/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-misc-2-unrolled-atomic.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-08 15:51:21,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-08 15:51:21,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-08 15:51:21,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-08 15:51:21,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-08 15:51:21,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-08 15:51:21,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-08 15:51:21,549 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-08 15:51:21,608 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-08 15:51:21,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-08 15:51:21,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-08 15:51:21,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-08 15:51:21,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-08 15:51:21,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-08 15:51:21,615 INFO L138 SettingsManager]: * Use SBE=true [2021-10-08 15:51:21,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-08 15:51:21,616 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-08 15:51:21,617 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-08 15:51:21,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-08 15:51:21,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-08 15:51:21,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-08 15:51:21,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-08 15:51:21,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-08 15:51:21,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-08 15:51:21,619 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-08 15:51:21,620 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-08 15:51:21,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-08 15:51:21,620 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-08 15:51:21,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-08 15:51:21,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-08 15:51:21,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-08 15:51:21,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-08 15:51:21,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:51:21,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-08 15:51:21,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-08 15:51:21,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-08 15:51:21,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-08 15:51:21,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-08 15:51:21,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-08 15:51:21,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-08 15:51:21,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-08 15:51:22,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-08 15:51:22,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-08 15:51:22,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-08 15:51:22,136 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-08 15:51:22,137 INFO L275 PluginConnector]: CDTParser initialized [2021-10-08 15:51:22,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2021-10-08 15:51:22,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b62b2aed1/9adbafb807a24d639e2573746f43ada5/FLAG86867bb41 [2021-10-08 15:51:22,874 INFO L306 CDTParser]: Found 1 translation units. [2021-10-08 15:51:22,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2021-10-08 15:51:22,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b62b2aed1/9adbafb807a24d639e2573746f43ada5/FLAG86867bb41 [2021-10-08 15:51:22,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b62b2aed1/9adbafb807a24d639e2573746f43ada5 [2021-10-08 15:51:22,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-08 15:51:22,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-08 15:51:22,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-08 15:51:22,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-08 15:51:22,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-08 15:51:22,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:51:22" (1/1) ... [2021-10-08 15:51:22,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b12275c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:22, skipping insertion in model container [2021-10-08 15:51:22,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.10 03:51:22" (1/1) ... [2021-10-08 15:51:22,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-08 15:51:22,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-08 15:51:23,297 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-misc-2-unrolled-atomic.wvr.c[2243,2256] [2021-10-08 15:51:23,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:51:23,320 INFO L203 MainTranslator]: Completed pre-run [2021-10-08 15:51:23,371 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-misc-2-unrolled-atomic.wvr.c[2243,2256] [2021-10-08 15:51:23,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-08 15:51:23,393 INFO L208 MainTranslator]: Completed translation [2021-10-08 15:51:23,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23 WrapperNode [2021-10-08 15:51:23,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-08 15:51:23,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-08 15:51:23,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-08 15:51:23,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-08 15:51:23,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (1/1) ... [2021-10-08 15:51:23,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (1/1) ... [2021-10-08 15:51:23,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-08 15:51:23,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-08 15:51:23,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-08 15:51:23,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-08 15:51:23,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (1/1) ... [2021-10-08 15:51:23,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (1/1) ... [2021-10-08 15:51:23,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (1/1) ... [2021-10-08 15:51:23,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (1/1) ... [2021-10-08 15:51:23,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (1/1) ... [2021-10-08 15:51:23,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (1/1) ... [2021-10-08 15:51:23,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (1/1) ... [2021-10-08 15:51:23,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-08 15:51:23,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-08 15:51:23,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-08 15:51:23,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-08 15:51:23,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (1/1) ... [2021-10-08 15:51:23,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-08 15:51:23,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:51:23,587 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) [2021-10-08 15:51:23,619 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 [2021-10-08 15:51:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-08 15:51:23,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-08 15:51:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-08 15:51:23,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-08 15:51:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-08 15:51:23,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-08 15:51:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-08 15:51:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-08 15:51:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-08 15:51:23,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-08 15:51:23,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-08 15:51:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-08 15:51:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-08 15:51:23,679 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-08 15:51:24,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-08 15:51:24,592 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-08 15:51:24,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:51:24 BoogieIcfgContainer [2021-10-08 15:51:24,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-08 15:51:24,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-08 15:51:24,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-08 15:51:24,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-08 15:51:24,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.10 