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-10-28 08:44:23,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597949734] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:23,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:23,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-10-28 08:44:23,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343551844] [2021-10-28 08:44:23,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 08:44:23,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:23,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 08:44:23,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:44:23,700 INFO L87 Difference]: Start difference. First operand 1344 states and 1558 transitions. Second operand has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 21 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) [2021-10-28 08:44:23,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:23,816 INFO L93 Difference]: Finished difference Result 2587 states and 3016 transitions. [2021-10-28 08:44:23,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 08:44:23,817 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 21 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) Word has length 162 [2021-10-28 08:44:23,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:23,824 INFO L225 Difference]: With dead ends: 2587 [2021-10-28 08:44:23,824 INFO L226 Difference]: Without dead ends: 1354 [2021-10-28 08:44:23,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 08:44:23,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2021-10-28 08:44:23,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1350. [2021-10-28 08:44:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1348 states have (on average 1.1602373887240356) internal successors, (1564), 1349 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1564 transitions. [2021-10-28 08:44:23,858 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1564 transitions. Word has length 162 [2021-10-28 08:44:23,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:23,858 INFO L470 AbstractCegarLoop]: Abstraction has 1350 states and 1564 transitions. [2021-10-28 08:44:23,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 21 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) [2021-10-28 08:44:23,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1564 transitions. [2021-10-28 08:44:23,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-10-28 08:44:23,860 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:23,861 INFO L513 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 1, 1] [2021-10-28 08:44:23,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:24,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-10-28 08:44:24,082 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:24,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:24,082 INFO L85 PathProgramCache]: Analyzing trace with hash -588420658, now seen corresponding path program 26 times [2021-10-28 08:44:24,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:24,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544936408] [2021-10-28 08:44:24,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:24,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:24,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2187 backedges. 0 proven. 2187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:24,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:24,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544936408] [2021-10-28 08:44:24,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544936408] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:24,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682571713] [2021-10-28 08:44:24,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:44:24,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:24,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:24,585 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:24,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-28 08:44:25,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:44:25,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:25,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-28 08:44:25,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:26,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2187 backedges. 0 proven. 2187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:26,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682571713] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:26,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:26,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-10-28 08:44:26,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173649864] [2021-10-28 08:44:26,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-28 08:44:26,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:26,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-28 08:44:26,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-28 08:44:26,254 INFO L87 Difference]: Start difference. First operand 1350 states and 1564 transitions. Second operand has 30 states, 29 states have (on average 5.724137931034483) internal successors, (166), 29 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:26,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:26,516 INFO L93 Difference]: Finished difference Result 2657 states and 3092 transitions. [2021-10-28 08:44:26,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-28 08:44:26,517 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 5.724137931034483) internal successors, (166), 29 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-10-28 08:44:26,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:26,524 INFO L225 Difference]: With dead ends: 2657 [2021-10-28 08:44:26,524 INFO L226 Difference]: Without dead ends: 2656 [2021-10-28 08:44:26,525 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-28 08:44:26,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2021-10-28 08:44:26,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 1401. [2021-10-28 08:44:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1399 states have (on average 1.1608291636883488) internal successors, (1624), 1400 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:26,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1624 transitions. [2021-10-28 08:44:26,571 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1624 transitions. Word has length 166 [2021-10-28 08:44:26,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:26,572 INFO L470 AbstractCegarLoop]: Abstraction has 1401 states and 1624 transitions. [2021-10-28 08:44:26,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 5.724137931034483) internal successors, (166), 29 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:26,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1624 transitions. [2021-10-28 08:44:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-10-28 08:44:26,574 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:26,574 INFO L513 BasicCegarLoop]: trace histogram [28, 27, 27, 20, 20, 20, 8, 8, 8, 1, 1] [2021-10-28 08:44:26,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:26,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:26,802 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:26,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1212850681, now seen corresponding path program 14 times [2021-10-28 08:44:26,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:26,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474776530] [2021-10-28 08:44:26,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:26,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:27,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 594 proven. 1180 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-10-28 08:44:27,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:27,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474776530] [2021-10-28 08:44:27,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474776530] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:27,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855247209] [2021-10-28 08:44:27,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:44:27,181 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:27,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:27,187 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:27,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-28 08:44:28,567 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:44:28,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:28,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 08:44:28,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 594 proven. 1180 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-10-28 08:44:28,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855247209] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:28,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:28,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-10-28 08:44:28,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682722893] [2021-10-28 08:44:28,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 08:44:28,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:28,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 08:44:28,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 08:44:28,989 INFO L87 Difference]: Start difference. First operand 1401 states and 1624 transitions. Second operand has 23 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:29,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:29,071 INFO L93 Difference]: Finished difference Result 2695 states and 3142 transitions. [2021-10-28 08:44:29,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 08:44:29,072 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2021-10-28 08:44:29,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:29,074 INFO L225 Difference]: With dead ends: 2695 [2021-10-28 08:44:29,075 INFO L226 Difference]: Without dead ends: 1411 [2021-10-28 08:44:29,077 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 08:44:29,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2021-10-28 08:44:29,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1407. [2021-10-28 08:44:29,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1405 states have (on average 1.1601423487544484) internal successors, (1630), 1406 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1630 transitions. [2021-10-28 08:44:29,115 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1630 transitions. Word has length 168 [2021-10-28 08:44:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:29,115 INFO L470 AbstractCegarLoop]: Abstraction has 1407 states and 1630 transitions. [2021-10-28 08:44:29,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.6521739130434785) internal successors, (130), 22 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:29,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1630 transitions. [2021-10-28 08:44:29,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-10-28 08:44:29,117 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:29,118 INFO L513 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 28, 28, 1, 1] [2021-10-28 08:44:29,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:29,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-10-28 08:44:29,338 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:29,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:29,338 INFO L85 PathProgramCache]: Analyzing trace with hash 170015175, now seen corresponding path program 27 times [2021-10-28 08:44:29,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:29,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693089129] [2021-10-28 08:44:29,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:29,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:29,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:29,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:29,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693089129] [2021-10-28 08:44:29,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693089129] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:29,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958268711] [2021-10-28 08:44:29,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:44:29,819 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:29,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:29,820 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:29,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-28 08:44:31,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2021-10-28 08:44:31,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:31,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 08:44:31,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:31,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958268711] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:31,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:31,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-10-28 08:44:31,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542287271] [2021-10-28 08:44:31,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-28 08:44:31,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:31,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-28 08:44:31,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-28 08:44:31,596 INFO L87 Difference]: Start difference. First operand 1407 states and 1630 transitions. Second operand has 31 states, 30 states have (on average 5.733333333333333) internal successors, (172), 30 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:31,928 INFO L93 Difference]: Finished difference Result 2767 states and 3220 transitions. [2021-10-28 08:44:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-28 08:44:31,929 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 5.733333333333333) internal successors, (172), 30 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2021-10-28 08:44:31,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:31,935 INFO L225 Difference]: With dead ends: 2767 [2021-10-28 08:44:31,936 INFO L226 Difference]: Without dead ends: 2766 [2021-10-28 08:44:31,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-28 08:44:31,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2021-10-28 08:44:31,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 1458. [2021-10-28 08:44:31,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1456 states have (on average 1.1607142857142858) internal successors, (1690), 1457 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:31,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1690 transitions. [2021-10-28 08:44:31,980 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1690 transitions. Word has length 172 [2021-10-28 08:44:31,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:31,981 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 1690 transitions. [2021-10-28 08:44:31,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 5.733333333333333) internal successors, (172), 30 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:31,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1690 transitions. [2021-10-28 08:44:31,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-10-28 08:44:31,983 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:31,984 INFO L513 BasicCegarLoop]: trace histogram [29, 28, 28, 21, 21, 21, 8, 8, 8, 1, 1] [2021-10-28 08:44:32,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:32,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:32,206 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:32,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:32,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1794511808, now seen corresponding path program 15 times [2021-10-28 08:44:32,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:32,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247573707] [2021-10-28 08:44:32,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:32,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:32,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 623 proven. 1302 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-10-28 08:44:32,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:32,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247573707] [2021-10-28 08:44:32,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247573707] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:32,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464365723] [2021-10-28 08:44:32,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:44:32,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:32,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:32,569 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:32,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-28 08:44:33,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-10-28 08:44:33,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:33,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 08:44:33,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:34,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 797 proven. 211 refuted. 0 times theorem prover too weak. 1064 trivial. 0 not checked. [2021-10-28 08:44:34,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464365723] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:34,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:34,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11] total 34 [2021-10-28 08:44:34,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732400496] [2021-10-28 08:44:34,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-28 08:44:34,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:34,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-28 08:44:34,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 08:44:34,622 INFO L87 Difference]: Start difference. First operand 1458 states and 1690 transitions. Second operand has 34 states, 34 states have (on average 5.911764705882353) internal successors, (201), 34 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:34,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:34,848 INFO L93 Difference]: Finished difference Result 3077 states and 3627 transitions. [2021-10-28 08:44:34,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-28 08:44:34,848 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.911764705882353) internal successors, (201), 34 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-10-28 08:44:34,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:34,851 INFO L225 Difference]: With dead ends: 3077 [2021-10-28 08:44:34,851 INFO L226 Difference]: Without dead ends: 1742 [2021-10-28 08:44:34,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 08:44:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2021-10-28 08:44:34,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1722. [2021-10-28 08:44:34,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1720 states have (on average 1.1598837209302326) internal successors, (1995), 1721 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:34,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 1995 transitions. [2021-10-28 08:44:34,897 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 1995 transitions. Word has length 174 [2021-10-28 08:44:34,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:34,898 INFO L470 AbstractCegarLoop]: Abstraction has 1722 states and 1995 transitions. [2021-10-28 08:44:34,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.911764705882353) internal successors, (201), 34 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:34,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 1995 transitions. [2021-10-28 08:44:34,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-10-28 08:44:34,900 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:34,900 INFO L513 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 1, 1] [2021-10-28 08:44:34,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:35,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-10-28 08:44:35,111 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:35,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:35,112 INFO L85 PathProgramCache]: Analyzing trace with hash 506424064, now seen corresponding path program 28 times [2021-10-28 08:44:35,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:35,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289902575] [2021-10-28 08:44:35,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:35,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:35,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2523 backedges. 0 proven. 2523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:35,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:35,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289902575] [2021-10-28 08:44:35,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289902575] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:35,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830367257] [2021-10-28 08:44:35,647 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:44:35,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:35,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:35,648 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:35,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-28 08:44:36,953 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:44:36,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:36,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-28 08:44:36,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:37,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2523 backedges. 0 proven. 2523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:37,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830367257] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:37,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:37,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-10-28 08:44:37,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752806871] [2021-10-28 08:44:37,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-28 08:44:37,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:37,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-28 08:44:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-10-28 08:44:37,448 INFO L87 Difference]: Start difference. First operand 1722 states and 1995 transitions. Second operand has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 31 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:37,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:37,685 INFO L93 Difference]: Finished difference Result 3393 states and 3948 transitions. [2021-10-28 08:44:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-28 08:44:37,685 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 31 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2021-10-28 08:44:37,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:37,690 INFO L225 Difference]: With dead ends: 3393 [2021-10-28 08:44:37,690 INFO L226 Difference]: Without dead ends: 3392 [2021-10-28 08:44:37,692 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-10-28 08:44:37,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3392 states. [2021-10-28 08:44:37,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3392 to 1785. [2021-10-28 08:44:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1783 states have (on average 1.1604038137969714) internal successors, (2069), 1784 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2069 transitions. [2021-10-28 08:44:37,735 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2069 transitions. Word has length 178 [2021-10-28 08:44:37,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:37,735 INFO L470 AbstractCegarLoop]: Abstraction has 1785 states and 2069 transitions. [2021-10-28 08:44:37,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 31 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:37,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2069 transitions. [2021-10-28 08:44:37,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-10-28 08:44:37,737 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:37,738 INFO L513 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 30, 1, 1] [2021-10-28 08:44:37,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2021-10-28 08:44:37,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-28 08:44:37,946 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:37,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:37,946 INFO L85 PathProgramCache]: Analyzing trace with hash 219614585, now seen corresponding path program 29 times [2021-10-28 08:44:37,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:37,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484521845] [2021-10-28 08:44:37,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:37,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:38,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:38,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484521845] [2021-10-28 08:44:38,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484521845] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:38,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275825997] [2021-10-28 08:44:38,548 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:44:38,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:38,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:38,554 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:38,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-28 08:44:40,029 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2021-10-28 08:44:40,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:40,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-28 08:44:40,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:40,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275825997] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:40,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:40,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-10-28 08:44:40,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508685984] [2021-10-28 08:44:40,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-28 08:44:40,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:40,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-28 08:44:40,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 08:44:40,547 INFO L87 Difference]: Start difference. First operand 1785 states and 2069 transitions. Second operand has 33 states, 32 states have (on average 5.75) internal successors, (184), 32 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:40,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:40,823 INFO L93 Difference]: Finished difference Result 3521 states and 4098 transitions. [2021-10-28 08:44:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-28 08:44:40,823 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.75) internal successors, (184), 32 states have internal predecessors, (184), 0 states have call successors, (0), 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 184 [2021-10-28 08:44:40,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:40,831 INFO L225 Difference]: With dead ends: 3521 [2021-10-28 08:44:40,832 INFO L226 Difference]: Without dead ends: 3520 [2021-10-28 08:44:40,834 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-10-28 08:44:40,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3520 states. [2021-10-28 08:44:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3520 to 1848. [2021-10-28 08:44:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1848 states, 1846 states have (on average 1.1608884073672807) internal successors, (2143), 1847 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:40,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2143 transitions. [2021-10-28 08:44:40,904 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2143 transitions. Word has length 184 [2021-10-28 08:44:40,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:40,905 INFO L470 AbstractCegarLoop]: Abstraction has 1848 states and 2143 transitions. [2021-10-28 08:44:40,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.75) internal successors, (184), 32 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:40,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2143 transitions. [2021-10-28 08:44:40,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-10-28 08:44:40,908 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:40,908 INFO L513 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 1, 1] [2021-10-28 08:44:40,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:41,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-10-28 08:44:41,130 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:41,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:41,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1525731022, now seen corresponding path program 30 times [2021-10-28 08:44:41,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:41,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385262570] [2021-10-28 08:44:41,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:41,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:41,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:41,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385262570] [2021-10-28 08:44:41,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385262570] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:41,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648826328] [2021-10-28 08:44:41,787 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:44:41,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:41,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:41,789 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:41,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-28 08:44:43,381 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2021-10-28 08:44:43,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:43,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-28 08:44:43,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:43,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2883 backedges. 0 proven. 2883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:43,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648826328] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:43,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:43,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-10-28 08:44:43,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527644934] [2021-10-28 08:44:43,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-28 08:44:43,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:43,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-28 08:44:43,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 08:44:43,917 INFO L87 Difference]: Start difference. First operand 1848 states and 2143 transitions. Second operand has 34 states, 33 states have (on average 5.757575757575758) internal successors, (190), 33 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:44,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:44,226 INFO L93 Difference]: Finished difference Result 3649 states and 4248 transitions. [2021-10-28 08:44:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-28 08:44:44,227 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 5.757575757575758) internal successors, (190), 33 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2021-10-28 08:44:44,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:44,235 INFO L225 Difference]: With dead ends: 3649 [2021-10-28 08:44:44,235 INFO L226 Difference]: Without dead ends: 3648 [2021-10-28 08:44:44,237 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 08:44:44,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2021-10-28 08:44:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 1911. [2021-10-28 08:44:44,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1909 states have (on average 1.1613410162388684) internal successors, (2217), 1910 states have internal predecessors, (2217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:44,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2217 transitions. [2021-10-28 08:44:44,293 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2217 transitions. Word has length 190 [2021-10-28 08:44:44,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:44,294 INFO L470 AbstractCegarLoop]: Abstraction has 1911 states and 2217 transitions. [2021-10-28 08:44:44,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.757575757575758) internal successors, (190), 33 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:44,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2217 transitions. [2021-10-28 08:44:44,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-10-28 08:44:44,297 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:44,297 INFO L513 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 1, 1] [2021-10-28 08:44:44,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:44,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2021-10-28 08:44:44,522 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:44,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:44,522 INFO L85 PathProgramCache]: Analyzing trace with hash 394389035, now seen corresponding path program 31 times [2021-10-28 08:44:44,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:44,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253398038] [2021-10-28 08:44:44,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:44,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:45,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:45,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253398038] [2021-10-28 08:44:45,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253398038] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:45,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832830044] [2021-10-28 08:44:45,224 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:44:45,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:45,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:45,229 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:45,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-28 08:44:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:46,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-28 08:44:46,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:47,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:47,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832830044] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:47,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:47,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-10-28 08:44:47,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262692793] [2021-10-28 08:44:47,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-28 08:44:47,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:47,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-28 08:44:47,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 08:44:47,534 INFO L87 Difference]: Start difference. First operand 1911 states and 2217 transitions. Second operand has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 34 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:47,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:47,863 INFO L93 Difference]: Finished difference Result 3777 states and 4398 transitions. [2021-10-28 08:44:47,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-28 08:44:47,863 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 34 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2021-10-28 08:44:47,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:47,875 INFO L225 Difference]: With dead ends: 3777 [2021-10-28 08:44:47,876 INFO L226 Difference]: Without dead ends: 3776 [2021-10-28 08:44:47,877 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 08:44:47,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2021-10-28 08:44:47,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 1974. [2021-10-28 08:44:47,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1972 states have (on average 1.161764705882353) internal successors, (2291), 1973 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:47,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2291 transitions. [2021-10-28 08:44:47,936 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2291 transitions. Word has length 196 [2021-10-28 08:44:47,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:47,938 INFO L470 AbstractCegarLoop]: Abstraction has 1974 states and 2291 transitions. [2021-10-28 08:44:47,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 34 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:47,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2291 transitions. [2021-10-28 08:44:47,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-10-28 08:44:47,941 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:47,941 INFO L513 BasicCegarLoop]: trace histogram [33, 32, 32, 23, 23, 23, 10, 10, 10, 1, 1] [2021-10-28 08:44:47,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:48,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:48,166 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:48,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:48,166 INFO L85 PathProgramCache]: Analyzing trace with hash 666443416, now seen corresponding path program 16 times [2021-10-28 08:44:48,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:48,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835360300] [2021-10-28 08:44:48,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:48,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 869 proven. 