/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:09:05,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:09:05,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:09:05,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 19:09:05,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 19:09:05,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 19:09:05,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 19:09:05,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 19:09:05,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 19:09:05,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 19:09:05,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 19:09:05,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 19:09:05,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:09:05,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:09:05,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:09:05,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:09:05,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:09:05,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:09:05,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:09:05,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:09:05,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:09:05,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:09:05,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:09:05,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:09:05,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 19:09:05,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 19:09:05,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 19:09:05,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 19:09:05,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 19:09:05,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 19:09:05,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 19:09:05,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 19:09:05,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 19:09:05,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 19:09:05,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 19:09:05,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 19:09:05,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 19:09:05,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 19:09:05,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:09:05,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:09:05,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:09:05,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 19:09:05,974 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:09:05,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:09:05,975 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:09:05,975 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:09:05,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:09:05,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:09:05,979 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:09:05,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:09:05,980 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:09:05,980 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:09:05,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:09:05,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:09:05,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:09:05,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:09:05,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:09:05,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:09:05,983 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:09:05,983 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:09:05,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:09:05,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:09:05,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:09:05,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:09:05,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:09:05,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:09:05,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:09:05,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:09:05,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:09:05,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:09:05,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:09:05,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:09:05,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:09:05,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:09:05,986 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:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:09:06,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:09:06,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:09:06,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:09:06,488 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:09:06,489 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:09:06,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2021-10-13 19:09:06,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2408964a4/ccc572fdc97f417bafdae95fcab4fdfa/FLAG1531ec91a [2021-10-13 19:09:07,203 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:09:07,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2021-10-13 19:09:07,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2408964a4/ccc572fdc97f417bafdae95fcab4fdfa/FLAG1531ec91a [2021-10-13 19:09:07,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2408964a4/ccc572fdc97f417bafdae95fcab4fdfa [2021-10-13 19:09:07,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:09:07,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:09:07,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:09:07,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:09:07,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:09:07,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:07,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d7c2e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07, skipping insertion in model container [2021-10-13 19:09:07,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:07,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:09:07,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:09:07,818 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c[2504,2517] [2021-10-13 19:09:07,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:09:07,830 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:09:07,856 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c[2504,2517] [2021-10-13 19:09:07,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:09:07,883 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:09:07,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07 WrapperNode [2021-10-13 19:09:07,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:09:07,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:09:07,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:09:07,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:09:07,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:07,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:07,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:09:07,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:09:07,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:09:07,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:09:07,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:07,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:07,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:07,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:08,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:08,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:08,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:08,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:09:08,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:09:08,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:09:08,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:09:08,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (1/1) ... [2021-10-13 19:09:08,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:09:08,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:09:08,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 19:09:08,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 19:09:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:09:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:09:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:09:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:09:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:09:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:09:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:09:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:09:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:09:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:09:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:09:08,158 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 19:09:08,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:09:08,571 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-13 19:09:08,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:08 BoogieIcfgContainer [2021-10-13 19:09:08,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:09:08,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:09:08,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:09:08,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:09:08,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:09:07" (1/3) ... [2021-10-13 