03:51:22" (1/3) ... [2021-10-08 15:51:24,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bf325d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:51:24, skipping insertion in model container [2021-10-08 15:51:24,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.10 03:51:23" (2/3) ... [2021-10-08 15:51:24,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bf325d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 03:51:24, skipping insertion in model container [2021-10-08 15:51:24,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:51:24" (3/3) ... [2021-10-08 15:51:24,605 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled-atomic.wvr.c [2021-10-08 15:51:24,612 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-08 15:51:24,612 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-08 15:51:24,613 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-10-08 15:51:24,613 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-08 15:51:24,648 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,649 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,650 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,650 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,651 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,652 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,653 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,653 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,653 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,653 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,654 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,655 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,656 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,657 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,657 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,657 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,657 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,658 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,659 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,659 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,659 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,659 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,659 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,660 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,660 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,660 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,660 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,661 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,661 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,662 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,663 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,664 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,665 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,666 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,666 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,666 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,672 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,673 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,673 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,674 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,674 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,674 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,676 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,677 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-08 15:51:24,684 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-08 15:51:24,752 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-08 15:51:24,761 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 [2021-10-08 15:51:24,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-10-08 15:51:24,782 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-08 15:51:24,796 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 109 transitions, 234 flow [2021-10-08 15:51:24,800 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 109 transitions, 234 flow [2021-10-08 15:51:24,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions, 234 flow [2021-10-08 15:51:24,918 INFO L129 PetriNetUnfolder]: 7/107 cut-off events. [2021-10-08 15:51:24,918 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-08 15:51:24,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 107 events. 7/107 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 138 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-10-08 15:51:24,927 INFO L116 LiptonReduction]: Number of co-enabled transitions 1188 [2021-10-08 15:51:29,870 INFO L131 LiptonReduction]: Checked pairs total: 1867 [2021-10-08 15:51:29,871 INFO L133 LiptonReduction]: Total number of compositions: 125 [2021-10-08 15:51:29,881 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 35 transitions, 86 flow [2021-10-08 15:51:29,916 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 334 states, 214 states have (on average 3.7803738317757007) internal successors, (809), 333 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:29,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 334 states, 214 states have (on average 3.7803738317757007) internal successors, (809), 333 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:29,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 15:51:29,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:29,927 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 15:51:29,928 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2021-10-08 15:51:29,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:29,935 INFO L82 PathProgramCache]: Analyzing trace with hash 525219, now seen corresponding path program 1 times [2021-10-08 15:51:29,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:29,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207622695] [2021-10-08 15:51:29,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:29,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:30,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:30,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:30,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207622695] [2021-10-08 15:51:30,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207622695] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:30,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:30,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 15:51:30,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551428755] [2021-10-08 15:51:30,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-08 15:51:30,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:30,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-08 15:51:30,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-08 15:51:30,190 INFO L87 Difference]: Start difference. First operand has 334 states, 214 states have (on average 3.7803738317757007) internal successors, (809), 333 states have internal predecessors, (809), 0 states have call successors, (0), 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 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:30,232 INFO L93 Difference]: Finished difference Result 158 states and 377 transitions. [2021-10-08 15:51:30,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-08 15:51:30,234 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 15:51:30,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:30,255 INFO L225 Difference]: With dead ends: 158 [2021-10-08 15:51:30,255 INFO L226 Difference]: Without dead ends: 158 [2021-10-08 15:51:30,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-08 15:51:30,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-08 15:51:30,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-10-08 15:51:30,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 110 states have (on average 3.4272727272727272) internal successors, (377), 157 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 377 transitions. [2021-10-08 15:51:30,345 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 377 transitions. Word has length 3 [2021-10-08 15:51:30,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:30,346 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 377 transitions. [2021-10-08 15:51:30,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,347 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 377 transitions. [2021-10-08 15:51:30,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 15:51:30,347 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:30,348 