1564 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-28 08:44:48,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:48,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835360300] [2021-10-28 08:44:48,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835360300] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:48,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623264343] [2021-10-28 08:44:48,599 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:44:48,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:48,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:48,600 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:48,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-28 08:44:50,308 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:44:50,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:50,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 08:44:50,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 869 proven. 1564 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-28 08:44:50,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623264343] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:50,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:50,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-10-28 08:44:50,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844370030] [2021-10-28 08:44:50,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 08:44:50,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:50,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 08:44:50,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 08:44:50,982 INFO L87 Difference]: Start difference. First operand 1974 states and 2291 transitions. Second operand has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:51,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:51,089 INFO L93 Difference]: Finished difference Result 3823 states and 4458 transitions. [2021-10-28 08:44:51,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 08:44:51,098 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 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 198 [2021-10-28 08:44:51,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:51,102 INFO L225 Difference]: With dead ends: 3823 [2021-10-28 08:44:51,103 INFO L226 Difference]: Without dead ends: 1984 [2021-10-28 08:44:51,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 08:44:51,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2021-10-28 08:44:51,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1980. [2021-10-28 08:44:51,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1978 states have (on average 1.1612740141557127) internal successors, (2297), 1979 states have internal predecessors, (2297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:51,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2297 transitions. [2021-10-28 08:44:51,175 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2297 transitions. Word has length 198 [2021-10-28 08:44:51,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:51,176 INFO L470 AbstractCegarLoop]: Abstraction has 1980 states and 2297 transitions. [2021-10-28 08:44:51,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:51,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2297 transitions. [2021-10-28 08:44:51,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-10-28 08:44:51,180 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:51,180 INFO L513 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 33, 33, 1, 1] [2021-10-28 08:44:51,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:51,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:51,404 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:51,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:51,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1039319964, now seen corresponding path program 32 times [2021-10-28 08:44:51,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:51,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273136621] [2021-10-28 08:44:51,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:51,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:52,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3267 backedges. 0 proven. 3267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:52,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:52,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273136621] [2021-10-28 08:44:52,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273136621] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:52,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254358901] [2021-10-28 08:44:52,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:44:52,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:52,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:52,154 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:52,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-28 08:44:54,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:44:54,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:54,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-28 08:44:54,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3267 backedges. 0 proven. 3267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:54,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254358901] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:54,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:54,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-10-28 08:44:54,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748275998] [2021-10-28 08:44:54,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-28 08:44:54,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:54,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-28 08:44:54,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-10-28 08:44:54,662 INFO L87 Difference]: Start difference. First operand 1980 states and 2297 transitions. Second operand has 36 states, 35 states have (on average 5.771428571428571) internal successors, (202), 35 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:54,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:54,970 INFO L93 Difference]: Finished difference Result 3911 states and 4554 transitions. [2021-10-28 08:44:54,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-28 08:44:54,970 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 5.771428571428571) internal successors, (202), 35 states have internal predecessors, (202), 0 states have call successors, (0), 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 202 [2021-10-28 08:44:54,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:54,981 INFO L225 Difference]: With dead ends: 3911 [2021-10-28 08:44:54,981 INFO L226 Difference]: Without dead ends: 3910 [2021-10-28 08:44:54,983 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-10-28 08:44:54,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2021-10-28 08:44:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 2043. [2021-10-28 08:44:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 2041 states have (on average 1.1616854483096521) internal successors, (2371), 2042 states have internal predecessors, (2371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:55,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2371 transitions. [2021-10-28 08:44:55,047 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2371 transitions. Word has length 202 [2021-10-28 08:44:55,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:55,048 INFO L470 AbstractCegarLoop]: Abstraction has 2043 states and 2371 transitions. [2021-10-28 08:44:55,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.771428571428571) internal successors, (202), 35 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2371 transitions. [2021-10-28 08:44:55,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-10-28 08:44:55,051 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:55,051 INFO L513 BasicCegarLoop]: trace histogram [34, 33, 33, 24, 24, 24, 10, 10, 10, 1, 1] [2021-10-28 08:44:55,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:55,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:55,268 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:55,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:55,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1556597393, now seen corresponding path program 17 times [2021-10-28 08:44:55,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:55,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406331354] [2021-10-28 08:44:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:55,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 906 proven. 1704 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-28 08:44:55,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:55,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406331354] [2021-10-28 08:44:55,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406331354] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:55,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847205474] [2021-10-28 08:44:55,723 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:44:55,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:55,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:55,730 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:55,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-10-28 08:44:57,778 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2021-10-28 08:44:57,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:44:57,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-28 08:44:57,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:44:58,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 906 proven. 1704 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-28 08:44:58,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847205474] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:58,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:44:58,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-10-28 08:44:58,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890570321] [2021-10-28 08:44:58,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-28 08:44:58,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:44:58,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-28 08:44:58,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 08:44:58,317 INFO L87 Difference]: Start difference. First operand 2043 states and 2371 transitions. Second operand has 27 states, 27 states have (on average 5.703703703703703) internal successors, (154), 26 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) [2021-10-28 08:44:58,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:44:58,414 INFO L93 Difference]: Finished difference Result 3955 states and 4612 transitions. [2021-10-28 08:44:58,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 08:44:58,415 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.703703703703703) internal successors, (154), 26 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 204 [2021-10-28 08:44:58,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:44:58,417 INFO L225 Difference]: With dead ends: 3955 [2021-10-28 08:44:58,417 INFO L226 Difference]: Without dead ends: 2053 [2021-10-28 08:44:58,419 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 08:44:58,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2021-10-28 08:44:58,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 2049. [2021-10-28 08:44:58,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 2047 states have (on average 1.1612115290669272) internal successors, (2377), 2048 states have internal predecessors, (2377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:44:58,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2377 transitions. [2021-10-28 08:44:58,453 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2377 transitions. Word has length 204 [2021-10-28 08:44:58,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:44:58,453 INFO L470 AbstractCegarLoop]: Abstraction has 2049 states and 2377 transitions. [2021-10-28 08:44:58,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.703703703703703) internal successors, (154), 26 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) [2021-10-28 08:44:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2377 transitions. [2021-10-28 08:44:58,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-10-28 08:44:58,456 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:44:58,456 INFO L513 BasicCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 1, 1] [2021-10-28 08:44:58,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-10-28 08:44:58,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:58,682 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:44:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:44:58,682 INFO L85 PathProgramCache]: Analyzing trace with hash 931349469, now seen corresponding path program 33 times [2021-10-28 08:44:58,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:44:58,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876418280] [2021-10-28 08:44:58,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:44:58,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:44:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:44:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3468 backedges. 0 proven. 3468 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:44:59,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:44:59,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876418280] [2021-10-28 08:44:59,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876418280] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:44:59,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105960725] [2021-10-28 08:44:59,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:44:59,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:44:59,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:44:59,316 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:44:59,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-10-28 08:45:01,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 35 check-sat command(s) [2021-10-28 08:45:01,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:01,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 08:45:01,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:01,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3468 backedges. 0 proven. 3468 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:01,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105960725] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:01,785 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:01,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-10-28 08:45:01,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434354683] [2021-10-28 08:45:01,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-28 08:45:01,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:01,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-28 08:45:01,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-10-28 08:45:01,788 INFO L87 Difference]: Start difference. First operand 2049 states and 2377 transitions. Second operand has 37 states, 36 states have (on average 5.777777777777778) internal successors, (208), 36 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:02,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:02,112 INFO L93 Difference]: Finished difference Result 4045 states and 4710 transitions. [2021-10-28 08:45:02,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-28 08:45:02,113 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 5.777777777777778) internal successors, (208), 36 states have internal predecessors, (208), 0 states have call successors, (0), 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 208 [2021-10-28 08:45:02,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:02,117 INFO L225 Difference]: With dead ends: 4045 [2021-10-28 08:45:02,117 INFO L226 Difference]: Without dead ends: 4044 [2021-10-28 08:45:02,118 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-10-28 08:45:02,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2021-10-28 08:45:02,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 2112. [2021-10-28 08:45:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2112 states, 2110 states have (on average 1.1616113744075829) internal successors, (2451), 2111 states have internal predecessors, (2451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2451 transitions. [2021-10-28 08:45:02,158 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2451 transitions. Word has length 208 [2021-10-28 08:45:02,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:02,159 INFO L470 AbstractCegarLoop]: Abstraction has 2112 states and 2451 transitions. [2021-10-28 08:45:02,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 5.777777777777778) internal successors, (208), 36 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2451 transitions. [2021-10-28 08:45:02,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-10-28 08:45:02,161 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:02,161 INFO L513 BasicCegarLoop]: trace histogram [35, 34, 34, 25, 25, 25, 10, 10, 10, 1, 1] [2021-10-28 08:45:02,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2021-10-28 08:45:02,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:02,362 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:02,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:02,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1289344970, now seen corresponding path program 18 times [2021-10-28 08:45:02,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:02,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903765981] [2021-10-28 08:45:02,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:02,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:02,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3036 backedges. 943 proven. 1850 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-10-28 08:45:02,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:02,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903765981] [2021-10-28 08:45:02,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903765981] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:02,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001295399] [2021-10-28 08:45:02,803 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:45:02,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:02,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:02,806 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:02,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-10-28 08:45:04,852 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2021-10-28 08:45:04,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:04,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 08:45:04,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3036 backedges. 1149 proven. 323 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2021-10-28 08:45:05,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001295399] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:05,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:05,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 13] total 40 [2021-10-28 08:45:05,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127428457] [2021-10-28 08:45:05,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-28 08:45:05,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:05,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-28 08:45:05,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 08:45:05,673 INFO L87 Difference]: Start difference. First operand 2112 states and 2451 transitions. Second operand has 40 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:05,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:05,855 INFO L93 Difference]: Finished difference Result 4413 states and 5193 transitions. [2021-10-28 08:45:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-28 08:45:05,855 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-10-28 08:45:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:05,858 INFO L225 Difference]: With dead ends: 4413 [2021-10-28 08:45:05,858 INFO L226 Difference]: Without dead ends: 2448 [2021-10-28 08:45:05,860 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 08:45:05,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2021-10-28 08:45:05,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 2424. [2021-10-28 08:45:05,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 2422 states have (on average 1.1610239471511148) internal successors, (2812), 2423 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 2812 transitions. [2021-10-28 08:45:05,938 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 2812 transitions. Word has length 210 [2021-10-28 08:45:05,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:05,939 INFO L470 AbstractCegarLoop]: Abstraction has 2424 states and 2812 transitions. [2021-10-28 08:45:05,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:05,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 2812 transitions. [2021-10-28 08:45:05,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-10-28 08:45:05,942 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:05,942 INFO L513 BasicCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 1, 1] [2021-10-28 08:45:05,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:06,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-10-28 08:45:06,166 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:06,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:06,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1997927274, now seen corresponding path program 34 times [2021-10-28 08:45:06,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:06,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082133312] [2021-10-28 08:45:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:06,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3675 backedges. 0 proven. 3675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:06,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:06,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082133312] [2021-10-28 08:45:06,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082133312] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:06,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416301289] [2021-10-28 08:45:06,825 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:45:06,825 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:06,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:06,828 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:06,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-28 08:45:08,700 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:45:08,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:08,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-28 08:45:08,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3675 backedges. 0 proven. 3675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:09,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416301289] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:09,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:09,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-10-28 08:45:09,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069685632] [2021-10-28 08:45:09,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-28 08:45:09,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:09,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-28 08:45:09,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-28 08:45:09,313 INFO L87 Difference]: Start difference. First operand 2424 states and 2812 transitions. Second operand has 38 states, 37 states have (on average 5.783783783783784) internal successors, (214), 37 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:09,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:09,639 INFO L93 Difference]: Finished difference Result 4791 states and 5578 transitions. [2021-10-28 08:45:09,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-28 08:45:09,639 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 5.783783783783784) internal successors, (214), 37 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2021-10-28 08:45:09,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:09,645 INFO L225 Difference]: With dead ends: 4791 [2021-10-28 08:45:09,645 INFO L226 Difference]: Without dead ends: 4790 [2021-10-28 08:45:09,647 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-28 08:45:09,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4790 states. [2021-10-28 08:45:09,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4790 to 2499. [2021-10-28 08:45:09,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 2497 states have (on average 1.1613936724068883) internal successors, (2900), 2498 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:09,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 2900 transitions. [2021-10-28 08:45:09,815 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 2900 transitions. Word has length 214 [2021-10-28 08:45:09,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:09,816 INFO L470 AbstractCegarLoop]: Abstraction has 2499 states and 2900 transitions. [2021-10-28 08:45:09,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 5.783783783783784) internal successors, (214), 37 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:09,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 2900 transitions. [2021-10-28 08:45:09,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-10-28 08:45:09,818 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:09,818 INFO L513 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 1, 1] [2021-10-28 08:45:09,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:10,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-10-28 08:45:10,046 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:10,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:10,046 INFO L85 PathProgramCache]: Analyzing trace with hash -830757233, now seen corresponding path program 35 times [2021-10-28 08:45:10,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:10,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890900810] [2021-10-28 08:45:10,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:10,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:10,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3888 backedges. 0 proven. 3888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:10,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:10,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890900810] [2021-10-28 08:45:10,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890900810] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:10,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590888237] [2021-10-28 08:45:10,729 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:45:10,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:10,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:10,730 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:10,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-28 08:45:12,694 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2021-10-28 08:45:12,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:12,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 08:45:12,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3888 backedges. 0 proven. 3888 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:13,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590888237] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:13,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:13,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-10-28 08:45:13,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213410047] [2021-10-28 08:45:13,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-10-28 08:45:13,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:13,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-10-28 08:45:13,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 08:45:13,301 INFO L87 Difference]: Start difference. First operand 2499 states and 2900 transitions. Second operand has 39 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 38 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:13,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:13,625 INFO L93 Difference]: Finished difference Result 4943 states and 5756 transitions. [2021-10-28 08:45:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-28 08:45:13,626 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 38 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2021-10-28 08:45:13,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:13,630 INFO L225 Difference]: With dead ends: 4943 [2021-10-28 08:45:13,630 INFO L226 Difference]: Without dead ends: 4942 [2021-10-28 08:45:13,632 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 08:45:13,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4942 states. [2021-10-28 08:45:13,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4942 to 2574. [2021-10-28 08:45:13,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2574 states, 2572 states have (on average 1.1617418351477449) internal successors, (2988), 2573 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:13,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 2988 transitions. [2021-10-28 08:45:13,736 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 2988 transitions. Word has length 220 [2021-10-28 08:45:13,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:13,736 INFO L470 AbstractCegarLoop]: Abstraction has 2574 states and 2988 transitions. [2021-10-28 08:45:13,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 38 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 2988 transitions. [2021-10-28 08:45:13,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-10-28 08:45:13,740 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:13,740 INFO L513 BasicCegarLoop]: trace histogram [38, 38, 37, 37, 37, 37, 1, 1] [2021-10-28 08:45:13,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:13,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-10-28 08:45:13,954 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:13,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:13,954 INFO L85 PathProgramCache]: Analyzing trace with hash -257547832, now seen corresponding path program 36 times [2021-10-28 08:45:13,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:13,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295030520] [2021-10-28 08:45:13,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:13,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:14,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 0 proven. 