19:09:08,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73df9afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:08, skipping insertion in model container [2021-10-13 19:09:08,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:09:07" (2/3) ... [2021-10-13 19:09:08,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73df9afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:09:08, skipping insertion in model container [2021-10-13 19:09:08,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:08" (3/3) ... [2021-10-13 19:09:08,603 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2021-10-13 19:09:08,611 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:09:08,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:09:08,611 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-13 19:09:08,611 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 19:09:08,648 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,648 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,648 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,648 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,650 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,650 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,650 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,650 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,653 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,653 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,653 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,653 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,653 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,654 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,654 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,654 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,654 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,655 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,655 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,656 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,656 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,656 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,657 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,657 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,657 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,657 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,660 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,661 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,665 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,665 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,666 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,666 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,666 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,666 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,667 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,667 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,667 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,669 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,669 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,669 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,669 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,670 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,670 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,674 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,675 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,675 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,675 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,675 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,676 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,690 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,691 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:09:08,705 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 19:09:08,762 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 19:09:08,770 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, mConcurrency=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 [2021-10-13 19:09:08,770 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-10-13 19:09:08,788 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 19:09:08,801 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 149 transitions, 314 flow [2021-10-13 19:09:08,804 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 149 transitions, 314 flow [2021-10-13 19:09:08,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 149 transitions, 314 flow [2021-10-13 19:09:08,879 INFO L129 PetriNetUnfolder]: 8/147 cut-off events. [2021-10-13 19:09:08,880 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-13 19:09:08,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 147 events. 8/147 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2021-10-13 19:09:08,893 INFO L116 LiptonReduction]: Number of co-enabled transitions 3672 [2021-10-13 19:09:13,767 INFO L131 LiptonReduction]: Checked pairs total: 10344 [2021-10-13 19:09:13,768 INFO L133 LiptonReduction]: Total number of compositions: 139 [2021-10-13 19:09:13,777 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 45 transitions, 106 flow [2021-10-13 19:09:13,825 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 566 states, 542 states have (on average 2.6752767527675276) internal successors, (1450), 565 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 566 states, 542 states have (on average 2.6752767527675276) internal successors, (1450), 565 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:13,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:09:13,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:13,837 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 19:09:13,838 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:13,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:13,844 INFO L82 PathProgramCache]: Analyzing trace with hash -337550174, now seen corresponding path program 1 times [2021-10-13 19:09:13,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:13,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447478510] [2021-10-13 19:09:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:13,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:14,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:14,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447478510] [2021-10-13 19:09:14,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447478510] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:14,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:14,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:09:14,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819296426] [2021-10-13 19:09:14,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:09:14,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:14,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:09:14,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:14,121 INFO L87 Difference]: Start difference. First operand has 566 states, 542 states have (on average 2.6752767527675276) internal successors, (1450), 565 states have internal predecessors, (1450), 0 states have call successors, (0), 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 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:14,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:14,245 INFO L93 Difference]: Finished difference Result 634 states and 1584 transitions. [2021-10-13 19:09:14,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:09:14,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 19:09:14,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:14,269 INFO L225 Difference]: With dead ends: 634 [2021-10-13 19:09:14,269 INFO L226 Difference]: Without dead ends: 634 [2021-10-13 19:09:14,270 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 44.