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 15:51:30,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-08 15:51:30,349 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2021-10-08 15:51:30,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:30,350 INFO L82 PathProgramCache]: Analyzing trace with hash 525106, now seen corresponding path program 1 times [2021-10-08 15:51:30,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:30,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459808793] [2021-10-08 15:51:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:30,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:30,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:30,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459808793] [2021-10-08 15:51:30,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459808793] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:30,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:30,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 15:51:30,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239554284] [2021-10-08 15:51:30,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:51:30,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:30,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:51:30,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,456 INFO L87 Difference]: Start difference. First operand 158 states and 377 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:30,483 INFO L93 Difference]: Finished difference Result 94 states and 221 transitions. [2021-10-08 15:51:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:51:30,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 15:51:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:30,485 INFO L225 Difference]: With dead ends: 94 [2021-10-08 15:51:30,485 INFO L226 Difference]: Without dead ends: 94 [2021-10-08 15:51:30,486 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-10-08 15:51:30,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-10-08 15:51:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 70 states have (on average 3.157142857142857) internal successors, (221), 93 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 221 transitions. [2021-10-08 15:51:30,494 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 221 transitions. Word has length 3 [2021-10-08 15:51:30,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:30,494 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 221 transitions. [2021-10-08 15:51:30,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,495 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 221 transitions. [2021-10-08 15:51:30,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 15:51:30,495 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:30,496 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 15:51:30,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-08 15:51:30,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2021-10-08 15:51:30,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:30,497 INFO L82 PathProgramCache]: Analyzing trace with hash 525223, now seen corresponding path program 1 times [2021-10-08 15:51:30,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:30,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684803372] [2021-10-08 15:51:30,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:30,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:30,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:30,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:30,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684803372] [2021-10-08 15:51:30,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684803372] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:30,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:30,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 15:51:30,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602759445] [2021-10-08 15:51:30,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:51:30,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:30,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:51:30,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,542 INFO L87 Difference]: Start difference. First operand 94 states and 221 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:30,562 INFO L93 Difference]: Finished difference Result 158 states and 386 transitions. [2021-10-08 15:51:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:51:30,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 15:51:30,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:30,566 INFO L225 Difference]: With dead ends: 158 [2021-10-08 15:51:30,567 INFO L226 Difference]: Without dead ends: 158 [2021-10-08 15:51:30,567 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-08 15:51:30,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 108. [2021-10-08 15:51:30,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 84 states have (on average 3.6785714285714284) internal successors, (309), 107 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 309 transitions. [2021-10-08 15:51:30,578 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 309 transitions. Word has length 3 [2021-10-08 15:51:30,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:30,578 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 309 transitions. [2021-10-08 15:51:30,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,579 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 309 transitions. [2021-10-08 15:51:30,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-08 15:51:30,579 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:30,579 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-08 15:51:30,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-08 15:51:30,580 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2021-10-08 15:51:30,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:30,581 INFO L82 PathProgramCache]: Analyzing trace with hash 525226, now seen corresponding path program 1 times [2021-10-08 15:51:30,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:30,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413324859] [2021-10-08 15:51:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:30,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:30,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:30,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:30,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413324859] [2021-10-08 15:51:30,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413324859] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:30,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:30,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 15:51:30,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129429196] [2021-10-08 15:51:30,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:51:30,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:30,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:51:30,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,627 INFO L87 Difference]: Start difference. First operand 108 states and 309 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:30,674 INFO L93 Difference]: Finished difference Result 48 states and 111 transitions. [2021-10-08 15:51:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:51:30,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-08 15:51:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:30,676 INFO L225 Difference]: With dead ends: 48 [2021-10-08 15:51:30,676 INFO L226 Difference]: Without dead ends: 48 [2021-10-08 15:51:30,676 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-08 15:51:30,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-10-08 15:51:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 2.8461538461538463) internal successors, (111), 47 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 111 transitions. [2021-10-08 15:51:30,688 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 111 transitions. Word has length 3 [2021-10-08 15:51:30,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:30,688 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 111 transitions. [2021-10-08 15:51:30,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,689 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 111 transitions. [2021-10-08 15:51:30,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-08 15:51:30,690 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:30,690 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-08 