4107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:14,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:14,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295030520] [2021-10-28 08:45:14,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295030520] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:14,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904205066] [2021-10-28 08:45:14,635 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:45:14,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:14,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:14,636 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:14,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-10-28 08:45:16,665 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 38 check-sat command(s) [2021-10-28 08:45:16,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:16,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 08:45:16,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 0 proven. 4107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:17,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904205066] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:17,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:17,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-10-28 08:45:17,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624132394] [2021-10-28 08:45:17,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-28 08:45:17,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:17,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-28 08:45:17,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 08:45:17,286 INFO L87 Difference]: Start difference. First operand 2574 states and 2988 transitions. Second operand has 40 states, 39 states have (on average 5.794871794871795) internal successors, (226), 39 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:17,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:17,667 INFO L93 Difference]: Finished difference Result 5095 states and 5934 transitions. [2021-10-28 08:45:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-28 08:45:17,668 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 5.794871794871795) internal successors, (226), 39 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2021-10-28 08:45:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:17,671 INFO L225 Difference]: With dead ends: 5095 [2021-10-28 08:45:17,672 INFO L226 Difference]: Without dead ends: 5094 [2021-10-28 08:45:17,672 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-28 08:45:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5094 states. [2021-10-28 08:45:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5094 to 2649. [2021-10-28 08:45:17,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2647 states have (on average 1.162070268228183) internal successors, (3076), 2648 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:17,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 3076 transitions. [2021-10-28 08:45:17,716 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 3076 transitions. Word has length 226 [2021-10-28 08:45:17,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:17,717 INFO L470 AbstractCegarLoop]: Abstraction has 2649 states and 3076 transitions. [2021-10-28 08:45:17,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 5.794871794871795) internal successors, (226), 39 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:17,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 3076 transitions. [2021-10-28 08:45:17,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-10-28 08:45:17,719 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:17,719 INFO L513 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 1, 1] [2021-10-28 08:45:17,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2021-10-28 08:45:17,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:17,922 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:17,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:17,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1324642751, now seen corresponding path program 37 times [2021-10-28 08:45:17,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:17,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818884960] [2021-10-28 08:45:17,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:17,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 4332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:18,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:18,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818884960] [2021-10-28 08:45:18,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818884960] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:18,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335887460] [2021-10-28 08:45:18,646 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:45:18,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:18,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:18,649 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:18,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-10-28 08:45:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:20,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-28 08:45:20,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:21,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 4332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:21,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335887460] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:21,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:21,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-10-28 08:45:21,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602782900] [2021-10-28 08:45:21,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-28 08:45:21,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:21,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-28 08:45:21,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-10-28 08:45:21,539 INFO L87 Difference]: Start difference. First operand 2649 states and 3076 transitions. Second operand has 41 states, 40 states have (on average 5.8) internal successors, (232), 40 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:21,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:21,934 INFO L93 Difference]: Finished difference Result 5247 states and 6112 transitions. [2021-10-28 08:45:21,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-28 08:45:21,934 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 5.8) internal successors, (232), 40 states have internal predecessors, (232), 0 states have call successors, (0), 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 232 [2021-10-28 08:45:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:21,940 INFO L225 Difference]: With dead ends: 5247 [2021-10-28 08:45:21,940 INFO L226 Difference]: Without dead ends: 5246 [2021-10-28 08:45:21,941 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-10-28 08:45:21,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5246 states. [2021-10-28 08:45:22,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5246 to 2724. [2021-10-28 08:45:22,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 2722 states have (on average 1.162380602498163) internal successors, (3164), 2723 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 3164 transitions. [2021-10-28 08:45:22,012 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 3164 transitions. Word has length 232 [2021-10-28 08:45:22,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:22,013 INFO L470 AbstractCegarLoop]: Abstraction has 2724 states and 3164 transitions. [2021-10-28 08:45:22,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 5.8) internal successors, (232), 40 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:22,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 3164 transitions. [2021-10-28 08:45:22,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-28 08:45:22,015 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:22,016 INFO L513 BasicCegarLoop]: trace histogram [39, 38, 38, 27, 27, 27, 12, 12, 12, 1, 1] [2021-10-28 08:45:22,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:22,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:22,216 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:22,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:22,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1381135010, now seen corresponding path program 19 times [2021-10-28 08:45:22,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:22,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743359079] [2021-10-28 08:45:22,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:22,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3760 backedges. 1237 proven. 2160 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-28 08:45:22,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:22,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743359079] [2021-10-28 08:45:22,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743359079] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:22,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976590907] [2021-10-28 08:45:22,733 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:45:22,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:22,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:22,738 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:22,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-10-28 08:45:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:25,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-28 08:45:25,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3760 backedges. 1237 proven. 2160 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-28 08:45:25,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976590907] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:25,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:25,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-10-28 08:45:25,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075515853] [2021-10-28 08:45:25,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-28 08:45:25,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:25,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-28 08:45:25,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-28 08:45:25,946 INFO L87 Difference]: Start difference. First operand 2724 states and 3164 transitions. Second operand has 30 states, 30 states have (on average 5.733333333333333) internal successors, (172), 29 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:26,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:26,065 INFO L93 Difference]: Finished difference Result 5299 states and 6180 transitions. [2021-10-28 08:45:26,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-28 08:45:26,065 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.733333333333333) internal successors, (172), 29 states have internal predecessors, (172), 0 states have call successors, (0), 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 234 [2021-10-28 08:45:26,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:26,072 INFO L225 Difference]: With dead ends: 5299 [2021-10-28 08:45:26,072 INFO L226 Difference]: Without dead ends: 2734 [2021-10-28 08:45:26,076 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-28 08:45:26,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2021-10-28 08:45:26,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2730. [2021-10-28 08:45:26,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2730 states, 2728 states have (on average 1.1620234604105573) internal successors, (3170), 2729 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:26,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2730 states to 2730 states and 3170 transitions. [2021-10-28 08:45:26,152 INFO L78 Accepts]: Start accepts. Automaton has 2730 states and 3170 transitions. Word has length 234 [2021-10-28 08:45:26,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:26,152 INFO L470 AbstractCegarLoop]: Abstraction has 2730 states and 3170 transitions. [2021-10-28 08:45:26,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.733333333333333) internal successors, (172), 29 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2730 states and 3170 transitions. [2021-10-28 08:45:26,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-10-28 08:45:26,157 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:26,157 INFO L513 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 1, 1] [2021-10-28 08:45:26,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:26,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:26,358 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:26,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:26,358 INFO L85 PathProgramCache]: Analyzing trace with hash -209585158, now seen corresponding path program 38 times [2021-10-28 08:45:26,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:26,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885620927] [2021-10-28 08:45:26,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:26,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:27,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 0 proven. 4563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:27,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:27,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885620927] [2021-10-28 08:45:27,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885620927] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:27,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972734179] [2021-10-28 08:45:27,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:45:27,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:27,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:27,210 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:27,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-10-28 08:45:29,674 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:45:29,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:29,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-28 08:45:29,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4563 backedges. 0 proven. 4563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:30,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972734179] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:30,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:30,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-10-28 08:45:30,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881591846] [2021-10-28 08:45:30,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-28 08:45:30,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:30,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-28 08:45:30,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-28 08:45:30,384 INFO L87 Difference]: Start difference. First operand 2730 states and 3170 transitions. Second operand has 42 states, 41 states have (on average 5.804878048780488) internal successors, (238), 41 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:30,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:30,742 INFO L93 Difference]: Finished difference Result 5405 states and 6296 transitions. [2021-10-28 08:45:30,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-28 08:45:30,742 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 5.804878048780488) internal successors, (238), 41 states have internal predecessors, (238), 0 states have call successors, (0), 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 238 [2021-10-28 08:45:30,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:30,747 INFO L225 Difference]: With dead ends: 5405 [2021-10-28 08:45:30,748 INFO L226 Difference]: Without dead ends: 5404 [2021-10-28 08:45:30,749 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-28 08:45:30,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2021-10-28 08:45:30,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 2805. [2021-10-28 08:45:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2803 states have (on average 1.1623260792008563) internal successors, (3258), 2804 states have internal predecessors, (3258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:30,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 3258 transitions. [2021-10-28 08:45:30,805 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 3258 transitions. Word has length 238 [2021-10-28 08:45:30,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:30,805 INFO L470 AbstractCegarLoop]: Abstraction has 2805 states and 3258 transitions. [2021-10-28 08:45:30,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 5.804878048780488) internal successors, (238), 41 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:30,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 3258 transitions. [2021-10-28 08:45:30,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-10-28 08:45:30,807 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:30,808 INFO L513 BasicCegarLoop]: trace histogram [40, 39, 39, 28, 28, 28, 12, 12, 12, 1, 1] [2021-10-28 08:45:30,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2021-10-28 08:45:31,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-10-28 08:45:31,011 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:31,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:31,011 INFO L85 PathProgramCache]: Analyzing trace with hash -790342117, now seen corresponding path program 20 times [2021-10-28 08:45:31,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:31,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463819063] [2021-10-28 08:45:31,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:31,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:31,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3969 backedges. 1282 proven. 2324 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-28 08:45:31,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:31,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463819063] [2021-10-28 08:45:31,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463819063] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:31,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566655696] [2021-10-28 08:45:31,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:45:31,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:31,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:31,487 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:31,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-10-28 08:45:34,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:45:34,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:34,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 08:45:34,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3969 backedges. 1282 proven. 2324 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-28 08:45:34,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566655696] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:34,690 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:34,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-10-28 08:45:34,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551580143] [2021-10-28 08:45:34,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-28 08:45:34,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:34,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-28 08:45:34,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-28 08:45:34,692 INFO L87 Difference]: Start difference. First operand 2805 states and 3258 transitions. Second operand has 31 states, 31 states have (on average 5.741935483870968) internal successors, (178), 30 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:34,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:34,810 INFO L93 Difference]: Finished difference Result 5455 states and 6362 transitions. [2021-10-28 08:45:34,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-28 08:45:34,810 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 5.741935483870968) internal successors, (178), 30 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2021-10-28 08:45:34,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:34,813 INFO L225 Difference]: With dead ends: 5455 [2021-10-28 08:45:34,813 INFO L226 Difference]: Without dead ends: 2815 [2021-10-28 08:45:34,816 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-28 08:45:34,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2021-10-28 08:45:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2811. [2021-10-28 08:45:34,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2809 states have (on average 1.1619793520825916) internal successors, (3264), 2810 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:34,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3264 transitions. [2021-10-28 08:45:34,893 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3264 transitions. Word has length 240 [2021-10-28 08:45:34,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:34,893 INFO L470 AbstractCegarLoop]: Abstraction has 2811 states and 3264 transitions. [2021-10-28 08:45:34,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.741935483870968) internal successors, (178), 30 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:34,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3264 transitions. [2021-10-28 08:45:34,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-10-28 08:45:34,897 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:34,897 INFO L513 BasicCegarLoop]: trace histogram [41, 41, 40, 40, 40, 40, 1, 1] [2021-10-28 08:45:34,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:35,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:35,114 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:35,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:35,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1192458995, now seen corresponding path program 39 times [2021-10-28 08:45:35,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:35,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843956309] [2021-10-28 08:45:35,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:35,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 0 proven. 4800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:36,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:36,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843956309] [2021-10-28 08:45:36,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843956309] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:36,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050493122] [2021-10-28 08:45:36,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:45:36,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:36,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:36,148 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:36,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-28 08:45:38,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 41 check-sat command(s) [2021-10-28 08:45:38,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:38,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 08:45:38,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 0 proven. 4800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:39,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050493122] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:39,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:39,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-10-28 08:45:39,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895783300] [2021-10-28 08:45:39,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-28 08:45:39,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:39,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-28 08:45:39,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-28 08:45:39,672 INFO L87 Difference]: Start difference. First operand 2811 states and 3264 transitions. Second operand has 43 states, 42 states have (on average 5.809523809523809) internal successors, (244), 42 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:40,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:40,173 INFO L93 Difference]: Finished difference Result 5563 states and 6480 transitions. [2021-10-28 08:45:40,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-28 08:45:40,174 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 5.809523809523809) internal successors, (244), 42 states have internal predecessors, (244), 0 states have call successors, (0), 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 244 [2021-10-28 08:45:40,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:40,181 INFO L225 Difference]: With dead ends: 5563 [2021-10-28 08:45:40,182 INFO L226 Difference]: Without dead ends: 5562 [2021-10-28 08:45:40,184 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-28 08:45:40,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2021-10-28 08:45:40,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 2886. [2021-10-28 08:45:40,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2884 states have (on average 1.1622746185852981) internal successors, (3352), 2885 states have internal predecessors, (3352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:40,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3352 transitions. [2021-10-28 08:45:40,246 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3352 transitions. Word has length 244 [2021-10-28 08:45:40,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:40,247 INFO L470 AbstractCegarLoop]: Abstraction has 2886 states and 3352 transitions. [2021-10-28 08:45:40,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 5.809523809523809) internal successors, (244), 42 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:40,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3352 transitions. [2021-10-28 08:45:40,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-10-28 08:45:40,249 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:40,249 INFO L513 BasicCegarLoop]: trace histogram [41, 40, 40, 29, 29, 29, 12, 12, 12, 1, 1] [2021-10-28 08:45:40,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:40,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:40,450 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:40,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:40,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2045642028, now seen corresponding path program 21 times [2021-10-28 08:45:40,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:40,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544910074] [2021-10-28 08:45:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:40,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4184 backedges. 1327 proven. 2494 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-10-28 08:45:40,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:40,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544910074] [2021-10-28 08:45:40,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544910074] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:40,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705690822] [2021-10-28 08:45:40,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:45:40,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:40,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:40,947 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:40,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-28 08:45:43,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2021-10-28 08:45:43,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:43,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 08:45:43,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4184 backedges. 1565 proven. 459 refuted. 0 times theorem prover too weak. 2160 trivial. 0 not checked. [2021-10-28 08:45:44,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705690822] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:44,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:44,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 15] total 46 [2021-10-28 08:45:44,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304902815] [2021-10-28 08:45:44,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-28 08:45:44,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:44,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-28 08:45:44,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 08:45:44,580 INFO L87 Difference]: Start difference. First operand 2886 states and 3352 transitions. Second operand has 46 states, 46 states have (on average 5.934782608695652) internal successors, (273), 46 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:44,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:44,804 INFO L93 Difference]: Finished difference Result 5989 states and 7039 transitions. [2021-10-28 08:45:44,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-28 08:45:44,805 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 5.934782608695652) internal successors, (273), 46 states have internal predecessors, (273), 0 states have call successors, (0), 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 246 [2021-10-28 08:45:44,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:44,808 INFO L225 Difference]: With dead ends: 5989 [2021-10-28 08:45:44,808 INFO L226 Difference]: Without dead ends: 3274 [2021-10-28 08:45:44,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 08:45:44,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2021-10-28 08:45:44,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3246. [2021-10-28 08:45:44,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3244 states have (on average 1.1618372379778052) internal successors, (3769), 3245 states have internal predecessors, (3769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 3769 transitions. [2021-10-28 08:45:44,895 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 3769 transitions. Word has length 246 [2021-10-28 08:45:44,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:44,896 INFO L470 AbstractCegarLoop]: Abstraction has 3246 states and 3769 transitions. [2021-10-28 08:45:44,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 5.934782608695652) internal successors, (273), 46 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:44,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 3769 transitions. [2021-10-28 08:45:44,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-10-28 08:45:44,899 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:44,899 INFO L513 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 41, 41, 1, 1] [2021-10-28 08:45:44,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:45,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-10-28 08:45:45,114 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:45,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1359078612, now seen corresponding path program 40 times [2021-10-28 08:45:45,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:45,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418701361] [2021-10-28 08:45:45,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:45,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:45,984 INFO L134 CoverageAnalysis]: Checked inductivity of 5043 backedges. 0 proven. 5043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:45,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:45,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418701361] [2021-10-28 08:45:45,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418701361] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:45,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006403813] [2021-10-28 08:45:45,985 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:45:45,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:45,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:45,986 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:45,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-10-28 08:45:48,382 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:45:48,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:48,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-28 08:45:48,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5043 backedges. 0 proven. 5043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:49,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006403813] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:49,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:49,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-10-28 08:45:49,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359363852] [2021-10-28 08:45:49,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-10-28 08:45:49,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:49,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-10-28 08:45:49,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-10-28 08:45:49,102 INFO L87 Difference]: Start difference. First operand 3246 states and 3769 transitions. Second operand has 44 states, 43 states have (on average 5.813953488372093) internal successors, (250), 43 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:49,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:49,434 INFO L93 Difference]: Finished difference Result 6429 states and 7488 transitions. [2021-10-28 08:45:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-28 08:45:49,435 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 5.813953488372093) internal successors, (250), 43 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2021-10-28 08:45:49,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:49,440 INFO L225 Difference]: With dead ends: 6429 [2021-10-28 08:45:49,440 INFO L226 Difference]: Without dead ends: 6428 [2021-10-28 08:45:49,442 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-10-28 08:45:49,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6428 states. [2021-10-28 08:45:49,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6428 to 3333. [2021-10-28 08:45:49,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3333 states, 3331 states have (on average 1.162113479435605) internal successors, (3871), 3332 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:49,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 3871 transitions. [2021-10-28 08:45:49,522 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 3871 transitions. Word has length 250 [2021-10-28 08:45:49,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:49,522 INFO L470 AbstractCegarLoop]: Abstraction has 3333 states and 3871 transitions. [2021-10-28 08:45:49,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 5.813953488372093) internal successors, (250), 43 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:49,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 3871 transitions. [2021-10-28 08:45:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-10-28 08:45:49,524 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:49,524 INFO L513 BasicCegarLoop]: trace histogram [43, 43, 42, 42, 42, 42, 1, 1] [2021-10-28 08:45:49,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:49,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-10-28 08:45:49,726 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:49,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1414271835, now seen corresponding path program 41 times [2021-10-28 08:45:49,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:49,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624214688] [2021-10-28 08:45:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:49,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5292 backedges. 