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:09:14,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2021-10-13 19:09:14,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2021-10-13 19:09:14,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 610 states have (on average 2.59672131147541) internal successors, (1584), 633 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:14,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1584 transitions. [2021-10-13 19:09:14,363 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1584 transitions. Word has length 6 [2021-10-13 19:09:14,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:14,363 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1584 transitions. [2021-10-13 19:09:14,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:14,364 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1584 transitions. [2021-10-13 19:09:14,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 19:09:14,365 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:14,365 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 19:09:14,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 19:09:14,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:14,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:14,366 INFO L82 PathProgramCache]: Analyzing trace with hash -337550173, now seen corresponding path program 1 times [2021-10-13 19:09:14,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:14,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607342980] [2021-10-13 19:09:14,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:14,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:14,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:14,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607342980] [2021-10-13 19:09:14,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607342980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:14,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:14,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:09:14,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324838574] [2021-10-13 19:09:14,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:09:14,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:14,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:09:14,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:14,432 INFO L87 Difference]: Start difference. First operand 634 states and 1584 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:14,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:14,489 INFO L93 Difference]: Finished difference Result 634 states and 1550 transitions. [2021-10-13 19:09:14,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:09:14,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 19:09:14,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:14,495 INFO L225 Difference]: With dead ends: 634 [2021-10-13 19:09:14,496 INFO L226 Difference]: Without dead ends: 634 [2021-10-13 19:09:14,496 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:09:14,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2021-10-13 19:09:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2021-10-13 19:09:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 610 states have (on average 2.540983606557377) internal successors, (1550), 633 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:14,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1550 transitions. [2021-10-13 19:09:14,529 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1550 transitions. Word has length 6 [2021-10-13 19:09:14,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:14,530 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1550 transitions. [2021-10-13 19:09:14,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:14,530 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1550 transitions. [2021-10-13 19:09:14,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:09:14,531 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:14,531 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:14,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 19:09:14,532 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:14,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:14,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1878058973, now seen corresponding path program 1 times [2021-10-13 19:09:14,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:14,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90911165] [2021-10-13 19:09:14,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:14,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:14,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:14,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:14,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90911165] [2021-10-13 19:09:14,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90911165] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:14,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:14,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:09:14,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773273559] [2021-10-13 19:09:14,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:09:14,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:14,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:09:14,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:09:14,642 INFO L87 Difference]: Start difference. First operand 634 states and 1550 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2021-10-13 19:09:14,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:14,780 INFO L93 Difference]: Finished difference Result 736 states and 1828 transitions. [2021-10-13 19:09:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 19:09:14,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 [2021-10-13 19:09:14,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:14,787 INFO L225 Difference]: With dead ends: 736 [2021-10-13 19:09:14,788 INFO L226 Difference]: Without dead ends: 736 [2021-10-13 19:09:14,788 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 45.3ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:09:14,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2021-10-13 19:09:14,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 710. [2021-10-13 19:09:14,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 686 states have (on average 2.6122448979591835) internal successors, (1792), 709 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:14,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1792 transitions. [2021-10-13 19:09:14,825 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1792 transitions. Word has length 7 [2021-10-13 19:09:14,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:14,826 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 1792 transitions. [2021-10-13 19:09:14,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2021-10-13 19:09:14,826 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1792 transitions. [2021-10-13 19:09:14,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 19:09:14,828 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:14,828 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:14,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 19:09:14,828 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:14,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:14,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1878058972, now seen corresponding path program 1 times [2021-10-13 19:09:14,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:14,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68711824] [2021-10-13 19:09:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:14,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:14,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:14,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:14,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68711824] [2021-10-13 19:09:14,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68711824] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:14,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:14,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:09:14,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529872763] [2021-10-13 19:09:14,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:09:14,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:14,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:09:14,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:14,936 INFO L87 Difference]: Start difference. First operand 710 states and 1792 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:15,031 INFO L93 Difference]: Finished difference Result 926 states and 2286 transitions. [2021-10-13 19:09:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:09:15,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 19:09:15,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:15,039 INFO L225 Difference]: With dead ends: 926 [2021-10-13 19:09:15,040 INFO L226 Difference]: Without dead ends: 926 [2021-10-13 19:09:15,040 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:09:15,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2021-10-13 19:09:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 698. [2021-10-13 19:09:15,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 674 states have (on average 2.578635014836795) internal successors, (1738), 697 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1738 transitions. [2021-10-13 19:09:15,067 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1738 transitions. Word has length 7 [2021-10-13 19:09:15,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:15,068 INFO L470 AbstractCegarLoop]: Abstraction has 698 states and 1738 transitions. [2021-10-13 19:09:15,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,068 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1738 transitions. [2021-10-13 19:09:15,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:09:15,070 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:15,070 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:15,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 19:09:15,071 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:15,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:15,071 INFO L82 PathProgramCache]: Analyzing trace with hash -33941076, now seen corresponding path program 1 times [2021-10-13 19:09:15,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:15,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163608301] [2021-10-13 19:09:15,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:15,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:15,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:15,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:15,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163608301] [2021-10-13 19:09:15,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163608301] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:15,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:15,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:09:15,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150691170] [2021-10-13 19:09:15,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:09:15,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:15,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:09:15,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:15,120 INFO L87 Difference]: Start difference. First operand 698 states and 1738 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:15,200 INFO L93 Difference]: Finished difference Result 720 states and 1811 transitions. [2021-10-13 19:09:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:09:15,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 19:09:15,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:15,206 INFO L225 Difference]: With dead ends: 720 [2021-10-13 19:09:15,207 INFO L226 Difference]: Without dead ends: 720 [2021-10-13 19:09:15,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:09:15,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2021-10-13 19:09:15,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 698. [2021-10-13 19:09:15,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 676 states have (on average 2.5724852071005917) internal successors, (1739), 697 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1739 transitions. [2021-10-13 19:09:15,234 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1739 transitions. Word has length 9 [2021-10-13 19:09:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:15,235 INFO L470 AbstractCegarLoop]: Abstraction has 698 states and 1739 transitions. [2021-10-13 19:09:15,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1739 transitions. [2021-10-13 19:09:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 19:09:15,238 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:15,238 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:15,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 19:09:15,238 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:15,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:15,239 INFO L82 PathProgramCache]: Analyzing trace with hash -33941120, now seen corresponding path program 1 times [2021-10-13 19:09:15,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:15,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82793247] [2021-10-13 19:09:15,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:15,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:15,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:15,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:15,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82793247] [2021-10-13 19:09:15,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82793247] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:15,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:15,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:09:15,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995347332] [2021-10-13 19:09:15,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:09:15,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:15,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:09:15,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:15,330 INFO L87 Difference]: Start difference. First operand 698 states and 1739 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:15,432 INFO L93 Difference]: Finished difference Result 864 states and 2097 transitions. [2021-10-13 19:09:15,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:09:15,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 19:09:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:15,439 INFO L225 Difference]: With dead ends: 864 [2021-10-13 19:09:15,439 INFO L226 Difference]: Without dead ends: 864 [2021-10-13 19:09:15,440 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:09:15,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2021-10-13 19:09:15,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 654. [2021-10-13 19:09:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 634 states have (on average 2.529968454258675) internal successors, (1604), 653 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1604 transitions. [2021-10-13 19:09:15,464 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1604 transitions. Word has length 9 [2021-10-13 19:09:15,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:15,464 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 1604 transitions. [2021-10-13 19:09:15,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,465 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1604 transitions. [2021-10-13 19:09:15,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:09:15,466 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:15,466 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:15,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 19:09:15,467 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:15,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:15,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1784802650, now seen corresponding path program 1 times [2021-10-13 19:09:15,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:15,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80247430] [2021-10-13 19:09:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:15,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:15,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:15,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:15,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80247430] [2021-10-13 19:09:15,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80247430] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:15,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:15,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:09:15,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540342230] [2021-10-13 19:09:15,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:09:15,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:15,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:09:15,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:09:15,517 INFO L87 Difference]: Start difference. First operand 654 states and 1604 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:15,545 INFO L93 Difference]: Finished difference Result 590 states and 1436 transitions. [2021-10-13 19:09:15,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:09:15,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 19:09:15,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:15,550 INFO L225 Difference]: With dead ends: 590 [2021-10-13 19:09:15,550 INFO L226 Difference]: Without dead ends: 586 [2021-10-13 19:09:15,550 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:15,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2021-10-13 19:09:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2021-10-13 19:09:15,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 574 states have (on average 2.491289198606272) internal successors, (1430), 585 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 1430 transitions. [2021-10-13 19:09:15,570 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 1430 transitions. Word has length 11 [2021-10-13 19:09:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:15,570 INFO L470 AbstractCegarLoop]: Abstraction has 586 states and 1430 transitions. [2021-10-13 19:09:15,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 1430 transitions. [2021-10-13 19:09:15,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:09:15,572 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:15,572 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:15,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 19:09:15,573 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:15,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:15,573 INFO L82 PathProgramCache]: Analyzing trace with hash -433614297, now seen corresponding path program 1 times [2021-10-13 19:09:15,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:15,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842962106] [2021-10-13 19:09:15,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:15,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:15,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:15,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842962106] [2021-10-13 19:09:15,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842962106] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:15,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:15,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:09:15,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294393863] [2021-10-13 19:09:15,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:09:15,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:15,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:09:15,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:09:15,623 INFO L87 Difference]: Start difference. First operand 586 states and 1430 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:15,765 INFO L93 Difference]: Finished difference Result 992 states and 2398 