0 proven. 5292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:50,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:50,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624214688] [2021-10-28 08:45:50,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624214688] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:50,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671589663] [2021-10-28 08:45:50,541 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:45:50,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:50,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:50,543 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:50,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-10-28 08:45:53,175 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 43 check-sat command(s) [2021-10-28 08:45:53,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:53,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-28 08:45:53,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 5292 backedges. 0 proven. 5292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:53,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671589663] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:53,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:53,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-10-28 08:45:53,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728419639] [2021-10-28 08:45:53,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-10-28 08:45:53,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:53,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-10-28 08:45:53,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-10-28 08:45:53,849 INFO L87 Difference]: Start difference. First operand 3333 states and 3871 transitions. Second operand has 45 states, 44 states have (on average 5.818181818181818) internal successors, (256), 44 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:54,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:54,190 INFO L93 Difference]: Finished difference Result 6605 states and 7694 transitions. [2021-10-28 08:45:54,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-28 08:45:54,191 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 5.818181818181818) internal successors, (256), 44 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2021-10-28 08:45:54,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:54,197 INFO L225 Difference]: With dead ends: 6605 [2021-10-28 08:45:54,197 INFO L226 Difference]: Without dead ends: 6604 [2021-10-28 08:45:54,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-10-28 08:45:54,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6604 states. [2021-10-28 08:45:54,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6604 to 3420. [2021-10-28 08:45:54,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3420 states, 3418 states have (on average 1.1623756582796958) internal successors, (3973), 3419 states have internal predecessors, (3973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:54,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3420 states to 3420 states and 3973 transitions. [2021-10-28 08:45:54,295 INFO L78 Accepts]: Start accepts. Automaton has 3420 states and 3973 transitions. Word has length 256 [2021-10-28 08:45:54,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:54,295 INFO L470 AbstractCegarLoop]: Abstraction has 3420 states and 3973 transitions. [2021-10-28 08:45:54,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 5.818181818181818) internal successors, (256), 44 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:54,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3420 states and 3973 transitions. [2021-10-28 08:45:54,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-10-28 08:45:54,297 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:54,298 INFO L513 BasicCegarLoop]: trace histogram [44, 44, 43, 43, 43, 43, 1, 1] [2021-10-28 08:45:54,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-10-28 08:45:54,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-10-28 08:45:54,498 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:54,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:54,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2082799778, now seen corresponding path program 42 times [2021-10-28 08:45:54,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:54,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368039066] [2021-10-28 08:45:54,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:54,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:45:55,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5547 backedges. 0 proven. 5547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:55,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:45:55,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368039066] [2021-10-28 08:45:55,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368039066] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:55,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069481892] [2021-10-28 08:45:55,310 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:45:55,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:55,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:45:55,311 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:45:55,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-10-28 08:45:57,998 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 44 check-sat command(s) [2021-10-28 08:45:57,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:45:58,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-28 08:45:58,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:45:58,774 INFO L134 CoverageAnalysis]: Checked inductivity of 5547 backedges. 0 proven. 5547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:45:58,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069481892] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:45:58,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:45:58,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-10-28 08:45:58,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289701631] [2021-10-28 08:45:58,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-28 08:45:58,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:45:58,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-28 08:45:58,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 08:45:58,778 INFO L87 Difference]: Start difference. First operand 3420 states and 3973 transitions. Second operand has 46 states, 45 states have (on average 5.822222222222222) internal successors, (262), 45 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:59,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:45:59,196 INFO L93 Difference]: Finished difference Result 6781 states and 7900 transitions. [2021-10-28 08:45:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-28 08:45:59,197 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 5.822222222222222) internal successors, (262), 45 states have internal predecessors, (262), 0 states have call successors, (0), 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 262 [2021-10-28 08:45:59,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:45:59,203 INFO L225 Difference]: With dead ends: 6781 [2021-10-28 08:45:59,203 INFO L226 Difference]: Without dead ends: 6780 [2021-10-28 08:45:59,205 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 08:45:59,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6780 states. [2021-10-28 08:45:59,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6780 to 3507. [2021-10-28 08:45:59,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3505 states have (on average 1.1626248216833095) internal successors, (4075), 3506 states have internal predecessors, (4075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 4075 transitions. [2021-10-28 08:45:59,270 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 4075 transitions. Word has length 262 [2021-10-28 08:45:59,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:45:59,271 INFO L470 AbstractCegarLoop]: Abstraction has 3507 states and 4075 transitions. [2021-10-28 08:45:59,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 5.822222222222222) internal successors, (262), 45 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:45:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 4075 transitions. [2021-10-28 08:45:59,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-10-28 08:45:59,273 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:45:59,273 INFO L513 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 1, 1] [2021-10-28 08:45:59,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2021-10-28 08:45:59,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:45:59,474 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:45:59,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:45:59,474 INFO L85 PathProgramCache]: Analyzing trace with hash -850566313, now seen corresponding path program 43 times [2021-10-28 08:45:59,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:45:59,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64295195] [2021-10-28 08:45:59,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:45:59,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:45:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:00,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5808 backedges. 0 proven. 5808 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:00,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:00,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64295195] [2021-10-28 08:46:00,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64295195] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:00,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090683388] [2021-10-28 08:46:00,403 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:46:00,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:00,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:00,404 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:00,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-10-28 08:46:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:03,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-28 08:46:03,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5808 backedges. 0 proven. 5808 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:04,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090683388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:04,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:04,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-10-28 08:46:04,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614802249] [2021-10-28 08:46:04,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-10-28 08:46:04,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:04,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-10-28 08:46:04,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 08:46:04,108 INFO L87 Difference]: Start difference. First operand 3507 states and 4075 transitions. Second operand has 47 states, 46 states have (on average 5.826086956521739) internal successors, (268), 46 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:04,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:04,506 INFO L93 Difference]: Finished difference Result 6957 states and 8106 transitions. [2021-10-28 08:46:04,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-28 08:46:04,507 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 5.826086956521739) internal successors, (268), 46 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2021-10-28 08:46:04,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:04,514 INFO L225 Difference]: With dead ends: 6957 [2021-10-28 08:46:04,514 INFO L226 Difference]: Without dead ends: 6956 [2021-10-28 08:46:04,515 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 08:46:04,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2021-10-28 08:46:04,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 3594. [2021-10-28 08:46:04,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3594 states, 3592 states have (on average 1.1628619153674833) internal successors, (4177), 3593 states have internal predecessors, (4177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:04,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3594 states to 3594 states and 4177 transitions. [2021-10-28 08:46:04,582 INFO L78 Accepts]: Start accepts. Automaton has 3594 states and 4177 transitions. Word has length 268 [2021-10-28 08:46:04,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:04,583 INFO L470 AbstractCegarLoop]: Abstraction has 3594 states and 4177 transitions. [2021-10-28 08:46:04,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 5.826086956521739) internal successors, (268), 46 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:04,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3594 states and 4177 transitions. [2021-10-28 08:46:04,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-10-28 08:46:04,585 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:04,585 INFO L513 BasicCegarLoop]: trace histogram [45, 44, 44, 31, 31, 31, 14, 14, 14, 1, 1] [2021-10-28 08:46:04,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:04,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-10-28 08:46:04,790 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:46:04,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:04,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1433281964, now seen corresponding path program 22 times [2021-10-28 08:46:04,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:04,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316606340] [2021-10-28 08:46:04,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:04,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 5028 backedges. 1669 proven. 2852 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-10-28 08:46:05,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:05,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316606340] [2021-10-28 08:46:05,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316606340] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:05,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195406847] [2021-10-28 08:46:05,340 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:46:05,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:05,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:05,341 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:05,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-10-28 08:46:08,334 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:46:08,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:08,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-28 08:46:08,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 5028 backedges. 1669 proven. 2852 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-10-28 08:46:09,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195406847] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:09,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:09,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-10-28 08:46:09,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791220634] [2021-10-28 08:46:09,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-28 08:46:09,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:09,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-28 08:46:09,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 08:46:09,169 INFO L87 Difference]: Start difference. First operand 3594 states and 4177 transitions. Second operand has 34 states, 34 states have (on average 5.764705882352941) internal successors, (196), 33 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:09,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:09,309 INFO L93 Difference]: Finished difference Result 7015 states and 8182 transitions. [2021-10-28 08:46:09,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-28 08:46:09,309 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.764705882352941) internal successors, (196), 33 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2021-10-28 08:46:09,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:09,313 INFO L225 Difference]: With dead ends: 7015 [2021-10-28 08:46:09,313 INFO L226 Difference]: Without dead ends: 3604 [2021-10-28 08:46:09,316 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 08:46:09,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2021-10-28 08:46:09,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 3600. [2021-10-28 08:46:09,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3598 states have (on average 1.1625903279599779) internal successors, (4183), 3599 states have internal predecessors, (4183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:09,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 4183 transitions. [2021-10-28 08:46:09,384 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 4183 transitions. Word has length 270 [2021-10-28 08:46:09,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:09,384 INFO L470 AbstractCegarLoop]: Abstraction has 3600 states and 4183 transitions. [2021-10-28 08:46:09,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.764705882352941) internal successors, (196), 33 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:09,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 4183 transitions. [2021-10-28 08:46:09,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-10-28 08:46:09,387 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:09,387 INFO L513 BasicCegarLoop]: trace histogram [46, 46, 45, 45, 45, 45, 1, 1] [2021-10-28 08:46:09,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2021-10-28 08:46:09,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:09,588 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:46:09,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:09,588 INFO L85 PathProgramCache]: Analyzing trace with hash 907618448, now seen corresponding path program 44 times [2021-10-28 08:46:09,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:09,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310230520] [2021-10-28 08:46:09,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:09,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:10,573 INFO L134 CoverageAnalysis]: Checked inductivity of 6075 backedges. 0 proven. 6075 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:10,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:10,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310230520] [2021-10-28 08:46:10,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310230520] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:10,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273408082] [2021-10-28 08:46:10,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:46:10,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:10,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:10,575 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:10,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-10-28 08:46:13,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:46:13,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:13,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-28 08:46:13,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 6075 backedges. 0 proven. 6075 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:14,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273408082] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:14,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:14,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-10-28 08:46:14,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394537216] [2021-10-28 08:46:14,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-10-28 08:46:14,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:14,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-10-28 08:46:14,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-10-28 08:46:14,431 INFO L87 Difference]: Start difference. First operand 3600 states and 4183 transitions. Second operand has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 47 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) [2021-10-28 08:46:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:14,879 INFO L93 Difference]: Finished difference Result 7139 states and 8318 transitions. [2021-10-28 08:46:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-28 08:46:14,880 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 47 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) Word has length 274 [2021-10-28 08:46:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:14,888 INFO L225 Difference]: With dead ends: 7139 [2021-10-28 08:46:14,888 INFO L226 Difference]: Without dead ends: 7138 [2021-10-28 08:46:14,890 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-10-28 08:46:14,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7138 states. [2021-10-28 08:46:14,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7138 to 3687. [2021-10-28 08:46:14,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 3685 states have (on average 1.162822252374491) internal successors, (4285), 3686 states have internal predecessors, (4285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:14,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 4285 transitions. [2021-10-28 08:46:14,984 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 4285 transitions. Word has length 274 [2021-10-28 08:46:14,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:14,985 INFO L470 AbstractCegarLoop]: Abstraction has 3687 states and 4285 transitions. [2021-10-28 08:46:14,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.829787234042553) internal successors, (274), 47 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) [2021-10-28 08:46:14,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 4285 transitions. [2021-10-28 08:46:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-10-28 08:46:14,989 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:14,989 INFO L513 BasicCegarLoop]: trace histogram [46, 45, 45, 32, 32, 32, 14, 14, 14, 1, 1] [2021-10-28 08:46:15,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2021-10-28 08:46:15,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:15,190 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:46:15,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:15,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1168277339, now seen corresponding path program 23 times [2021-10-28 08:46:15,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:15,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612293126] [2021-10-28 08:46:15,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:15,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 5269 backedges. 1722 proven. 3040 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-10-28 08:46:15,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:15,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612293126] [2021-10-28 08:46:15,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612293126] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:15,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868703028] [2021-10-28 08:46:15,737 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:46:15,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:15,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:15,738 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:15,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-10-28 08:46:18,710 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 34 check-sat command(s) [2021-10-28 08:46:18,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:18,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-28 08:46:18,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:19,513 INFO L134 CoverageAnalysis]: Checked inductivity of 5269 backedges. 1722 proven. 3040 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-10-28 08:46:19,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868703028] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:19,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:19,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-10-28 08:46:19,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248972858] [2021-10-28 08:46:19,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-28 08:46:19,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:19,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-28 08:46:19,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 08:46:19,516 INFO L87 Difference]: Start difference. First operand 3687 states and 4285 transitions. Second operand has 35 states, 35 states have (on average 5.771428571428571) internal successors, (202), 34 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:19,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:19,702 INFO L93 Difference]: Finished difference Result 7195 states and 8392 transitions. [2021-10-28 08:46:19,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-28 08:46:19,702 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 5.771428571428571) internal successors, (202), 34 states have internal predecessors, (202), 0 states have call successors, (0), 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 276 [2021-10-28 08:46:19,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:19,707 INFO L225 Difference]: With dead ends: 7195 [2021-10-28 08:46:19,707 INFO L226 Difference]: Without dead ends: 3697 [2021-10-28 08:46:19,711 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-28 08:46:19,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2021-10-28 08:46:19,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3693. [2021-10-28 08:46:19,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 3691 states have (on average 1.1625575724735844) internal successors, (4291), 3692 states have internal predecessors, (4291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 4291 transitions. [2021-10-28 08:46:19,812 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 4291 transitions. Word has length 276 [2021-10-28 08:46:19,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:19,812 INFO L470 AbstractCegarLoop]: Abstraction has 3693 states and 4291 transitions. [2021-10-28 08:46:19,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 5.771428571428571) internal successors, (202), 34 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:19,812 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 4291 transitions. [2021-10-28 08:46:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-10-28 08:46:19,815 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:19,815 INFO L513 BasicCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1] [2021-10-28 08:46:19,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2021-10-28 08:46:20,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2021-10-28 08:46:20,015 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:46:20,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:20,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1920966903, now seen corresponding path program 45 times [2021-10-28 08:46:20,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:20,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384930555] [2021-10-28 08:46:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:20,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:20,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:20,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384930555] [2021-10-28 08:46:20,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384930555] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:20,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987754584] [2021-10-28 08:46:20,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:46:20,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:20,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:20,991 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:20,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-10-28 08:46:24,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2021-10-28 08:46:24,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:24,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-28 08:46:24,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:24,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987754584] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:24,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:24,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-10-28 08:46:24,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135860358] [2021-10-28 08:46:24,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-10-28 08:46:24,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:24,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-10-28 08:46:24,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-10-28 08:46:24,954 INFO L87 Difference]: Start difference. First operand 3693 states and 4291 transitions. Second operand has 49 states, 48 states have (on average 5.833333333333333) internal successors, (280), 48 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:25,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:25,379 INFO L93 Difference]: Finished difference Result 7321 states and 8530 transitions. [2021-10-28 08:46:25,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-28 08:46:25,379 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 5.833333333333333) internal successors, (280), 48 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2021-10-28 08:46:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:25,386 INFO L225 Difference]: With dead ends: 7321 [2021-10-28 08:46:25,387 INFO L226 Difference]: Without dead ends: 7320 [2021-10-28 08:46:25,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-10-28 08:46:25,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2021-10-28 08:46:25,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 3780. [2021-10-28 08:46:25,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3780 states, 3778 states have (on average 1.1627845420857597) internal successors, (4393), 3779 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:25,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 4393 transitions. [2021-10-28 08:46:25,458 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 4393 transitions. Word has length 280 [2021-10-28 08:46:25,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:25,459 INFO L470 AbstractCegarLoop]: Abstraction has 3780 states and 4393 transitions. [2021-10-28 08:46:25,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 5.833333333333333) internal successors, (280), 48 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:25,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 4393 transitions. [2021-10-28 08:46:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-10-28 08:46:25,462 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:25,462 INFO L513 BasicCegarLoop]: trace histogram [47, 46, 46, 33, 33, 33, 14, 14, 14, 1, 1] [2021-10-28 08:46:25,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2021-10-28 08:46:25,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:25,663 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:46:25,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:25,663 INFO L85 PathProgramCache]: Analyzing trace with hash -724501282, now seen corresponding path program 24 times [2021-10-28 08:46:25,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:25,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104785486] [2021-10-28 08:46:25,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:25,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 1775 proven. 3234 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-10-28 08:46:26,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:26,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104785486] [2021-10-28 08:46:26,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104785486] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:26,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937861819] [2021-10-28 08:46:26,343 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:46:26,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:26,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:26,346 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:26,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-10-28 08:46:29,619 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 29 check-sat command(s) [2021-10-28 08:46:29,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:29,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 08:46:29,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 2045 proven. 619 refuted. 0 times theorem prover too weak. 2852 trivial. 0 not checked. [2021-10-28 08:46:30,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937861819] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:30,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:30,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 17] total 52 [2021-10-28 08:46:30,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005014206] [2021-10-28 08:46:30,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-10-28 08:46:30,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:30,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-10-28 08:46:30,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-28 08:46:30,694 INFO L87 Difference]: Start difference. First operand 3780 states and 4393 transitions. Second operand has 52 states, 52 states have (on average 5.9423076923076925) internal successors, (309), 52 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:30,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:30,971 INFO L93 Difference]: Finished difference Result 7805 states and 9165 transitions. [2021-10-28 08:46:30,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-28 08:46:30,972 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 5.9423076923076925) internal successors, (309), 52 states have internal predecessors, (309), 0 states have call successors, (0), 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 282 [2021-10-28 08:46:30,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:30,975 INFO L225 Difference]: With dead ends: 7805 [2021-10-28 08:46:30,975 INFO L226 Difference]: Without dead ends: 4220 [2021-10-28 08:46:30,979 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-28 08:46:30,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2021-10-28 08:46:31,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 4188. [2021-10-28 08:46:31,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4188 states, 4186 states have (on average 1.1624462494027712) internal successors, (4866), 4187 states have internal predecessors, (4866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:31,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4188 states to 4188 states and 4866 transitions. [2021-10-28 08:46:31,063 INFO L78 Accepts]: Start accepts. Automaton has 4188 states and 4866 transitions. Word has length 282 [2021-10-28 08:46:31,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:31,063 INFO L470 AbstractCegarLoop]: Abstraction has 4188 states and 4866 transitions. [2021-10-28 08:46:31,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 5.9423076923076925) internal successors, (309), 52 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:31,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4188 states and 4866 transitions. [2021-10-28 08:46:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-10-28 08:46:31,067 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:31,068 INFO L513 BasicCegarLoop]: trace histogram [48, 48, 47, 47, 47, 47, 1, 1] [2021-10-28 08:46:31,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:31,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-10-28 08:46:31,282 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:46:31,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:31,282 INFO L85 PathProgramCache]: Analyzing trace with hash 217650882, now seen corresponding path program 46 times [2021-10-28 08:46:31,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:31,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128602251] [2021-10-28 08:46:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:31,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 6627 backedges. 0 proven. 6627 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:32,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:32,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128602251] [2021-10-28 08:46:32,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128602251] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:32,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007527050] [2021-10-28 08:46:32,299 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:46:32,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:32,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:32,300 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:32,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-10-28 08:46:35,636 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:46:35,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:35,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-28 08:46:35,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 6627 backedges. 0 proven. 6627 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:36,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007527050] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:36,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:36,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-10-28 08:46:36,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78239535] [2021-10-28 08:46:36,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-10-28 08:46:36,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:36,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-10-28 08:46:36,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-28 08:46:36,467 INFO L87 Difference]: Start difference. First operand 4188 states and 4866 transitions. Second operand has 50 states, 49 states have (on average 5.836734693877551) internal successors, (286), 49 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:36,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:36,862 INFO L93 Difference]: Finished difference Result 8307 states and 9678 transitions. [2021-10-28 08:46:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-28 08:46:36,863 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 5.836734693877551) internal successors, (286), 49 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2021-10-28 08:46:36,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:36,870 INFO L225 Difference]: With dead ends: 8307 [2021-10-28 08:46:36,870 INFO L226 Difference]: Without dead ends: 8306 [2021-10-28 08:46:36,872 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-28 08:46:36,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8306 states. [2021-10-28 08:46:36,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8306 to 4287. [2021-10-28 08:46:36,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4285 states have (on average 1.1626604434072345) internal successors, (4982), 4286 states have internal predecessors, (4982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:36,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 4982 transitions. [2021-10-28 08:46:36,990 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 4982 transitions. Word has length 286 [2021-10-28 08:46:36,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:36,991 INFO L470 AbstractCegarLoop]: Abstraction has 4287 states and 4982 transitions. [2021-10-28 08:46:36,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 5.836734693877551) internal successors, (286), 49 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:36,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 4982 transitions. [2021-10-28 08:46:36,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-10-28 08:46:36,994 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:36,994 INFO L513 BasicCegarLoop]: trace histogram [49, 49, 48, 48, 48, 48, 1, 1] [2021-10-28 08:46:37,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2021-10-28 08:46:37,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-10-28 08:46:37,195 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:46:37,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:37,195 INFO L85 PathProgramCache]: Analyzing trace with hash -517120069, now seen corresponding path program 47 times [2021-10-28 08:46:37,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:37,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157575146] [2021-10-28 08:46:37,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:37,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:38,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6912 backedges. 0 proven. 6912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:38,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:38,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157575146] [2021-10-28 08:46:38,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157575146] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:38,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673428778] [2021-10-28 08:46:38,183 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:46:38,183 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:38,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:38,188 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:38,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-10-28 08:46:41,871 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 49 check-sat command(s) [2021-10-28 08:46:41,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:41,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-28 08:46:41,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:42,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6912 backedges. 0 proven. 6912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:42,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673428778] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:42,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:42,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-10-28 08:46:42,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543170118] [2021-10-28 08:46:42,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-10-28 08:46:42,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:42,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-10-28 08:46:42,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-28 08:46:42,700 INFO L87 Difference]: Start difference. First operand 4287 states and 4982 transitions. Second operand has 51 states, 50 states have (on average 5.84) internal successors, (292), 50 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:43,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:43,179 INFO L93 Difference]: Finished difference Result 8507 states and 9912 transitions. [2021-10-28 08:46:43,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-28 08:46:43,180 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 5.84) internal successors, (292), 50 states have internal predecessors, (292), 0 states have call successors, (0), 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 292 [2021-10-28 08:46:43,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:43,187 INFO L225 Difference]: With dead ends: 8507 [2021-10-28 08:46:43,187 INFO L226 Difference]: Without dead ends: 8506 [2021-10-28 08:46:43,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-28 08:46:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8506 states. [2021-10-28 08:46:43,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8506 to 4386. [2021-10-28 08:46:43,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 4384 states have (on average 1.1628649635036497) internal successors, (5098), 4385 states have internal predecessors, (5098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:43,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 5098 transitions. [2021-10-28 08:46:43,332 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 5098 transitions. Word has length 292 [2021-10-28 08:46:43,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:43,333 INFO L470 AbstractCegarLoop]: Abstraction has 4386 states and 5098 transitions. [2021-10-28 08:46:43,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 5.84) internal successors, (292), 50 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:43,333 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 5098 transitions. [2021-10-28 08:46:43,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-10-28 08:46:43,337 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:43,338 INFO L513 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 1, 1] [2021-10-28 08:46:43,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2021-10-28 08:46:43,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:43,554 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:46:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash -218412556, now seen corresponding path program 48 times [2021-10-28 08:46:43,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:43,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630963644] [2021-10-28 08:46:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:43,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 7203 backedges. 0 proven. 7203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:44,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:44,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630963644] [2021-10-28 08:46:44,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630963644] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:44,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108838954] [2021-10-28 08:46:44,731 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:46:44,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:44,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:44,732 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:44,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-10-28 08:46:48,705 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 50 check-sat command(s) [2021-10-28 08:46:48,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:46:48,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-28 08:46:48,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 7203 backedges. 0 proven. 7203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:49,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108838954] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:49,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:49,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-10-28 08:46:49,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171642136] [2021-10-28 08:46:49,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-10-28 08:46:49,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:49,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-10-28 08:46:49,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-28 08:46:49,480 INFO L87 Difference]: Start difference. First operand 4386 states and 5098 transitions. Second operand has 52 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 51 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:49,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:49,945 INFO L93 Difference]: Finished difference Result 8707 states and 10146 transitions. [2021-10-28 08:46:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-28 08:46:49,945 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 51 states have internal predecessors, (298), 0 states have call successors, (0), 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 298 [2021-10-28 08:46:49,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:49,954 INFO L225 Difference]: With dead ends: 8707 [2021-10-28 08:46:49,954 INFO L226 Difference]: Without dead ends: 8706 [2021-10-28 08:46:49,956 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-28 08:46:49,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8706 states. [2021-10-28 08:46:50,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8706 to 4485. [2021-10-28 08:46:50,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4485 states, 4483 states have (on average 1.163060450591122) internal successors, (5214), 4484 states have internal predecessors, (5214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:50,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4485 states to 4485 states and 5214 transitions. [2021-10-28 08:46:50,043 INFO L78 Accepts]: Start accepts. Automaton has 4485 states and 5214 transitions. Word has length 298 [2021-10-28 08:46:50,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:50,043 INFO L470 AbstractCegarLoop]: Abstraction has 4485 states and 5214 transitions. [2021-10-28 08:46:50,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 51 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:50,043 INFO L276 IsEmpty]: Start isEmpty. Operand 4485 states and 5214 transitions. [2021-10-28 08:46:50,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-10-28 08:46:50,046 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:50,047 INFO L513 BasicCegarLoop]: trace histogram [51, 51, 50, 50, 50, 50, 1, 1] [2021-10-28 08:46:50,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2021-10-28 08:46:50,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:50,247 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:46:50,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:50,248 INFO L85 PathProgramCache]: Analyzing trace with hash -260774547, now seen corresponding path program 49 times [2021-10-28 08:46:50,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:50,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895207894] [2021-10-28 08:46:50,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:50,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:51,456 INFO L134 CoverageAnalysis]: Checked inductivity of 7500 backedges. 0 proven. 7500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:51,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:51,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895207894] [2021-10-28 08:46:51,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895207894] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:51,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477915163] [2021-10-28 08:46:51,456 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:46:51,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:51,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:51,458 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:51,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-28 08:46:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:55,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-28 08:46:55,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:46:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 7500 backedges. 0 proven. 7500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:46:56,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477915163] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:56,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:46:56,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-10-28 08:46:56,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108340408] [2021-10-28 08:46:56,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-10-28 08:46:56,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:46:56,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-10-28 08:46:56,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-10-28 08:46:56,192 INFO L87 Difference]: Start difference. First operand 4485 states and 5214 transitions. Second operand has 53 states, 52 states have (on average 5.846153846153846) internal successors, (304), 52 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:56,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:46:56,713 INFO L93 Difference]: Finished difference Result 8907 states and 10380 transitions. [2021-10-28 08:46:56,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-10-28 08:46:56,713 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 5.846153846153846) internal successors, (304), 52 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2021-10-28 08:46:56,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:46:56,723 INFO L225 Difference]: With dead ends: 8907 [2021-10-28 08:46:56,723 INFO L226 Difference]: Without dead ends: 8906 [2021-10-28 08:46:56,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-10-28 08:46:56,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8906 states. [2021-10-28 08:46:56,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8906 to 4584. [2021-10-28 08:46:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4584 states, 4582 states have (on average 1.1632474901789611) internal successors, (5330), 4583 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:56,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 5330 transitions. [2021-10-28 08:46:56,822 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 5330 transitions. Word has length 304 [2021-10-28 08:46:56,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:46:56,822 INFO L470 AbstractCegarLoop]: Abstraction has 4584 states and 5330 transitions. [2021-10-28 08:46:56,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 5.846153846153846) internal successors, (304), 52 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:46:56,823 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 5330 transitions. [2021-10-28 08:46:56,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-10-28 08:46:56,826 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:46:56,826 INFO L513 BasicCegarLoop]: trace histogram [51, 50, 50, 35, 35, 35, 16, 16, 16, 1, 1] [2021-10-28 08:46:56,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-10-28 08:46:57,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-10-28 08:46:57,027 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:46:57,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:46:57,027 INFO L85 PathProgramCache]: Analyzing trace with hash 255768502, now seen corresponding path program 25 times [2021-10-28 08:46:57,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:46:57,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169957137] [2021-10-28 08:46:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:46:57,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:46:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:46:57,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 2165 proven. 3640 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-10-28 08:46:57,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:46:57,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169957137] [2021-10-28 08:46:57,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169957137] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:46:57,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813691251] [2021-10-28 08:46:57,664 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:46:57,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:46:57,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:46:57,666 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:46:57,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-10-28 08:47:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:01,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-28 08:47:01,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 2165 proven. 3640 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-10-28 08:47:02,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813691251] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:02,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:47:02,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-10-28 08:47:02,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809514314] [2021-10-28 08:47:02,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-28 08:47:02,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:47:02,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-28 08:47:02,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-28 08:47:02,157 INFO L87 Difference]: Start difference. First operand 4584 states and 5330 transitions. Second operand has 38 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 37 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:02,314 INFO L93 Difference]: Finished difference Result 8971 states and 10464 transitions. [2021-10-28 08:47:02,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-28 08:47:02,315 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 37 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2021-10-28 08:47:02,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:02,319 INFO L225 Difference]: With dead ends: 8971 [2021-10-28 08:47:02,319 INFO L226 Difference]: Without dead ends: 4594 [2021-10-28 08:47:02,323 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-28 08:47:02,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-10-28 08:47:02,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4590. [2021-10-28 08:47:02,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 4588 states have (on average 1.163034001743679) internal successors, (5336), 4589 states have internal predecessors, (5336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:02,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 5336 transitions. [2021-10-28 08:47:02,489 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 5336 transitions. Word has length 306 [2021-10-28 08:47:02,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:02,490 INFO L470 AbstractCegarLoop]: Abstraction has 4590 states and 5336 transitions. [2021-10-28 08:47:02,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.7894736842105265) internal successors, (220), 37 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:02,490 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 5336 transitions. [2021-10-28 08:47:02,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-10-28 08:47:02,493 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:02,493 INFO L513 BasicCegarLoop]: trace histogram [52, 52, 51, 51, 51, 51, 1, 1] [2021-10-28 08:47:02,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2021-10-28 08:47:02,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-10-28 08:47:02,694 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:47:02,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:02,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1780465114, now seen corresponding path program 50 times [2021-10-28 08:47:02,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:02,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467070402] [2021-10-28 08:47:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:02,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 7803 backedges. 0 proven. 7803 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:03,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:47:03,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467070402] [2021-10-28 08:47:03,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467070402] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:03,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597671848] [2021-10-28 08:47:03,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:47:03,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:03,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:03,835 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:47:03,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-10-28 08:47:07,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:47:07,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:47:07,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-28 08:47:07,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 7803 backedges. 0 proven. 7803 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:08,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597671848] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:08,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:47:08,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-10-28 08:47:08,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586722215] [2021-10-28 08:47:08,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-10-28 08:47:08,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:47:08,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-10-28 08:47:08,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-10-28 08:47:08,418 INFO L87 Difference]: Start difference. First operand 4590 states and 5336 transitions. Second operand has 54 states, 53 states have (on average 5.849056603773585) internal successors, (310), 53 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:08,922 INFO L93 Difference]: Finished difference Result 9113 states and 10620 transitions. [2021-10-28 08:47:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-28 08:47:08,923 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 5.849056603773585) internal successors, (310), 53 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-10-28 08:47:08,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:08,931 INFO L225 Difference]: With dead ends: 9113 [2021-10-28 08:47:08,931 INFO L226 Difference]: Without dead ends: 9112 [2021-10-28 08:47:08,933 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-10-28 08:47:08,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9112 states. [2021-10-28 08:47:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9112 to 4689. [2021-10-28 08:47:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4687 states have (on average 1.1632174098570514) internal successors, (5452), 4688 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:09,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 5452 transitions. [2021-10-28 08:47:09,018 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 5452 transitions. Word has length 310 [2021-10-28 08:47:09,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:09,018 INFO L470 AbstractCegarLoop]: Abstraction has 4689 states and 5452 transitions. [2021-10-28 08:47:09,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 5.849056603773585) internal successors, (310), 53 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:09,018 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 5452 transitions. [2021-10-28 08:47:09,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-10-28 08:47:09,022 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:09,022 INFO L513 BasicCegarLoop]: trace histogram [52, 51, 51, 36, 36, 36, 16, 16, 16, 1, 1] [2021-10-28 08:47:09,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:09,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:09,223 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:47:09,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:09,223 INFO L85 PathProgramCache]: Analyzing trace with hash 122014255, now seen corresponding path program 26 times [2021-10-28 08:47:09,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:09,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535136476] [2021-10-28 08:47:09,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:09,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6753 backedges. 2226 proven. 3852 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-10-28 08:47:09,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:47:09,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535136476] [2021-10-28 08:47:09,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535136476] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:09,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789999347] [2021-10-28 08:47:09,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:47:09,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:09,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:09,923 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:47:09,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-10-28 08:47:13,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:47:13,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:47:13,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 08:47:13,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:14,567 INFO L134 CoverageAnalysis]: Checked inductivity of 6753 backedges. 2226 proven. 3852 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-10-28 08:47:14,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789999347] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:14,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:47:14,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-10-28 08:47:14,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227594050] [2021-10-28 08:47:14,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-10-28 08:47:14,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:47:14,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-10-28 08:47:14,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 08:47:14,569 INFO L87 Difference]: Start difference. First operand 4689 states and 5452 transitions. Second operand has 39 states, 39 states have (on average 5.794871794871795) internal successors, (226), 38 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:14,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:14,714 INFO L93 Difference]: Finished difference Result 9175 states and 10702 transitions. [2021-10-28 08:47:14,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-28 08:47:14,714 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.794871794871795) internal successors, (226), 38 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2021-10-28 08:47:14,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:14,718 INFO L225 Difference]: With dead ends: 9175 [2021-10-28 08:47:14,718 INFO L226 Difference]: Without dead ends: 4699 [2021-10-28 08:47:14,723 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-28 08:47:14,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4699 states. [2021-10-28 08:47:14,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4699 to 4695. [2021-10-28 08:47:14,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4695 states, 4693 states have (on average 1.1630087364159387) internal successors, (5458), 4694 states have internal predecessors, (5458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:14,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4695 states to 4695 states and 5458 transitions. [2021-10-28 08:47:14,804 INFO L78 Accepts]: Start accepts. Automaton has 4695 states and 5458 transitions. Word has length 312 [2021-10-28 08:47:14,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:14,804 INFO L470 AbstractCegarLoop]: Abstraction has 4695 states and 5458 transitions. [2021-10-28 08:47:14,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.794871794871795) internal successors, (226), 38 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:14,804 INFO L276 IsEmpty]: Start isEmpty. Operand 4695 states and 5458 transitions. [2021-10-28 08:47:14,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-10-28 08:47:14,808 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:14,808 INFO L513 BasicCegarLoop]: trace histogram [53, 53, 52, 52, 52, 52, 1, 1] [2021-10-28 08:47:14,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:15,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:15,008 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:47:15,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:15,009 INFO L85 PathProgramCache]: Analyzing trace with hash 917991455, now seen corresponding path program 51 times [2021-10-28 08:47:15,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:15,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774912882] [2021-10-28 08:47:15,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:15,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 0 proven. 