transitions. [2021-10-13 19:09:15,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 19:09:15,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:09:15,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:15,772 INFO L225 Difference]: With dead ends: 992 [2021-10-13 19:09:15,773 INFO L226 Difference]: Without dead ends: 992 [2021-10-13 19:09:15,773 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 47.2ms TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:09:15,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2021-10-13 19:09:15,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 634. [2021-10-13 19:09:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 622 states have (on average 2.517684887459807) internal successors, (1566), 633 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1566 transitions. [2021-10-13 19:09:15,798 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1566 transitions. Word has length 12 [2021-10-13 19:09:15,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:15,800 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1566 transitions. [2021-10-13 19:09:15,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1566 transitions. [2021-10-13 19:09:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:09:15,802 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:15,802 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:15,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 19:09:15,804 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:15,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:15,804 INFO L82 PathProgramCache]: Analyzing trace with hash -536338328, now seen corresponding path program 1 times [2021-10-13 19:09:15,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:15,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536727682] [2021-10-13 19:09:15,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:15,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:15,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:15,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:15,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536727682] [2021-10-13 19:09:15,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536727682] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:15,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:15,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:09:15,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753025696] [2021-10-13 19:09:15,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:09:15,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:15,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:09:15,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:09:15,894 INFO L87 Difference]: Start difference. First operand 634 states and 1566 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:16,036 INFO L93 Difference]: Finished difference Result 596 states and 1476 transitions. [2021-10-13 19:09:16,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 19:09:16,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:09:16,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:16,041 INFO L225 Difference]: With dead ends: 596 [2021-10-13 19:09:16,041 INFO L226 Difference]: Without dead ends: 596 [2021-10-13 19:09:16,042 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 64.1ms TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-10-13 19:09:16,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-10-13 19:09:16,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 554. [2021-10-13 19:09:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 546 states have (on average 2.4816849816849818) internal successors, (1355), 553 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1355 transitions. [2021-10-13 19:09:16,061 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1355 transitions. Word has length 12 [2021-10-13 19:09:16,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:16,062 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 1355 transitions. [2021-10-13 19:09:16,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,062 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1355 transitions. [2021-10-13 19:09:16,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:09:16,063 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:16,063 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:16,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 19:09:16,064 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:16,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:16,064 INFO L82 PathProgramCache]: Analyzing trace with hash -536338372, now seen corresponding path program 1 times [2021-10-13 19:09:16,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:16,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405971521] [2021-10-13 19:09:16,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:16,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:16,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:16,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:16,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405971521] [2021-10-13 19:09:16,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405971521] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:16,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:16,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:09:16,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727448705] [2021-10-13 19:09:16,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 19:09:16,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:16,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 19:09:16,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:09:16,112 INFO L87 Difference]: Start difference. First operand 554 states and 1355 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:16,274 INFO L93 Difference]: Finished difference Result 936 states and 2243 transitions. [2021-10-13 19:09:16,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 19:09:16,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:09:16,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:16,281 INFO L225 Difference]: With dead ends: 936 [2021-10-13 19:09:16,281 INFO L226 Difference]: Without dead ends: 936 [2021-10-13 19:09:16,282 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 68.0ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-10-13 19:09:16,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2021-10-13 19:09:16,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 542. [2021-10-13 19:09:16,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 534 states have (on average 2.4812734082397006) internal successors, (1325), 541 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 1325 transitions. [2021-10-13 19:09:16,324 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 1325 transitions. Word has length 12 [2021-10-13 19:09:16,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:16,324 INFO L470 AbstractCegarLoop]: Abstraction has 542 states and 1325 transitions. [2021-10-13 19:09:16,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,325 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 1325 transitions. [2021-10-13 19:09:16,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 19:09:16,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:16,326 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:16,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 19:09:16,326 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:16,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:16,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1572080458, now seen corresponding path program 1 times [2021-10-13 19:09:16,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:16,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808436945] [2021-10-13 19:09:16,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:16,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:16,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:16,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808436945] [2021-10-13 19:09:16,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808436945] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:16,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:16,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:09:16,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141011551] [2021-10-13 19:09:16,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:09:16,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:16,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:09:16,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:09:16,406 INFO L87 Difference]: Start difference. First operand 542 states and 1325 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:16,430 INFO L93 Difference]: Finished difference Result 484 states and 1163 transitions. [2021-10-13 19:09:16,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:09:16,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 19:09:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:16,434 INFO L225 Difference]: With dead ends: 484 [2021-10-13 19:09:16,434 INFO L226 Difference]: Without dead ends: 476 [2021-10-13 19:09:16,435 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-10-13 19:09:16,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2021-10-13 19:09:16,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 