8112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:16,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:47:16,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774912882] [2021-10-28 08:47:16,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774912882] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:16,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003080714] [2021-10-28 08:47:16,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:47:16,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:16,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:16,187 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:47:16,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2021-10-28 08:47:20,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 53 check-sat command(s) [2021-10-28 08:47:20,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:47:20,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 54 conjunts are in the unsatisfiable core [2021-10-28 08:47:20,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 0 proven. 8112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:21,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003080714] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:21,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:47:21,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-10-28 08:47:21,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766014185] [2021-10-28 08:47:21,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-10-28 08:47:21,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:47:21,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-10-28 08:47:21,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-10-28 08:47:21,290 INFO L87 Difference]: Start difference. First operand 4695 states and 5458 transitions. Second operand has 55 states, 54 states have (on average 5.851851851851852) internal successors, (316), 54 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:21,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:21,879 INFO L93 Difference]: Finished difference Result 9319 states and 10860 transitions. [2021-10-28 08:47:21,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-28 08:47:21,880 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 5.851851851851852) internal successors, (316), 54 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 316 [2021-10-28 08:47:21,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:21,889 INFO L225 Difference]: With dead ends: 9319 [2021-10-28 08:47:21,889 INFO L226 Difference]: Without dead ends: 9318 [2021-10-28 08:47:21,891 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-10-28 08:47:21,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9318 states. [2021-10-28 08:47:21,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9318 to 4794. [2021-10-28 08:47:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4794 states, 4792 states have (on average 1.1631886477462436) internal successors, (5574), 4793 states have internal predecessors, (5574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:21,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4794 states to 4794 states and 5574 transitions. [2021-10-28 08:47:21,991 INFO L78 Accepts]: Start accepts. Automaton has 4794 states and 5574 transitions. Word has length 316 [2021-10-28 08:47:21,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:21,991 INFO L470 AbstractCegarLoop]: Abstraction has 4794 states and 5574 transitions. [2021-10-28 08:47:21,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 5.851851851851852) internal successors, (316), 54 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4794 states and 5574 transitions. [2021-10-28 08:47:21,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-10-28 08:47:21,995 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:21,995 INFO L513 BasicCegarLoop]: trace histogram [53, 52, 52, 37, 37, 37, 16, 16, 16, 1, 1] [2021-10-28 08:47:22,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2021-10-28 08:47:22,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:22,196 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:47:22,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:22,196 INFO L85 PathProgramCache]: Analyzing trace with hash -821469720, now seen corresponding path program 27 times [2021-10-28 08:47:22,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:22,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922014762] [2021-10-28 08:47:22,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:22,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 7032 backedges. 2287 proven. 4070 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-10-28 08:47:22,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:47:22,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922014762] [2021-10-28 08:47:22,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922014762] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:22,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929675485] [2021-10-28 08:47:22,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:47:22,888 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:22,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:22,889 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:47:22,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-10-28 08:47:27,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-10-28 08:47:27,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:47:27,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 08:47:27,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:28,434 INFO L134 CoverageAnalysis]: Checked inductivity of 7032 backedges. 2589 proven. 803 refuted. 0 times theorem prover too weak. 3640 trivial. 0 not checked. [2021-10-28 08:47:28,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929675485] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:28,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:47:28,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 19] total 58 [2021-10-28 08:47:28,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732064215] [2021-10-28 08:47:28,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-10-28 08:47:28,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:47:28,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-10-28 08:47:28,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-10-28 08:47:28,436 INFO L87 Difference]: Start difference. First operand 4794 states and 5574 transitions. Second operand has 58 states, 58 states have (on average 5.948275862068965) internal successors, (345), 58 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:28,784 INFO L93 Difference]: Finished difference Result 9861 states and 11571 transitions. [2021-10-28 08:47:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-10-28 08:47:28,784 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 5.948275862068965) internal successors, (345), 58 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 318 [2021-10-28 08:47:28,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:28,789 INFO L225 Difference]: With dead ends: 9861 [2021-10-28 08:47:28,789 INFO L226 Difference]: Without dead ends: 5286 [2021-10-28 08:47:28,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-10-28 08:47:28,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5286 states. [2021-10-28 08:47:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5286 to 5250. [2021-10-28 08:47:28,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5250 states, 5248 states have (on average 1.162919207317073) internal successors, (6103), 5249 states have internal predecessors, (6103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5250 states to 5250 states and 6103 transitions. [2021-10-28 08:47:28,901 INFO L78 Accepts]: Start accepts. Automaton has 5250 states and 6103 transitions. Word has length 318 [2021-10-28 08:47:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:28,902 INFO L470 AbstractCegarLoop]: Abstraction has 5250 states and 6103 transitions. [2021-10-28 08:47:28,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 5.948275862068965) internal successors, (345), 58 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:28,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5250 states and 6103 transitions. [2021-10-28 08:47:28,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-10-28 08:47:28,905 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:28,905 INFO L513 BasicCegarLoop]: trace histogram [54, 54, 53, 53, 53, 53, 1, 1] [2021-10-28 08:47:28,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2021-10-28 08:47:29,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:29,106 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:47:29,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:29,106 INFO L85 PathProgramCache]: Analyzing trace with hash -2035777704, now seen corresponding path program 52 times [2021-10-28 08:47:29,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:29,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504158773] [2021-10-28 08:47:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:29,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:30,365 INFO L134 CoverageAnalysis]: Checked inductivity of 8427 backedges. 0 proven. 8427 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:47:30,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:47:30,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504158773] [2021-10-28 08:47:30,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504158773] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:30,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803786597] [2021-10-28 08:47:30,365 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:47:30,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:30,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:30,366 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:47:30,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-10-28 08:47:34,507 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:47:34,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:47:34,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-28 08:47:34,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:38,072 INFO L134 CoverageAnalysis]: Checked inductivity of 8427 backedges. 8419 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-28 08:47:38,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803786597] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:47:38,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:47:38,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [54] total 107 [2021-10-28 08:47:38,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050985854] [2021-10-28 08:47:38,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-10-28 08:47:38,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:47:38,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-10-28 08:47:38,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2970, Invalid=8586, Unknown=0, NotChecked=0, Total=11556 [2021-10-28 08:47:38,074 INFO L87 Difference]: Start difference. First operand 5250 states and 6103 transitions. Second operand has 54 states, 54 states have (on average 5.851851851851852) internal successors, (316), 53 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:38,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:38,532 INFO L93 Difference]: Finished difference Result 6823 states and 7965 transitions. [2021-10-28 08:47:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-28 08:47:38,533 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 5.851851851851852) internal successors, (316), 53 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 322 [2021-10-28 08:47:38,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:38,535 INFO L225 Difference]: With dead ends: 6823 [2021-10-28 08:47:38,535 INFO L226 Difference]: Without dead ends: 1804 [2021-10-28 08:47:38,539 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2756 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2970, Invalid=8586, Unknown=0, NotChecked=0, Total=11556 [2021-10-28 08:47:38,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2021-10-28 08:47:38,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 415. [2021-10-28 08:47:38,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.0314009661835748) internal successors, (427), 414 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:38,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 427 transitions. [2021-10-28 08:47:38,556 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 427 transitions. Word has length 322 [2021-10-28 08:47:38,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:38,556 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 427 transitions. [2021-10-28 08:47:38,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 5.851851851851852) internal successors, (316), 53 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:38,556 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 427 transitions. [2021-10-28 08:47:38,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-10-28 08:47:38,559 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:38,559 INFO L513 BasicCegarLoop]: trace histogram [57, 56, 56, 39, 39, 39, 18, 18, 18, 1, 1] [2021-10-28 08:47:38,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:38,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:38,759 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:47:38,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:38,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1246320448, now seen corresponding path program 28 times [2021-10-28 08:47:38,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:38,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113994368] [2021-10-28 08:47:38,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:38,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 8116 backedges. 2725 proven. 4524 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-10-28 08:47:39,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:47:39,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113994368] [2021-10-28 08:47:39,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113994368] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:39,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009131665] [2021-10-28 08:47:39,538 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:47:39,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:39,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:39,539 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:47:39,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-10-28 08:47:44,412 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:47:44,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:47:44,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-28 08:47:44,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 8116 backedges. 2725 proven. 4524 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-10-28 08:47:45,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009131665] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:45,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:47:45,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-10-28 08:47:45,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813554722] [2021-10-28 08:47:45,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-28 08:47:45,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:47:45,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-28 08:47:45,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-28 08:47:45,336 INFO L87 Difference]: Start difference. First operand 415 states and 427 transitions. Second operand has 42 states, 42 states have (on average 5.809523809523809) internal successors, (244), 41 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:45,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:45,534 INFO L93 Difference]: Finished difference Result 521 states and 533 transitions. [2021-10-28 08:47:45,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-28 08:47:45,534 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 5.809523809523809) internal successors, (244), 41 states have internal predecessors, (244), 0 states have call successors, (0), 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 342 [2021-10-28 08:47:45,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:45,536 INFO L225 Difference]: With dead ends: 521 [2021-10-28 08:47:45,536 INFO L226 Difference]: Without dead ends: 415 [2021-10-28 08:47:45,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-28 08:47:45,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-10-28 08:47:45,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2021-10-28 08:47:45,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.0289855072463767) internal successors, (426), 414 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:45,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 426 transitions. [2021-10-28 08:47:45,550 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 426 transitions. Word has length 342 [2021-10-28 08:47:45,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:45,551 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 426 transitions. [2021-10-28 08:47:45,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 5.809523809523809) internal successors, (244), 41 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 426 transitions. [2021-10-28 08:47:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-10-28 08:47:45,554 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:45,554 INFO L513 BasicCegarLoop]: trace histogram [58, 57, 57, 40, 40, 40, 18, 18, 18, 1, 1] [2021-10-28 08:47:45,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2021-10-28 08:47:45,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:45,770 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:47:45,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:45,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1922059591, now seen corresponding path program 29 times [2021-10-28 08:47:45,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:45,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070963455] [2021-10-28 08:47:45,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:45,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:46,615 INFO L134 CoverageAnalysis]: Checked inductivity of 8421 backedges. 2794 proven. 4760 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-10-28 08:47:46,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:47:46,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070963455] [2021-10-28 08:47:46,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070963455] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:46,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695526191] [2021-10-28 08:47:46,616 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:47:46,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:46,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:46,619 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:47:46,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-28 08:47:51,465 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-10-28 08:47:51,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:47:51,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 08:47:51,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:47:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 8421 backedges. 2794 proven. 4760 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-10-28 08:47:52,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695526191] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:52,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:47:52,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-10-28 08:47:52,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636050852] [2021-10-28 08:47:52,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-28 08:47:52,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:47:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-28 08:47:52,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-28 08:47:52,565 INFO L87 Difference]: Start difference. First operand 415 states and 426 transitions. Second operand has 43 states, 43 states have (on average 5.813953488372093) internal successors, (250), 42 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:52,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:47:52,713 INFO L93 Difference]: Finished difference Result 521 states and 532 transitions. [2021-10-28 08:47:52,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-28 08:47:52,714 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 5.813953488372093) internal successors, (250), 42 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 348 [2021-10-28 08:47:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:47:52,715 INFO L225 Difference]: With dead ends: 521 [2021-10-28 08:47:52,715 INFO L226 Difference]: Without dead ends: 415 [2021-10-28 08:47:52,715 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-28 08:47:52,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-10-28 08:47:52,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2021-10-28 08:47:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.0265700483091786) internal successors, (425), 414 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:52,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 425 transitions. [2021-10-28 08:47:52,724 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 425 transitions. Word has length 348 [2021-10-28 08:47:52,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:47:52,725 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 425 transitions. [2021-10-28 08:47:52,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.813953488372093) internal successors, (250), 42 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:47:52,725 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 425 transitions. [2021-10-28 08:47:52,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-10-28 08:47:52,727 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:47:52,728 INFO L513 BasicCegarLoop]: trace histogram [59, 58, 58, 41, 41, 41, 18, 18, 18, 1, 1] [2021-10-28 08:47:52,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-10-28 08:47:52,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:52,928 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:47:52,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:47:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2106745358, now seen corresponding path program 30 times [2021-10-28 08:47:52,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:47:52,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797156307] [2021-10-28 08:47:52,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:47:52,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:47:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:47:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 8732 backedges. 2863 proven. 5002 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-10-28 08:47:53,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:47:53,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797156307] [2021-10-28 08:47:53,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797156307] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:47:53,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914247616] [2021-10-28 08:47:53,919 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:47:53,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:47:53,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:47:53,921 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:47:53,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-10-28 08:47:58,678 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-10-28 08:47:58,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:47:58,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 08:47:58,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:00,225 INFO L134 CoverageAnalysis]: Checked inductivity of 8732 backedges. 3197 proven. 1011 refuted. 0 times theorem prover too weak. 4524 trivial. 0 not checked. [2021-10-28 08:48:00,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914247616] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:00,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:48:00,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 21] total 64 [2021-10-28 08:48:00,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947452186] [2021-10-28 08:48:00,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-10-28 08:48:00,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:48:00,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-10-28 08:48:00,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-10-28 08:48:00,228 INFO L87 Difference]: Start difference. First operand 415 states and 425 transitions. Second operand has 64 states, 64 states have (on average 5.953125) internal successors, (381), 64 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:00,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:00,674 INFO L93 Difference]: Finished difference Result 534 states and 546 transitions. [2021-10-28 08:48:00,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-10-28 08:48:00,675 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 5.953125) internal successors, (381), 64 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 354 [2021-10-28 08:48:00,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:00,675 INFO L225 Difference]: With dead ends: 534 [2021-10-28 08:48:00,675 INFO L226 Difference]: Without dead ends: 428 [2021-10-28 08:48:00,676 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-10-28 08:48:00,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-10-28 08:48:00,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 427. [2021-10-28 08:48:00,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.0211267605633803) internal successors, (435), 426 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:00,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 435 transitions. [2021-10-28 08:48:00,684 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 435 transitions. Word has length 354 [2021-10-28 08:48:00,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:00,684 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 435 transitions. [2021-10-28 08:48:00,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 5.953125) internal successors, (381), 64 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:00,685 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 435 transitions. [2021-10-28 08:48:00,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-10-28 08:48:00,687 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:00,687 INFO L513 BasicCegarLoop]: trace histogram [63, 62, 62, 43, 43, 43, 20, 20, 20, 1, 1] [2021-10-28 08:48:00,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2021-10-28 08:48:00,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-10-28 08:48:00,887 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:48:00,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:00,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1988655306, now seen corresponding path program 31 times [2021-10-28 08:48:00,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:00,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940057422] [2021-10-28 08:48:00,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:00,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:01,853 INFO L134 CoverageAnalysis]: Checked inductivity of 9936 backedges. 3349 proven. 5504 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-10-28 08:48:01,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:48:01,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940057422] [2021-10-28 08:48:01,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940057422] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:01,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576358924] [2021-10-28 08:48:01,854 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:48:01,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:01,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:01,856 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:48:01,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-10-28 08:48:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:06,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-28 08:48:06,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:07,519 INFO L134 CoverageAnalysis]: Checked inductivity of 9936 backedges. 3349 proven. 5504 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-10-28 08:48:07,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576358924] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:07,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:48:07,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-10-28 08:48:07,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094115710] [2021-10-28 08:48:07,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-28 08:48:07,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:48:07,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-28 08:48:07,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 08:48:07,521 INFO L87 Difference]: Start difference. First operand 427 states and 435 transitions. Second operand has 46 states, 46 states have (on average 5.826086956521739) internal successors, (268), 45 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:07,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:07,690 INFO L93 Difference]: Finished difference Result 545 states and 553 transitions. [2021-10-28 08:48:07,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-28 08:48:07,691 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 5.826086956521739) internal successors, (268), 45 states have internal predecessors, (268), 0 states have call successors, (0), 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 378 [2021-10-28 08:48:07,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:07,691 INFO L225 Difference]: With dead ends: 545 [2021-10-28 08:48:07,692 INFO L226 Difference]: Without dead ends: 427 [2021-10-28 08:48:07,692 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-28 08:48:07,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-10-28 08:48:07,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2021-10-28 08:48:07,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.0187793427230047) internal successors, (434), 426 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 434 transitions. [2021-10-28 08:48:07,704 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 434 transitions. Word has length 378 [2021-10-28 08:48:07,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:07,704 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 434 transitions. [2021-10-28 08:48:07,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 5.826086956521739) internal successors, (268), 45 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:07,705 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 434 transitions. [2021-10-28 08:48:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-10-28 08:48:07,708 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:07,708 INFO L513 BasicCegarLoop]: trace histogram [64, 63, 63, 44, 44, 44, 20, 20, 20, 1, 1] [2021-10-28 08:48:07,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2021-10-28 08:48:07,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-10-28 08:48:07,928 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:48:07,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:07,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1435649469, now seen corresponding path program 32 times [2021-10-28 08:48:07,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:07,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390696038] [2021-10-28 08:48:07,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:07,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10273 backedges. 3426 proven. 5764 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-10-28 08:48:08,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:48:08,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390696038] [2021-10-28 08:48:08,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390696038] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:08,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735017839] [2021-10-28 08:48:08,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:48:08,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:08,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:08,916 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:48:08,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-10-28 08:48:13,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:48:13,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:48:13,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-28 08:48:13,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 10273 backedges. 3426 proven. 5764 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-10-28 08:48:14,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735017839] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:14,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:48:14,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-10-28 08:48:14,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974968692] [2021-10-28 08:48:14,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-10-28 08:48:14,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:48:14,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-10-28 08:48:14,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 08:48:14,751 INFO L87 Difference]: Start difference. First operand 427 states and 434 transitions. Second operand has 47 states, 47 states have (on average 5.829787234042553) internal successors, (274), 46 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) [2021-10-28 08:48:14,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:14,918 INFO L93 Difference]: Finished difference Result 545 states and 552 transitions. [2021-10-28 08:48:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-28 08:48:14,918 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 5.829787234042553) internal successors, (274), 46 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) Word has length 384 [2021-10-28 08:48:14,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:14,919 INFO L225 Difference]: With dead ends: 545 [2021-10-28 08:48:14,920 INFO L226 Difference]: Without dead ends: 427 [2021-10-28 08:48:14,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-28 08:48:14,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-10-28 08:48:14,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2021-10-28 08:48:14,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.016431924882629) internal successors, (433), 426 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:14,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 433 transitions. [2021-10-28 08:48:14,930 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 433 transitions. Word has length 384 [2021-10-28 08:48:14,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:14,930 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 433 transitions. [2021-10-28 08:48:14,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.829787234042553) internal successors, (274), 46 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) [2021-10-28 08:48:14,930 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 433 transitions. [2021-10-28 08:48:14,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-10-28 08:48:14,932 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:14,933 INFO L513 BasicCegarLoop]: trace histogram [65, 64, 64, 45, 45, 45, 20, 20, 20, 1, 1] [2021-10-28 08:48:14,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2021-10-28 08:48:15,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:15,133 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:48:15,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:15,133 INFO L85 PathProgramCache]: Analyzing trace with hash 342899964, now seen corresponding path program 33 times [2021-10-28 08:48:15,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:15,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555589821] [2021-10-28 08:48:15,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:15,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:16,240 INFO L134 CoverageAnalysis]: Checked inductivity of 10616 backedges. 3503 proven. 6030 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-10-28 08:48:16,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:48:16,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555589821] [2021-10-28 08:48:16,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555589821] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:16,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64972062] [2021-10-28 08:48:16,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:48:16,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:16,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:16,241 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:48:16,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-10-28 08:48:21,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2021-10-28 08:48:21,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:48:21,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 08:48:21,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 10616 backedges. 3869 proven. 1243 refuted. 0 times theorem prover too weak. 5504 trivial. 0 not checked. [2021-10-28 08:48:22,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64972062] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:22,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:48:22,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 23] total 70 [2021-10-28 08:48:22,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645507047] [2021-10-28 08:48:22,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-10-28 08:48:22,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:48:22,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-10-28 08:48:22,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-10-28 08:48:22,997 INFO L87 Difference]: Start difference. First operand 427 states and 433 transitions. Second operand has 70 states, 70 states have (on average 5.957142857142857) internal successors, (417), 70 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:23,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:23,443 INFO L93 Difference]: Finished difference Result 558 states and 566 transitions. [2021-10-28 08:48:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-10-28 08:48:23,443 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 5.957142857142857) internal successors, (417), 70 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2021-10-28 08:48:23,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:23,444 INFO L225 Difference]: With dead ends: 558 [2021-10-28 08:48:23,444 INFO L226 Difference]: Without dead ends: 440 [2021-10-28 08:48:23,445 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-10-28 08:48:23,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-10-28 08:48:23,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2021-10-28 08:48:23,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.0114155251141552) internal successors, (443), 438 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:23,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 443 transitions. [2021-10-28 08:48:23,458 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 443 transitions. Word has length 390 [2021-10-28 08:48:23,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:23,458 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 443 transitions. [2021-10-28 08:48:23,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 5.957142857142857) internal successors, (417), 70 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:23,458 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 443 transitions. [2021-10-28 08:48:23,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-10-28 08:48:23,460 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:23,461 INFO L513 BasicCegarLoop]: trace histogram [69, 68, 68, 47, 47, 47, 22, 22, 22, 1, 1] [2021-10-28 08:48:23,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:23,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:23,662 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:48:23,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:23,662 INFO L85 PathProgramCache]: Analyzing trace with hash 388409300, now seen corresponding path program 34 times [2021-10-28 08:48:23,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:23,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134751232] [2021-10-28 08:48:23,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:23,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:24,774 INFO L134 CoverageAnalysis]: Checked inductivity of 11940 backedges. 4037 proven. 6580 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-10-28 08:48:24,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:48:24,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134751232] [2021-10-28 08:48:24,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134751232] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:24,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653144480] [2021-10-28 08:48:24,774 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:48:24,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:24,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:24,775 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:48:24,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2021-10-28 08:48:29,964 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:48:29,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:48:29,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-28 08:48:29,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 11940 backedges. 4037 proven. 6580 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-10-28 08:48:31,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653144480] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:31,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:48:31,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-10-28 08:48:31,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185586263] [2021-10-28 08:48:31,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-10-28 08:48:31,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:48:31,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-10-28 08:48:31,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-28 08:48:31,012 INFO L87 Difference]: Start difference. First operand 439 states and 443 transitions. Second operand has 50 states, 50 states have (on average 5.84) internal successors, (292), 49 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:31,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:31,195 INFO L93 Difference]: Finished difference Result 569 states and 573 transitions. [2021-10-28 08:48:31,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-28 08:48:31,196 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.84) internal successors, (292), 49 states have internal predecessors, (292), 0 states have call successors, (0), 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 414 [2021-10-28 08:48:31,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:31,197 INFO L225 Difference]: With dead ends: 569 [2021-10-28 08:48:31,197 INFO L226 Difference]: Without dead ends: 439 [2021-10-28 08:48:31,197 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-28 08:48:31,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-10-28 08:48:31,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2021-10-28 08:48:31,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.0091324200913243) internal successors, (442), 438 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:31,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 442 transitions. [2021-10-28 08:48:31,205 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 442 transitions. Word has length 414 [2021-10-28 08:48:31,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:31,205 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 442 transitions. [2021-10-28 08:48:31,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.84) internal successors, (292), 49 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:31,206 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 442 transitions. [2021-10-28 08:48:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-10-28 08:48:31,208 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:31,208 INFO L513 BasicCegarLoop]: trace histogram [70, 69, 69, 48, 48, 48, 22, 22, 22, 1, 1] [2021-10-28 08:48:31,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:31,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable91 [2021-10-28 08:48:31,408 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:48:31,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:31,409 INFO L85 PathProgramCache]: Analyzing trace with hash -476946227, now seen corresponding path program 35 times [2021-10-28 08:48:31,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:31,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410183696] [2021-10-28 08:48:31,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:31,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:32,578 INFO L134 CoverageAnalysis]: Checked inductivity of 12309 backedges. 4122 proven. 6864 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-10-28 08:48:32,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:48:32,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410183696] [2021-10-28 08:48:32,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410183696] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:32,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937745251] [2021-10-28 08:48:32,579 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:48:32,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:32,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:32,580 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:48:32,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2021-10-28 08:48:38,180 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 50 check-sat command(s) [2021-10-28 08:48:38,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:48:38,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-28 08:48:38,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:39,343 INFO L134 CoverageAnalysis]: Checked inductivity of 12309 backedges. 4122 proven. 6864 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-10-28 08:48:39,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937745251] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:39,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:48:39,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-10-28 08:48:39,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014696734] [2021-10-28 08:48:39,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-10-28 08:48:39,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:48:39,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-10-28 08:48:39,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-28 08:48:39,345 INFO L87 Difference]: Start difference. First operand 439 states and 442 transitions. Second operand has 51 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 50 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:39,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:39,538 INFO L93 Difference]: Finished difference Result 569 states and 572 transitions. [2021-10-28 08:48:39,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-28 08:48:39,538 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 50 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 420 [2021-10-28 08:48:39,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:39,539 INFO L225 Difference]: With dead ends: 569 [2021-10-28 08:48:39,539 INFO L226 Difference]: Without dead ends: 439 [2021-10-28 08:48:39,540 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-28 08:48:39,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-10-28 08:48:39,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2021-10-28 08:48:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.0068493150684932) internal successors, (441), 438 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:39,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 441 transitions. [2021-10-28 08:48:39,554 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 441 transitions. Word has length 420 [2021-10-28 08:48:39,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:39,555 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 441 transitions. [2021-10-28 08:48:39,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.8431372549019605) internal successors, (298), 50 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:39,555 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 441 transitions. [2021-10-28 08:48:39,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-10-28 08:48:39,559 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:39,559 INFO L513 BasicCegarLoop]: trace histogram [71, 70, 70, 49, 49, 49, 22, 22, 22, 1, 1] [2021-10-28 08:48:39,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:39,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:39,770 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:48:39,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:39,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1648605958, now seen corresponding path program 36 times [2021-10-28 08:48:39,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:39,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313381925] [2021-10-28 08:48:39,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:39,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:41,056 INFO L134 CoverageAnalysis]: Checked inductivity of 12684 backedges. 4207 proven. 7154 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2021-10-28 08:48:41,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:48:41,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313381925] [2021-10-28 08:48:41,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313381925] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:41,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807137188] [2021-10-28 08:48:41,057 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:48:41,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:41,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:41,058 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:48:41,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-10-28 08:48:46,692 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 45 check-sat command(s) [2021-10-28 08:48:46,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:48:46,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 08:48:46,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:48,900 INFO L134 CoverageAnalysis]: Checked inductivity of 12684 backedges. 4605 proven. 1499 refuted. 0 times theorem prover too weak. 6580 trivial. 0 not checked. [2021-10-28 08:48:48,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807137188] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:48,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:48:48,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 25] total 76 [2021-10-28 08:48:48,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422619546] [2021-10-28 08:48:48,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2021-10-28 08:48:48,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:48:48,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-10-28 08:48:48,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2021-10-28 08:48:48,903 INFO L87 Difference]: Start difference. First operand 439 states and 441 transitions. Second operand has 76 states, 76 states have (on average 5.9605263157894735) internal successors, (453), 76 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:49,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:49,396 INFO L93 Difference]: Finished difference Result 582 states and 586 transitions. [2021-10-28 08:48:49,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-28 08:48:49,397 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 5.9605263157894735) internal successors, (453), 76 states have internal predecessors, (453), 0 states have call successors, (0), 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 426 [2021-10-28 08:48:49,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:49,398 INFO L225 Difference]: With dead ends: 582 [2021-10-28 08:48:49,398 INFO L226 Difference]: Without dead ends: 452 [2021-10-28 08:48:49,398 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2021-10-28 08:48:49,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-10-28 08:48:49,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 451. [2021-10-28 08:48:49,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 1.0022222222222221) internal successors, (451), 450 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 451 transitions. [2021-10-28 08:48:49,408 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 451 transitions. Word has length 426 [2021-10-28 08:48:49,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:49,408 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 451 transitions. [2021-10-28 08:48:49,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 5.9605263157894735) internal successors, (453), 76 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:49,409 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 451 transitions. [2021-10-28 08:48:49,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-10-28 08:48:49,470 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:49,470 INFO L513 BasicCegarLoop]: trace histogram [75, 74, 74, 51, 51, 51, 24, 24, 24, 1, 1] [2021-10-28 08:48:49,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:49,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:49,671 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:48:49,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:49,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1799113250, now seen corresponding path program 37 times [2021-10-28 08:48:49,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:49,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582218260] [2021-10-28 08:48:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:49,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:52,195 INFO L134 CoverageAnalysis]: Checked inductivity of 14128 backedges. 0 proven. 14128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:52,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:48:52,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582218260] [2021-10-28 08:48:52,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582218260] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:52,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277622377] [2021-10-28 08:48:52,196 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:48:52,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:52,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:52,197 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:48:52,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2021-10-28 08:48:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:57,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 76 conjunts are in the unsatisfiable core [2021-10-28 08:48:57,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:48:59,232 INFO L134 CoverageAnalysis]: Checked inductivity of 14128 backedges. 0 proven. 14128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:59,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277622377] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:48:59,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:48:59,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 75 [2021-10-28 08:48:59,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483197337] [2021-10-28 08:48:59,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2021-10-28 08:48:59,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:48:59,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-10-28 08:48:59,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2021-10-28 08:48:59,235 INFO L87 Difference]: Start difference. First operand 451 states and 451 transitions. Second operand has 77 states, 76 states have (on average 5.921052631578948) internal successors, (450), 76 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:59,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:59,668 INFO L93 Difference]: Finished difference Result 459 states and 459 transitions. [2021-10-28 08:48:59,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-10-28 08:48:59,668 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 76 states have (on average 5.921052631578948) internal successors, (450), 76 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 450 [2021-10-28 08:48:59,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:59,669 INFO L225 Difference]: With dead ends: 459 [2021-10-28 08:48:59,669 INFO L226 Difference]: Without dead ends: 458 [2021-10-28 08:48:59,670 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2021-10-28 08:48:59,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-10-28 08:48:59,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 457. [2021-10-28 08:48:59,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 456 states have (on average 1.0021929824561404) internal successors, (457), 456 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:59,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 457 transitions. [2021-10-28 08:48:59,680 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 457 transitions. Word has length 450 [2021-10-28 08:48:59,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:59,680 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 457 transitions. [2021-10-28 08:48:59,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 76 states have (on average 5.921052631578948) internal successors, (450), 76 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:48:59,681 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 457 transitions. [2021-10-28 08:48:59,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2021-10-28 08:48:59,683 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:59,683 INFO L513 BasicCegarLoop]: trace histogram [76, 75, 75, 51, 51, 51, 25, 25, 25, 1, 1] [2021-10-28 08:48:59,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2021-10-28 08:48:59,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2021-10-28 08:48:59,884 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:48:59,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:59,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1017961519, now seen corresponding path program 38 times [2021-10-28 08:48:59,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:59,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050421875] [2021-10-28 08:48:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:59,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 14475 backedges. 0 proven. 14475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:02,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:49:02,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050421875] [2021-10-28 08:49:02,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050421875] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:49:02,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752924489] [2021-10-28 08:49:02,463 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:49:02,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:49:02,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:02,464 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:49:02,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2021-10-28 08:49:07,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:49:07,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:49:07,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 763 conjuncts, 77 conjunts are in the unsatisfiable core [2021-10-28 08:49:07,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:09,288 INFO L134 CoverageAnalysis]: Checked inductivity of 14475 backedges. 0 proven. 14475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:09,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752924489] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:49:09,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:49:09,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 76 [2021-10-28 08:49:09,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342838967] [2021-10-28 08:49:09,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-10-28 08:49:09,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:49:09,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-10-28 08:49:09,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2021-10-28 08:49:09,291 INFO L87 Difference]: Start difference. First operand 457 states and 457 transitions. Second operand has 78 states, 77 states have (on average 5.922077922077922) internal successors, (456), 77 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:49:09,696 INFO L93 Difference]: Finished difference Result 465 states and 465 transitions. [2021-10-28 08:49:09,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-10-28 08:49:09,697 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 77 states have (on average 5.922077922077922) internal successors, (456), 77 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 456 [2021-10-28 08:49:09,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:49:09,698 INFO L225 Difference]: With dead ends: 465 [2021-10-28 08:49:09,698 INFO L226 Difference]: Without dead ends: 464 [2021-10-28 08:49:09,699 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2021-10-28 08:49:09,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-10-28 08:49:09,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 463. [2021-10-28 08:49:09,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.0021645021645023) internal successors, (463), 462 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:09,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 463 transitions. [2021-10-28 08:49:09,710 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 463 transitions. Word has length 456 [2021-10-28 08:49:09,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:49:09,710 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 463 transitions. [2021-10-28 08:49:09,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 77 states have (on average 5.922077922077922) internal successors, (456), 77 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:09,710 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 463 transitions. [2021-10-28 08:49:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-10-28 08:49:09,713 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:49:09,713 INFO L513 BasicCegarLoop]: trace histogram [77, 76, 76, 51, 51, 51, 26, 26, 26, 1, 1] [2021-10-28 08:49:09,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:09,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:49:09,914 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:49:09,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:09,914 INFO L85 PathProgramCache]: Analyzing trace with hash -932769916, now seen corresponding path program 39 times [2021-10-28 08:49:09,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:09,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650602086] [2021-10-28 08:49:09,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:09,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:12,569 INFO L134 CoverageAnalysis]: Checked inductivity of 14828 backedges. 0 proven. 14828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:12,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:49:12,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650602086] [2021-10-28 08:49:12,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650602086] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:49:12,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397350392] [2021-10-28 08:49:12,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:49:12,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:49:12,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:12,570 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:49:12,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-10-28 08:49:18,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2021-10-28 08:49:18,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:49:18,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-28 08:49:18,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 14828 backedges. 5402 proven. 1976 refuted. 0 times theorem prover too weak. 7450 trivial. 0 not checked. [2021-10-28 08:49:19,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397350392] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:49:19,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:49:19,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 28] total 78 [2021-10-28 08:49:19,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776948531] [2021-10-28 08:49:19,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-10-28 08:49:19,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:49:19,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-10-28 08:49:19,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2021-10-28 08:49:19,362 INFO L87 Difference]: Start difference. First operand 463 states and 463 transitions. Second operand has 79 states, 78 states have (on average 6.0256410256410255) internal successors, (470), 79 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:19,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:49:19,816 INFO L93 Difference]: Finished difference Result 471 states and 471 transitions. [2021-10-28 08:49:19,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-28 08:49:19,816 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 6.0256410256410255) internal successors, (470), 79 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 462 [2021-10-28 08:49:19,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:49:19,817 INFO L225 Difference]: With dead ends: 471 [2021-10-28 08:49:19,817 INFO L226 Difference]: Without dead ends: 470 [2021-10-28 08:49:19,817 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2021-10-28 08:49:19,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-10-28 08:49:19,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2021-10-28 08:49:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 1.0021367521367521) internal successors, (469), 468 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:19,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 469 transitions. [2021-10-28 08:49:19,829 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 469 transitions. Word has length 462 [2021-10-28 08:49:19,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:49:19,829 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 469 transitions. [2021-10-28 08:49:19,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 6.0256410256410255) internal successors, (470), 79 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:19,830 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 469 transitions. [2021-10-28 08:49:19,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2021-10-28 08:49:19,833 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:49:19,834 INFO L513 BasicCegarLoop]: trace histogram [78, 77, 77, 51, 51, 51, 27, 27, 27, 1, 1] [2021-10-28 08:49:19,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:20,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2021-10-28 08:49:20,049 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:49:20,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:20,050 INFO L85 PathProgramCache]: Analyzing trace with hash -929421065, now seen corresponding path program 40 times [2021-10-28 08:49:20,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:20,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893959896] [2021-10-28 08:49:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:20,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 15187 backedges. 