470 states have (on average 2.4468085106382977) internal successors, (1150), 475 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 1150 transitions. [2021-10-13 19:09:16,453 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 1150 transitions. Word has length 12 [2021-10-13 19:09:16,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:16,453 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 1150 transitions. [2021-10-13 19:09:16,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,453 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 1150 transitions. [2021-10-13 19:09:16,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:09:16,455 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:16,455 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:16,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 19:09:16,455 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:16,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:16,456 INFO L82 PathProgramCache]: Analyzing trace with hash 454916683, now seen corresponding path program 1 times [2021-10-13 19:09:16,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:16,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894221350] [2021-10-13 19:09:16,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:16,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:16,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:16,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:16,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894221350] [2021-10-13 19:09:16,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894221350] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:16,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:16,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 19:09:16,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761283923] [2021-10-13 19:09:16,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:09:16,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:16,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:09:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:09:16,510 INFO L87 Difference]: Start difference. First operand 476 states and 1150 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:16,690 INFO L93 Difference]: Finished difference Result 902 states and 2148 transitions. [2021-10-13 19:09:16,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 19:09:16,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:09:16,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:16,698 INFO L225 Difference]: With dead ends: 902 [2021-10-13 19:09:16,698 INFO L226 Difference]: Without dead ends: 902 [2021-10-13 19:09:16,699 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 77.3ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-10-13 19:09:16,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2021-10-13 19:09:16,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 540. [2021-10-13 19:09:16,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 534 states have (on average 2.4681647940074907) internal successors, (1318), 539 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) [2021-10-13 19:09:16,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 1318 transitions. [2021-10-13 19:09:16,724 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 1318 transitions. Word has length 13 [2021-10-13 19:09:16,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:16,724 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 1318 transitions. [2021-10-13 19:09:16,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,724 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 1318 transitions. [2021-10-13 19:09:16,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 19:09:16,726 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:16,726 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:16,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 19:09:16,726 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:16,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:16,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1524104278, now seen corresponding path program 1 times [2021-10-13 19:09:16,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:16,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937306150] [2021-10-13 19:09:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:16,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:16,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:16,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937306150] [2021-10-13 19:09:16,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937306150] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:16,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:16,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 19:09:16,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041985228] [2021-10-13 19:09:16,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 19:09:16,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:16,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 19:09:16,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:09:16,802 INFO L87 Difference]: Start difference. First operand 540 states and 1318 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2021-10-13 19:09:16,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:16,924 INFO L93 Difference]: Finished difference Result 544 states and 1230 transitions. [2021-10-13 19:09:16,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 19:09:16,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 19:09:16,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:16,929 INFO L225 Difference]: With dead ends: 544 [2021-10-13 19:09:16,929 INFO L226 Difference]: Without dead ends: 544 [2021-10-13 19:09:16,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 51.6ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-10-13 19:09:16,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-10-13 19:09:16,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 316. [2021-10-13 19:09:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 312 states have (on average 2.326923076923077) internal successors, (726), 315 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 726 transitions. [2021-10-13 19:09:16,942 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 726 transitions. Word has length 14 [2021-10-13 19:09:16,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:16,943 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 726 transitions. [2021-10-13 19:09:16,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2021-10-13 19:09:16,943 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 726 transitions. [2021-10-13 19:09:16,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:09:16,944 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:16,944 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:16,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 19:09:16,945 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:16,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:16,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1394519042, now seen corresponding path program 1 times [2021-10-13 19:09:16,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:16,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999982463] [2021-10-13 19:09:16,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:16,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:16,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:16,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:16,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999982463] [2021-10-13 19:09:16,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999982463] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:16,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:16,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 19:09:16,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445949215] [2021-10-13 19:09:16,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:09:16,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:16,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:09:16,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:16,987 INFO L87 Difference]: Start difference. First operand 316 states and 726 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-13 19:09:17,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:17,049 INFO L93 Difference]: Finished difference Result 536 states and 1226 transitions. [2021-10-13 19:09:17,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:09:17,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 19:09:17,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:17,053 INFO L225 Difference]: With dead ends: 536 [2021-10-13 19:09:17,053 INFO L226 Difference]: Without dead ends: 536 [2021-10-13 19:09:17,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:09:17,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2021-10-13 19:09:17,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 316. [2021-10-13 19:09:17,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 312 states have (on average 2.2884615384615383) internal successors, (714), 315 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 714 transitions. [2021-10-13 19:09:17,066 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 714 transitions. Word has length 21 [2021-10-13 19:09:17,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:17,067 