0 proven. 15187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:22,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:49:22,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893959896] [2021-10-28 08:49:22,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893959896] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:49:22,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532790454] [2021-10-28 08:49:22,683 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 08:49:22,683 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:49:22,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:22,684 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:49:22,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-10-28 08:49:28,453 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 08:49:28,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:49:28,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 79 conjunts are in the unsatisfiable core [2021-10-28 08:49:28,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:30,004 INFO L134 CoverageAnalysis]: Checked inductivity of 15187 backedges. 0 proven. 15187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:30,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532790454] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:49:30,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:49:30,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 78 [2021-10-28 08:49:30,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740669542] [2021-10-28 08:49:30,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2021-10-28 08:49:30,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:49:30,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-10-28 08:49:30,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2021-10-28 08:49:30,007 INFO L87 Difference]: Start difference. First operand 469 states and 469 transitions. Second operand has 80 states, 79 states have (on average 5.924050632911392) internal successors, (468), 79 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:30,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:49:30,470 INFO L93 Difference]: Finished difference Result 477 states and 477 transitions. [2021-10-28 08:49:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-10-28 08:49:30,470 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 5.924050632911392) internal successors, (468), 79 states have internal predecessors, (468), 0 states have call successors, (0), 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 468 [2021-10-28 08:49:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:49:30,471 INFO L225 Difference]: With dead ends: 477 [2021-10-28 08:49:30,471 INFO L226 Difference]: Without dead ends: 476 [2021-10-28 08:49:30,472 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2021-10-28 08:49:30,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-10-28 08:49:30,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 475. [2021-10-28 08:49:30,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.0021097046413503) internal successors, (475), 474 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:30,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 475 transitions. [2021-10-28 08:49:30,481 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 475 transitions. Word has length 468 [2021-10-28 08:49:30,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:49:30,481 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 475 transitions. [2021-10-28 08:49:30,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 5.924050632911392) internal successors, (468), 79 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:30,481 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 475 transitions. [2021-10-28 08:49:30,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-10-28 08:49:30,484 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:49:30,484 INFO L513 BasicCegarLoop]: trace histogram [79, 78, 78, 51, 51, 51, 28, 28, 28, 1, 1] [2021-10-28 08:49:30,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:30,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2021-10-28 08:49:30,685 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:49:30,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:30,685 INFO L85 PathProgramCache]: Analyzing trace with hash -708632534, now seen corresponding path program 41 times [2021-10-28 08:49:30,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:30,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610635780] [2021-10-28 08:49:30,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:30,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 15552 backedges. 0 proven. 15552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:33,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:49:33,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610635780] [2021-10-28 08:49:33,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610635780] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:49:33,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163569815] [2021-10-28 08:49:33,556 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:49:33,557 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:49:33,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:33,557 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:49:33,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-10-28 08:49:40,135 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 53 check-sat command(s) [2021-10-28 08:49:40,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:49:40,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 72 conjunts are in the unsatisfiable core [2021-10-28 08:49:40,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:44,772 INFO L134 CoverageAnalysis]: Checked inductivity of 15552 backedges. 3076 proven. 12292 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-10-28 08:49:44,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163569815] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:49:44,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:49:44,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 72] total 122 [2021-10-28 08:49:44,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059883487] [2021-10-28 08:49:44,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2021-10-28 08:49:44,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:49:44,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2021-10-28 08:49:44,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2021-10-28 08:49:44,777 INFO L87 Difference]: Start difference. First operand 475 states and 475 transitions. Second operand has 123 states, 122 states have (on average 6.713114754098361) internal successors, (819), 123 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:45,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:49:45,676 INFO L93 Difference]: Finished difference Result 735 states and 777 transitions. [2021-10-28 08:49:45,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2021-10-28 08:49:45,676 INFO L78 Accepts]: Start accepts. Automaton has has 123 states, 122 states have (on average 6.713114754098361) internal successors, (819), 123 states have internal predecessors, (819), 0 states have call successors, (0), 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 474 [2021-10-28 08:49:45,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:49:45,677 INFO L225 Difference]: With dead ends: 735 [2021-10-28 08:49:45,677 INFO L226 Difference]: Without dead ends: 734 [2021-10-28 08:49:45,678 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2021-10-28 08:49:45,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2021-10-28 08:49:45,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 733. [2021-10-28 08:49:45,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 1.0013661202185793) internal successors, (733), 732 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:45,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 733 transitions. [2021-10-28 08:49:45,701 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 733 transitions. Word has length 474 [2021-10-28 08:49:45,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:49:45,702 INFO L470 AbstractCegarLoop]: Abstraction has 733 states and 733 transitions. [2021-10-28 08:49:45,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 122 states have (on average 6.713114754098361) internal successors, (819), 123 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:45,702 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 733 transitions. [2021-10-28 08:49:45,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2021-10-28 08:49:45,708 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:49:45,708 INFO L513 BasicCegarLoop]: trace histogram [122, 121, 121, 71, 71, 71, 51, 51, 51, 1, 1] [2021-10-28 08:49:45,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2021-10-28 08:49:45,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:49:45,910 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-28 08:49:45,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:45,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1229081285, now seen corresponding path program 42 times [2021-10-28 08:49:45,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:45,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159673002] [2021-10-28 08:49:45,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:45,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:52,051 INFO L134 CoverageAnalysis]: Checked inductivity of 36923 backedges. 0 proven. 36923 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:52,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:49:52,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159673002] [2021-10-28 08:49:52,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159673002] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:49:52,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871185684] [2021-10-28 08:49:52,052 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 08:49:52,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:49:52,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:52,058 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:49:52,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-28 08:49:58,694 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 72 check-sat command(s) [2021-10-28 08:49:58,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:49:58,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1223 conjuncts, 123 conjunts are in the unsatisfiable core [2021-10-28 08:49:58,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:50:05,363 INFO L134 CoverageAnalysis]: Checked inductivity of 36923 backedges. 23969 proven. 12752 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-10-28 08:50:05,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871185684] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:50:05,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:50:05,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 72] total 194 [2021-10-28 08:50:05,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356598168] [2021-10-28 08:50:05,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 195 states [2021-10-28 08:50:05,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:50:05,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 195 interpolants. [2021-10-28 08:50:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10253, Invalid=27577, Unknown=0, NotChecked=0, Total=37830 [2021-10-28 08:50:05,371 INFO L87 Difference]: Start difference. First operand 733 states and 733 transitions. Second operand has 195 states, 195 states have (on average 6.733333333333333) internal successors, (1313), 194 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:50:19,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:50:19,890 INFO L93 Difference]: Finished difference Result 733 states and 733 transitions. [2021-10-28 08:50:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2021-10-28 08:50:19,891 INFO L78 Accepts]: Start accepts. Automaton has has 195 states, 195 states have (on average 6.733333333333333) internal successors, (1313), 194 states have internal predecessors, (1313), 0 states have call successors, (0), 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 732 [2021-10-28 08:50:19,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:50:19,891 INFO L225 Difference]: With dead ends: 733 [2021-10-28 08:50:19,891 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:50:19,901 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1060 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 400 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35724 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=41435, Invalid=119767, Unknown=0, NotChecked=0, Total=161202 [2021-10-28 08:50:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:50:19,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:50:19,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:50:19,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:50:19,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 732 [2021-10-28 08:50:19,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:50:19,902 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:50:19,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 195 states, 195 states have (on average 6.733333333333333) internal successors, (1313), 194 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:50:19,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:50:19,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:50:19,907 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:50:19,907 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:50:19,908 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:50:19,908 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:50:19,908 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:50:19,908 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 08:50:19,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2021-10-28 08:50:20,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:50:20,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:50:20,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:50:21,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:50:25,021 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-10-28 08:50:25,021 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:50:25,021 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-28 08:50:25,022 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-28 08:50:25,022 INFO L857 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2021-10-28 08:50:25,022 INFO L857 garLoopResultBuilder]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2021-10-28 08:50:25,022 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-10-28 08:50:25,022 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-28 08:50:25,022 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:50:25,022 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-28 08:50:25,022 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:50:25,022 INFO L860 garLoopResultBuilder]: At program point L26(lines 14 27) the Hoare annotation is: true [2021-10-28 08:50:25,023 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-28 08:50:25,023 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-28 08:50:25,023 INFO L857 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-10-28 08:50:25,023 INFO L857 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-10-28 08:50:25,023 INFO L857 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-10-28 08:50:25,024 INFO L853 garLoopResultBuilder]: At program point L18-2(lines 18 25) the Hoare annotation is: (let ((.cse7 (<= ULTIMATE.start_main_~y~0 21)) (.cse4 (<= ULTIMATE.start_main_~y~0 32)) (.cse28 (<= ULTIMATE.start_main_~y~0 15)) (.cse36 (<= ULTIMATE.start_main_~y~0 8)) (.cse34 (<= ULTIMATE.start_main_~y~0 42)) (.cse37 (<= ULTIMATE.start_main_~y~0 40)) (.cse21 (<= ULTIMATE.start_main_~y~0 46)) (.cse12 (<= ULTIMATE.start_main_~y~0 7)) (.cse31 (<= ULTIMATE.start_main_~y~0 43)) (.cse27 (<= ULTIMATE.start_main_~y~0 20)) (.cse10 (<= ULTIMATE.start_main_~y~0 31)) (.cse35 (<= ULTIMATE.start_main_~y~0 36)) (.cse18 (<= ULTIMATE.start_main_~y~0 28)) (.cse40 (<= ULTIMATE.start_main_~y~0 18)) (.cse8 (<= ULTIMATE.start_main_~y~0 45)) (.cse17 (<= ULTIMATE.start_main_~y~0 10)) (.cse30 (<= ULTIMATE.start_main_~y~0 22)) (.cse43 (<= ULTIMATE.start_main_~y~0 3)) (.cse44 (<= ULTIMATE.start_main_~y~0 23)) (.cse6 (<= ULTIMATE.start_main_~y~0 27)) (.cse19 (<= ULTIMATE.start_main_~y~0 0)) (.cse45 (<= ULTIMATE.start_main_~y~0 26)) (.cse0 (<= ULTIMATE.start_main_~y~0 9)) (.cse15 (<= ULTIMATE.start_main_~y~0 24)) (.cse16 (<= ULTIMATE.start_main_~y~0 17)) (.cse9 (<= ULTIMATE.start_main_~y~0 30)) (.cse20 (<= ULTIMATE.start_main_~y~0 13)) (.cse14 (<= ULTIMATE.start_main_~y~0 37)) (.cse29 (<= ULTIMATE.start_main_~y~0 33)) (.cse39 (<= ULTIMATE.start_main_~y~0 38)) (.cse42 (<= ULTIMATE.start_main_~y~0 44)) (.cse41 (<= ULTIMATE.start_main_~y~0 14)) (.cse33 (<= ULTIMATE.start_main_~y~0 4)) (.cse11 (<= ULTIMATE.start_main_~y~0 11)) (.cse46 (<= ULTIMATE.start_main_~y~0 48)) (.cse32 (<= ULTIMATE.start_main_~y~0 39)) (.cse38 (<= ULTIMATE.start_main_~y~0 19)) (.cse13 (<= ULTIMATE.start_main_~y~0 6)) (.cse26 (<= ULTIMATE.start_main_~y~0 2)) (.cse47 (<= ULTIMATE.start_main_~y~0 1)) (.cse22 (<= ULTIMATE.start_main_~y~0 25)) (.cse48 (<= ULTIMATE.start_main_~y~0 12)) (.cse23 (<= ULTIMATE.start_main_~y~0 41)) (.cse50 (<= ULTIMATE.start_main_~y~0 50)) (.cse51 (<= ULTIMATE.start_main_~y~0 29)) (.cse49 (<= ULTIMATE.start_main_~y~0 5)) (.cse2 (<= ULTIMATE.start_main_~y~0 49)) (.cse5 (<= ULTIMATE.start_main_~y~0 34)) (.cse25 (<= ULTIMATE.start_main_~y~0 35)) (.cse3 (<= 51 ULTIMATE.start_main_~x~0)) (.cse52 (<= ULTIMATE.start_main_~y~0 16)) (.cse24 (<= ULTIMATE.start_main_~y~0 47)) (.cse1 (<= ULTIMATE.start_main_~x~0 51))) (or (and .cse0 .cse1 (<= 9 ULTIMATE.start_main_~x~0)) (and .cse2 (<= ULTIMATE.start_main_~x~0 53) .cse3) (and (<= 32 ULTIMATE.start_main_~x~0) .cse1 .cse4) (and .cse5 .cse6 .cse3 (<= ULTIMATE.start_main_~x~0 75)) (and .cse5 .cse7 (<= ULTIMATE.start_main_~x~0 81) .cse3) (and .cse8 (<= ULTIMATE.start_main_~x~0 57) .cse3) (and (<= 30 ULTIMATE.start_main_~x~0) .cse9 .cse1) (and (<= 21 ULTIMATE.start_main_~x~0) .cse7 .cse1) (and (<= 31 ULTIMATE.start_main_~x~0) .cse10 .cse1) (and (<= ULTIMATE.start_main_~x~0 91) .cse5 .cse3 .cse11) (and .cse12 .cse1 (<= 7 ULTIMATE.start_main_~x~0)) (and .cse13 .cse5 (<= ULTIMATE.start_main_~x~0 96) .cse3) (and .cse14 (<= 37 ULTIMATE.start_main_~x~0) .cse1) (and .cse15 .cse5 (<= ULTIMATE.start_main_~x~0 78) .cse3) (and .cse5 (<= ULTIMATE.start_main_~x~0 70) .cse3 .cse4) (and .cse16 (<= ULTIMATE.start_main_~x~0 85) .cse5 .cse3) (and .cse5 (<= ULTIMATE.start_main_~x~0 92) .cse3 .cse17) (and .cse5 (<= ULTIMATE.start_main_~x~0 74) .cse3 .cse18) (and .cse5 (<= (+ ULTIMATE.start_main_~y~0 1) 0) (<= ULTIMATE.start_main_~x~0 103) .cse3) (and .cse5 .cse19 .cse3 (<= ULTIMATE.start_main_~x~0 102)) (and .cse20 .cse5 .cse3 (<= ULTIMATE.start_main_~x~0 89)) (and .cse21 (<= 46 ULTIMATE.start_main_~x~0) .cse1) (and (<= 25 ULTIMATE.start_main_~x~0) .cse22 (<= ULTIMATE.start_main_~x~0 25)) (and (<= 41 ULTIMATE.start_main_~x~0) .cse23 .cse1) (and (<= ULTIMATE.start_main_~x~0 55) .cse24 .cse3) (and .cse25 (<= 35 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 35)) (and .cse5 .cse26 .cse3 (<= ULTIMATE.start_main_~x~0 100)) (and (<= 20 ULTIMATE.start_main_~x~0) .cse27 .cse1) (and .cse28 .cse5 (<= ULTIMATE.start_main_~x~0 87) .cse3) (and .cse5 (<= 34 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 34)) (and .cse5 .cse29 (<= ULTIMATE.start_main_~x~0 69) .cse3) (and (<= ULTIMATE.start_main_~x~0 80) .cse5 .cse30 .cse3) (and .cse31 .cse1 (<= 43 ULTIMATE.start_main_~x~0)) (and .cse28 (<= 15 ULTIMATE.start_main_~x~0) .cse1) (and (<= ULTIMATE.start_main_~x~0 63) .cse32 .cse3) (and (<= 4 ULTIMATE.start_main_~x~0) .cse33 .cse1) (and .cse34 .cse1 (<= 42 ULTIMATE.start_main_~x~0)) (and .cse35 .cse1 (<= 36 ULTIMATE.start_main_~x~0)) (and .cse5 (<= ULTIMATE.start_main_~x~0 94) .cse3 .cse36) (and (<= 8 ULTIMATE.start_main_~x~0) .cse1 .cse36) (and .cse37 (<= ULTIMATE.start_main_~x~0 62) .cse3) (and .cse34 (<= ULTIMATE.start_main_~x~0 60) .cse3) (and .cse37 (<= ULTIMATE.start_main_~x~0 40) (<= 40 ULTIMATE.start_main_~x~0)) (and .cse21 (<= ULTIMATE.start_main_~x~0 56) .cse3) (and .cse5 (<= ULTIMATE.start_main_~x~0 83) .cse3 .cse38) (and .cse5 .cse3 (<= ULTIMATE.start_main_~x~0 68)) (and (<= ULTIMATE.start_main_~x~0 64) .cse39 .cse3) (and (<= 18 ULTIMATE.start_main_~x~0) .cse40 .cse1) (and .cse41 .cse1 (<= 14 ULTIMATE.start_main_~x~0)) (and .cse5 .cse12 .cse3 (<= ULTIMATE.start_main_~x~0 95)) (and .cse31 (<= ULTIMATE.start_main_~x~0 59) .cse3) (and (<= ULTIMATE.start_main_~x~0 82) .cse5 .cse27 .cse3) (and .cse5 .cse10 (<= ULTIMATE.start_main_~x~0 71) .cse3) (and (<= ULTIMATE.start_main_~x~0 66) .cse35 .cse3) (and .cse42 (<= 44 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 44)) (and (<= ULTIMATE.start_main_~x~0 99) .cse5 .cse43 .cse3) (and (<= 28 ULTIMATE.start_main_~x~0) .cse1 .cse18) (and .cse5 .cse44 .cse3 (<= ULTIMATE.start_main_~x~0 79)) (and .cse5 .cse40 .cse3 (<= ULTIMATE.start_main_~x~0 84)) (and .cse8 (<= 45 ULTIMATE.start_main_~x~0) .cse1) (and (<= 10 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 10) .cse17) (and .cse30 (<= 22 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 22)) (and .cse5 .cse3 (<= ULTIMATE.start_main_~x~0 76) .cse45) (and .cse3 (<= ULTIMATE.start_main_~x~0 54) .cse46) (and (<= ULTIMATE.start_main_~x~0 3) .cse43 (<= 3 ULTIMATE.start_main_~x~0)) (and (<= 23 ULTIMATE.start_main_~x~0) .cse44 .cse1) (and (<= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~x~0) .cse47) (and .cse48 .cse1 (<= 12 ULTIMATE.start_main_~x~0)) (and .cse6 (<= 27 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 27)) (and (<= ULTIMATE.start_main_~x~0 0) .cse19 (<= 0 ULTIMATE.start_main_~y~0) (<= 0 ULTIMATE.start_main_~x~0)) (and (<= 26 ULTIMATE.start_main_~x~0) .cse1 .cse45) (and .cse1 .cse3 (<= ULTIMATE.start_main_~y~0 51)) (and .cse5 (<= ULTIMATE.start_main_~x~0 93) .cse0 .cse3) (and .cse15 (<= 24 ULTIMATE.start_main_~x~0) .cse1) (and .cse16 (<= 17 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 17)) (and .cse5 .cse9 (<= ULTIMATE.start_main_~x~0 72) .cse3) (and .cse20 (<= 13 ULTIMATE.start_main_~x~0) .cse1) (and .cse14 (<= ULTIMATE.start_main_~x~0 65) .cse3) (and .cse29 (<= 33 ULTIMATE.start_main_~x~0) .cse1) (and (<= 38 ULTIMATE.start_main_~x~0) .cse1 .cse39) (and .cse42 .cse3 (<= ULTIMATE.start_main_~x~0 58)) (and .cse5 .cse41 (<= ULTIMATE.start_main_~x~0 88) .cse3) (and .cse5 .cse33 (<= ULTIMATE.start_main_~x~0 98) .cse3) (and (<= 11 ULTIMATE.start_main_~x~0) .cse1 .cse11) (and (<= 48 ULTIMATE.start_main_~x~0) .cse1 .cse46) (and (<= 39 ULTIMATE.start_main_~x~0) .cse32 .cse1) (and .cse5 .cse49 (<= ULTIMATE.start_main_~x~0 97) .cse3) (and (<= 19 ULTIMATE.start_main_~x~0) .cse1 .cse38) (and .cse13 (<= 6 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 6)) (and (<= 2 ULTIMATE.start_main_~x~0) .cse26 (<= ULTIMATE.start_main_~x~0 2)) (and .cse5 (<= ULTIMATE.start_main_~x~0 101) .cse3 .cse47) (and .cse5 .cse22 .cse3 (<= ULTIMATE.start_main_~x~0 77)) (and .cse5 .cse48 (<= ULTIMATE.start_main_~x~0 90) .cse3) (and .cse23 (<= ULTIMATE.start_main_~x~0 61) .cse3) (and (<= ULTIMATE.start_main_~x~0 52) .cse50 .cse3) (and .cse1 .cse50 (<= 50 ULTIMATE.start_main_~x~0)) (and .cse51 (<= 29 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 29)) (and .cse5 (<= ULTIMATE.start_main_~x~0 73) .cse51 .cse3) (and (<= 5 ULTIMATE.start_main_~x~0) .cse49 .cse1) (and .cse2 (<= 49 ULTIMATE.start_main_~x~0) .cse1) (and .cse5 .cse52 .cse3 (<= ULTIMATE.start_main_~x~0 86)) (and .cse25 .cse3 (<= ULTIMATE.start_main_~x~0 67)) (and .cse52 (<= 16 ULTIMATE.start_main_~x~0) .cse1) (and (<= 47 ULTIMATE.start_main_~x~0) .cse24 .cse1))) [2021-10-28 08:50:25,025 INFO L857 garLoopResultBuilder]: For program point L18-3(lines 18 25) no Hoare annotation was computed. [2021-10-28 08:50:25,030 INFO L731 BasicCegarLoop]: Path program histogram: [52, 42, 2, 1, 1, 1, 1] [2021-10-28 08:50:25,032 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:50:25,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:50:25 BoogieIcfgContainer [2021-10-28 08:50:25,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:50:25,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:50:25,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:50:25,086 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:50:25,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:43:30" (3/4) ... [2021-10-28 08:50:25,091 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:50:25,103 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-28 08:50:25,103 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 08:50:25,145 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:50:25,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:50:25,147 INFO L168 Benchmark]: Toolchain (without parser) took 415034.80 ms. Allocated memory was 88.1 MB in the beginning and 1.8 GB in the end (delta: 1.8 GB). Free memory was 62.3 MB in the beginning and 340.2 MB in the end (delta: -277.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. [2021-10-28 08:50:25,147 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 73.4 MB. Free memory was 48.7 MB in the beginning and 48.6 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:50:25,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.83 ms. Allocated memory is still 88.1 MB. Free memory was 62.1 MB in the beginning and 63.9 MB in the end (delta: -1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:50:25,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.99 ms. Allocated memory is still 88.1 MB. Free memory was 63.9 MB in the beginning and 62.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:50:25,149 INFO L168 Benchmark]: Boogie Preprocessor took 29.65 ms. Allocated memory is still 88.1 MB. Free memory was 62.5 MB in the beginning and 61.8 MB in the end (delta: 746.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:50:25,149 INFO L168 Benchmark]: RCFGBuilder took 316.39 ms. Allocated memory is still 88.1 MB. Free memory was 61.6 MB in the beginning and 53.6 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:50:25,149 INFO L168 Benchmark]: TraceAbstraction took 414291.82 ms. Allocated memory was 88.1 MB in the beginning and 1.8 GB in the end (delta: 1.8 GB). Free memory was 53.2 MB in the beginning and 343.3 MB in the end (delta: -290.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. [2021-10-28 08:50:25,150 INFO L168 Benchmark]: Witness Printer took 59.46 ms. Allocated memory is still 1.8 GB. Free memory was 343.3 MB in the beginning and 340.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:50:25,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 73.4 MB. Free memory was 48.7 MB in the beginning and 48.6 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.83 ms. Allocated memory is still 88.1 MB. Free memory was 62.1 MB in the beginning and 63.9 MB in the end (delta: -1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.99 ms. Allocated memory is still 88.1 MB. Free memory was 63.9 MB in the beginning and 62.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.65 ms. Allocated memory is still 88.1 MB. Free memory was 62.5 MB in the beginning and 61.8 MB in the end (delta: 746.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 316.39 ms. Allocated memory is still 88.1 MB. Free memory was 61.6 MB in the beginning and 53.6 MB in the end (delta: 7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 414291.82 ms. Allocated memory was 88.1 MB in the beginning and 1.8 GB in the end (delta: 1.8 GB). Free memory was 53.2 MB in the beginning and 343.3 MB in the end (delta: -290.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 16.1 GB. * Witness Printer took 59.46 ms. Allocated memory is still 1.8 GB. Free memory was 343.3 MB in the beginning and 340.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 414.1s, OverallIterations: 100, TraceHistogramMax: 122, PathProgramHistogramMax: 52, EmptinessCheckTime: 0.2s, AutomataDifference: 38.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2623 SDtfs, 18154 SDslu, 15422 SDs, 0 SdLazy, 22487 SolverSat, 3085 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22995 GetRequests, 19491 SyntacticMatches, 0 SemanticMatches, 3504 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38491 ImplicationChecksByTransitivity, 81.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5250occurred in iteration=84, InterpolantAutomatonStates: 3454, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 100 MinimizatonAttempts, 86750 StatesRemovedByMinimization, 91 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 108 NumberOfFragments, 1152 HoareAnnotationTreeSize, 2 FomulaSimplifications, 3200 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 2 FomulaSimplificationsInter, 16785 FormulaSimplificationTreeSizeReductionInter, 3.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 6.1s SatisfiabilityAnalysisTime, 135.4s InterpolantComputationTime, 39784 NumberOfCodeBlocks, 38866 NumberOfCodeBlocksAsserted, 1451 NumberOfCheckSat, 39589 ConstructedInterpolants, 0 QuantifiedInterpolants, 106837 SizeOfPredicates, 0 NumberOfNonLiveVariables, 31843 ConjunctsInSsa, 2818 ConjunctsInUnsatCore, 195 InterpolantComputations, 6 PerfectInterpolantSequences, 213114/851854 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((y <= 9 && x <= 51) && 9 <= x) || ((y <= 49 && x <= 53) && 51 <= x)) || ((32 <= x && x <= 51) && y <= 32)) || (((y <= 34 && y <= 27) && 51 <= x) && x <= 75)) || (((y <= 34 && y <= 21) && x <= 81) && 51 <= x)) || ((y <= 45 && x <= 57) && 51 <= x)) || ((30 <= x && y <= 30) && x <= 51)) || ((21 <= x && y <= 21) && x <= 51)) || ((31 <= x && y <= 31) && x <= 51)) || (((x <= 91 && y <= 34) && 51 <= x) && y <= 11)) || ((y <= 7 && x <= 51) && 7 <= x)) || (((y <= 6 && y <= 34) && x <= 96) && 51 <= x)) || ((y <= 37 && 37 <= x) && x <= 51)) || (((y <= 24 && y <= 34) && x <= 78) && 51 <= x)) || (((y <= 34 && x <= 70) && 51 <= x) && y <= 32)) || (((y <= 17 && x <= 85) && y <= 34) && 51 <= x)) || (((y <= 34 && x <= 92) && 51 <= x) && y <= 10)) || (((y <= 34 && x <= 74) && 51 <= x) && y <= 28)) || (((y <= 34 && y + 1 <= 0) && x <= 103) && 51 <= x)) || (((y <= 34 && y <= 0) && 51 <= x) && x <= 102)) || (((y <= 13 && y <= 34) && 51 <= x) && x <= 89)) || ((y <= 46 && 46 <= x) && x <= 51)) || ((25 <= x && y <= 25) && x <= 25)) || ((41 <= x && y <= 41) && x <= 51)) || ((x <= 55 && y <= 47) && 51 <= x)) || ((y <= 35 && 35 <= x) && x <= 35)) || (((y <= 34 && y <= 2) && 51 <= x) && x <= 100)) || ((20 <= x && y <= 20) && x <= 51)) || (((y <= 15 && y <= 34) && x <= 87) && 51 <= x)) || ((y <= 34 && 34 <= x) && x <= 34)) || (((y <= 34 && y <= 33) && x <= 69) && 51 <= x)) || (((x <= 80 && y <= 34) && y <= 22) && 51 <= x)) || ((y <= 43 && x <= 51) && 43 <= x)) || ((y <= 15 && 15 <= x) && x <= 51)) || ((x <= 63 && y <= 39) && 51 <= x)) || ((4 <= x && y <= 4) && x <= 51)) || ((y <= 42 && x <= 51) && 42 <= x)) || ((y <= 36 && x <= 51) && 36 <= x)) || (((y <= 34 && x <= 94) && 51 <= x) && y <= 8)) || ((8 <= x && x <= 51) && y <= 8)) || ((y <= 40 && x <= 62) && 51 <= x)) || ((y <= 42 && x <= 60) && 51 <= x)) || ((y <= 40 && x <= 40) && 40 <= x)) || ((y <= 46 && x <= 56) && 51 <= x)) || (((y <= 34 && x <= 83) && 51 <= x) && y <= 19)) || ((y <= 34 && 51 <= x) && x <= 68)) || ((x <= 64 && y <= 38) && 51 <= x)) || ((18 <= x && y <= 18) && x <= 51)) || ((y <= 14 && x <= 51) && 14 <= x)) || (((y <= 34 && y <= 7) && 51 <= x) && x <= 95)) || ((y <= 43 && x <= 59) && 51 <= x)) || (((x <= 82 && y <= 34) && y <= 20) && 51 <= x)) || (((y <= 34 && y <= 31) && x <= 71) && 51 <= x)) || ((x <= 66 && y <= 36) && 51 <= x)) || ((y <= 44 && 44 <= x) && x <= 44)) || (((x <= 99 && y <= 34) && y <= 3) && 51 <= x)) || ((28 <= x && x <= 51) && y <= 28)) || (((y <= 34 && y <= 23) && 51 <= x) && x <= 79)) || (((y <= 34 && y <= 18) && 51 <= x) && x <= 84)) || ((y <= 45 && 45 <= x) && x <= 51)) || ((10 <= x && x <= 10) && y <= 10)) || ((y <= 22 && 22 <= x) && x <= 22)) || (((y <= 34 && 51 <= x) && x <= 76) && y <= 26)) || ((51 <= x && x <= 54) && y <= 48)) || ((x <= 3 && y <= 3) && 3 <= x)) || ((23 <= x && y <= 23) && x <= 51)) || ((x <= 1 && 1 <= x) && y <= 1)) || ((y <= 12 && x <= 51) && 12 <= x)) || ((y <= 27 && 27 <= x) && x <= 27)) || (((x <= 0 && y <= 0) && 0 <= y) && 0 <= x)) || ((26 <= x && x <= 51) && y <= 26)) || ((x <= 51 && 51 <= x) && y <= 51)) || (((y <= 34 && x <= 93) && y <= 9) && 51 <= x)) || ((y <= 24 && 24 <= x) && x <= 51)) || ((y <= 17 && 17 <= x) && x <= 17)) || (((y <= 34 && y <= 30) && x <= 72) && 51 <= x)) || ((y <= 13 && 13 <= x) && x <= 51)) || ((y <= 37 && x <= 65) && 51 <= x)) || ((y <= 33 && 33 <= x) && x <= 51)) || ((38 <= x && x <= 51) && y <= 38)) || ((y <= 44 && 51 <= x) && x <= 58)) || (((y <= 34 && y <= 14) && x <= 88) && 51 <= x)) || (((y <= 34 && y <= 4) && x <= 98) && 51 <= x)) || ((11 <= x && x <= 51) && y <= 11)) || ((48 <= x && x <= 51) && y <= 48)) || ((39 <= x && y <= 39) && x <= 51)) || (((y <= 34 && y <= 5) && x <= 97) && 51 <= x)) || ((19 <= x && x <= 51) && y <= 19)) || ((y <= 6 && 6 <= x) && x <= 6)) || ((2 <= x && y <= 2) && x <= 2)) || (((y <= 34 && x <= 101) && 51 <= x) && y <= 1)) || (((y <= 34 && y <= 25) && 51 <= x) && x <= 77)) || (((y <= 34 && y <= 12) && x <= 90) && 51 <= x)) || ((y <= 41 && x <= 61) && 51 <= x)) || ((x <= 52 && y <= 50) && 51 <= x)) || ((x <= 51 && y <= 50) && 50 <= x)) || ((y <= 29 && 29 <= x) && x <= 29)) || (((y <= 34 && x <= 73) && y <= 29) && 51 <= x)) || ((5 <= x && y <= 5) && x <= 51)) || ((y <= 49 && 49 <= x) && x <= 51)) || (((y <= 34 && y <= 16) && 51 <= x) && x <= 86)) || ((y <= 35 && 51 <= x) && x <= 67)) || ((y <= 16 && 16 <= x) && x <= 51)) || ((47 <= x && y <= 47) && x <= 51) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 08:50:25,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c608890b-ba7f-47fb-b446-6b91d801c592/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...