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 714 transitions. [2021-10-13 19:09:17,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-13 19:09:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 714 transitions. [2021-10-13 19:09:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:09:17,069 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:17,069 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:17,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 19:09:17,069 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:17,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:17,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1676315542, now seen corresponding path program 1 times [2021-10-13 19:09:17,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:17,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883320469] [2021-10-13 19:09:17,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:17,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:17,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:17,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:17,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883320469] [2021-10-13 19:09:17,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883320469] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:17,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:17,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:09:17,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224647997] [2021-10-13 19:09:17,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:09:17,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:17,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:09:17,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:09:17,123 INFO L87 Difference]: Start difference. First operand 316 states and 714 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-13 19:09:17,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:17,164 INFO L93 Difference]: Finished difference Result 312 states and 706 transitions. [2021-10-13 19:09:17,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 19:09:17,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 19:09:17,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:17,167 INFO L225 Difference]: With dead ends: 312 [2021-10-13 19:09:17,167 INFO L226 Difference]: Without dead ends: 312 [2021-10-13 19:09:17,171 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:09:17,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-10-13 19:09:17,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2021-10-13 19:09:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 309 states have (on average 2.284789644012945) internal successors, (706), 311 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 706 transitions. [2021-10-13 19:09:17,186 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 706 transitions. Word has length 21 [2021-10-13 19:09:17,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:17,186 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 706 transitions. [2021-10-13 19:09:17,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-13 19:09:17,186 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 706 transitions. [2021-10-13 19:09:17,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:09:17,187 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:17,188 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:17,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 19:09:17,189 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:17,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1676315597, now seen corresponding path program 1 times [2021-10-13 19:09:17,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:17,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205282485] [2021-10-13 19:09:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:17,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:17,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:17,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205282485] [2021-10-13 19:09:17,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205282485] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:17,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:17,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:09:17,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775599356] [2021-10-13 19:09:17,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:09:17,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:17,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:09:17,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:09:17,234 INFO L87 Difference]: Start difference. First operand 312 states and 706 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:17,256 INFO L93 Difference]: Finished difference Result 308 states and 698 transitions. [2021-10-13 19:09:17,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:09:17,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 19:09:17,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:17,259 INFO L225 Difference]: With dead ends: 308 [2021-10-13 19:09:17,259 INFO L226 Difference]: Without dead ends: 250 [2021-10-13 19:09:17,259 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:17,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-13 19:09:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2021-10-13 19:09:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 248 states have (on average 2.2379032258064515) internal successors, (555), 249 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 555 transitions. [2021-10-13 19:09:17,269 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 555 transitions. Word has length 21 [2021-10-13 19:09:17,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:17,269 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 555 transitions. [2021-10-13 19:09:17,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,270 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 555 transitions. [2021-10-13 19:09:17,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:09:17,271 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:17,271 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:17,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 19:09:17,272 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:17,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:17,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1884992450, now seen corresponding path program 2 times [2021-10-13 19:09:17,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:17,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756084212] [2021-10-13 19:09:17,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:17,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:17,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:17,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756084212] [2021-10-13 19:09:17,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756084212] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:17,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:17,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 19:09:17,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785935976] [2021-10-13 19:09:17,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:09:17,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:17,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:09:17,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:09:17,351 INFO L87 Difference]: Start difference. First operand 250 states and 555 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-13 19:09:17,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:17,378 INFO L93 Difference]: Finished difference Result 244 states and 543 transitions. [2021-10-13 19:09:17,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:09:17,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 19:09:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:17,381 INFO L225 Difference]: With dead ends: 244 [2021-10-13 19:09:17,381 INFO L226 Difference]: Without dead ends: 244 [2021-10-13 19:09:17,382 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 21.9ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:09:17,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-10-13 19:09:17,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-10-13 19:09:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 2.234567901234568) internal successors, (543), 243 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 543 transitions. [2021-10-13 19:09:17,389 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 543 transitions. Word has length 21 [2021-10-13 19:09:17,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:17,392 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 543 transitions. [2021-10-13 19:09:17,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-13 19:09:17,392 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 543 transitions. [2021-10-13 19:09:17,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:09:17,393 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:09:17,393 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:09:17,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 19:09:17,394 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-10-13 19:09:17,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:09:17,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1884992485, now seen corresponding path program 1 times [2021-10-13 19:09:17,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:09:17,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646434322] [2021-10-13 19:09:17,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:09:17,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:09:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:09:17,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:09:17,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:09:17,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646434322] [2021-10-13 19:09:17,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646434322] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:09:17,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:09:17,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:09:17,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171884796] [2021-10-13 19:09:17,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:09:17,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:09:17,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:09:17,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:09:17,444 INFO L87 Difference]: Start difference. First operand 244 states and 543 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:09:17,456 INFO L93 Difference]: Finished difference Result 238 states and 531 transitions. [2021-10-13 19:09:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:09:17,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 19:09:17,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:09:17,457 INFO L225 Difference]: With dead ends: 238 [2021-10-13 19:09:17,457 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 19:09:17,457 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:09:17,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 19:09:17,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 19:09:17,458 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) [2021-10-13 19:09:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 19:09:17,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-10-13 19:09:17,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:09:17,458 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 19:09:17,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:09:17,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 19:09:17,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 19:09:17,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,463 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,463 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,463 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,463 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,484 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,484 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 19:09:17,485 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 19:09:17,485 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,485 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,485 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,486 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,486 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,486 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,486 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,486 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:09:17,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 19:09:17,494 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 19:09:17,494 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 19:09:17,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:09:17 BasicIcfg [2021-10-13 19:09:17,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:09:17,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 19:09:17,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 19:09:17,498 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 19:09:17,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:09:08" (3/4) ... [2021-10-13 19:09:17,501 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 19:09:17,508 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-13 19:09:17,509 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-13 19:09:17,514 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-13 19:09:17,514 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 19:09:17,514 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:09:17,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:09:17,554 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/parallel-bakery-2.wvr.c-witness.graphml [2021-10-13 19:09:17,554 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 19:09:17,556 INFO L168 Benchmark]: Toolchain (without parser) took 10003.56 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 126.0 MB in the beginning and 192.4 MB in the end (delta: -66.4 MB). Peak memory consumption was 1.7 MB. Max. memory is 8.0 GB. [2021-10-13 19:09:17,556 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:09:17,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.94 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 115.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:09:17,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.67 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 113.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:09:17,558 INFO L168 Benchmark]: Boogie Preprocessor took 60.79 ms. Allocated memory is still 151.0 MB. Free memory was 113.5 MB in the beginning and 112.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:09:17,558 INFO L168 Benchmark]: RCFGBuilder took 545.10 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 98.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-13 19:09:17,559 INFO L168 Benchmark]: TraceAbstraction took 8918.65 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 98.4 MB in the beginning and 195.6 MB in the end (delta: -97.2 MB). Peak memory consumption was 95.0 MB. Max. memory is 8.0 GB. [2021-10-13 19:09:17,559 INFO L168 Benchmark]: Witness Printer took 56.72 ms. Allocated memory is still 218.1 MB. Free memory was 195.6 MB in the beginning and 192.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:09:17,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 323.94 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 115.4 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 81.67 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 113.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 60.79 ms. Allocated memory is still 151.0 MB. Free memory was 113.5 MB in the beginning and 112.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 545.10 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 98.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8918.65 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 98.4 MB in the beginning and 195.6 MB in the end (delta: -97.2 MB). Peak memory consumption was 95.0 MB. Max. memory is 8.0 GB. * Witness Printer took 56.72 ms. Allocated memory is still 218.1 MB. Free memory was 195.6 MB in the beginning and 192.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4964.0ms, 148 PlacesBefore, 48 PlacesAfterwards, 149 TransitionsBefore, 45 TransitionsAfterwards, 3672 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 139 TotalNumberOfCompositions, 10344 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5702, positive: 5410, positive conditional: 0, positive unconditional: 5410, negative: 292, negative conditional: 0, negative unconditional: 292, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2777, positive: 2702, positive conditional: 0, positive unconditional: 2702, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2777, positive: 2675, positive conditional: 0, positive unconditional: 2675, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 102, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 169, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 137, negative conditional: 0, negative unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5702, positive: 2708, positive conditional: 0, positive unconditional: 2708, negative: 217, negative conditional: 0, negative unconditional: 217, unknown: 2777, unknown conditional: 0, unknown unconditional: 2777] , Statistics on independence cache: Total cache size (in pairs): 402, Positive cache size: 370, Positive conditional cache size: 0, Positive unconditional cache size: 370, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 212 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 8730.9ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 31.6ms, AutomataDifference: 1731.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5054.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 838 SDtfs, 2016 SDslu, 1611 SDs, 0 SdLazy, 930 SolverSat, 329 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 678.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 587.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=710occurred in iteration=3, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 425.0ms AutomataMinimizationTime, 18 MinimizatonAttempts, 2090 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.0ms SsaConstructionTime, 322.1ms SatisfiabilityAnalysisTime, 777.3ms InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 649 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 19:09:17,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...