15:51:30,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-08 15:51:30,690 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2021-10-08 15:51:30,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:30,691 INFO L82 PathProgramCache]: Analyzing trace with hash 16282337, now seen corresponding path program 1 times [2021-10-08 15:51:30,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:30,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566200438] [2021-10-08 15:51:30,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:30,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:30,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:30,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:30,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566200438] [2021-10-08 15:51:30,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566200438] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:30,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:30,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-08 15:51:30,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499947500] [2021-10-08 15:51:30,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:51:30,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:30,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:51:30,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,777 INFO L87 Difference]: Start difference. First operand 48 states and 111 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:30,797 INFO L93 Difference]: Finished difference Result 34 states and 83 transitions. [2021-10-08 15:51:30,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:51:30,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-08 15:51:30,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:30,799 INFO L225 Difference]: With dead ends: 34 [2021-10-08 15:51:30,799 INFO L226 Difference]: Without dead ends: 30 [2021-10-08 15:51:30,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-08 15:51:30,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-10-08 15:51:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 2.35) internal successors, (47), 23 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 47 transitions. [2021-10-08 15:51:30,803 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 47 transitions. Word has length 4 [2021-10-08 15:51:30,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:30,806 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 47 transitions. [2021-10-08 15:51:30,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,806 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 47 transitions. [2021-10-08 15:51:30,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-08 15:51:30,807 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:30,807 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-08 15:51:30,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-08 15:51:30,810 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2021-10-08 15:51:30,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:30,811 INFO L82 PathProgramCache]: Analyzing trace with hash 504784074, now seen corresponding path program 1 times [2021-10-08 15:51:30,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:30,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883426901] [2021-10-08 15:51:30,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:30,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:30,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:30,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:30,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883426901] [2021-10-08 15:51:30,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883426901] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:30,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-08 15:51:30,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-08 15:51:30,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301874546] [2021-10-08 15:51:30,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:51:30,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:30,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:51:30,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,890 INFO L87 Difference]: Start difference. First operand 24 states and 47 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:30,896 INFO L93 Difference]: Finished difference Result 30 states and 61 transitions. [2021-10-08 15:51:30,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:51:30,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-08 15:51:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:30,897 INFO L225 Difference]: With dead ends: 30 [2021-10-08 15:51:30,897 INFO L226 Difference]: Without dead ends: 30 [2021-10-08 15:51:30,898 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-08 15:51:30,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-08 15:51:30,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-08 15:51:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 29 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 61 transitions. [2021-10-08 15:51:30,901 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 61 transitions. Word has length 5 [2021-10-08 15:51:30,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:30,902 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 61 transitions. [2021-10-08 15:51:30,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:30,902 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 61 transitions. [2021-10-08 15:51:30,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-08 15:51:30,903 INFO L504 BasicCegarLoop]: Found error trace [2021-10-08 15:51:30,903 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-08 15:51:30,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-08 15:51:30,904 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2021-10-08 15:51:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-08 15:51:30,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1531562356, now seen corresponding path program 1 times [2021-10-08 15:51:30,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-08 15:51:30,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28813973] [2021-10-08 15:51:30,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:30,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-08 15:51:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:30,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:30,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-08 15:51:30,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28813973] [2021-10-08 15:51:30,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28813973] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-08 15:51:30,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118557218] [2021-10-08 15:51:30,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-08 15:51:30,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:30,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-08 15:51:30,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-08 15:51:31,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-08 15:51:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-08 15:51:31,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-08 15:51:31,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-08 15:51:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-08 15:51:31,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118557218] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-08 15:51:31,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-08 15:51:31,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2021-10-08 15:51:31,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006488250] [2021-10-08 15:51:31,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-08 15:51:31,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-08 15:51:31,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-08 15:51:31,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:51:31,169 INFO L87 Difference]: Start difference. First operand 30 states and 61 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:31,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-08 15:51:31,185 INFO L93 Difference]: Finished difference Result 18 states and 38 transitions. [2021-10-08 15:51:31,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-08 15:51:31,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-08 15:51:31,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-08 15:51:31,187 INFO L225 Difference]: With dead ends: 18 [2021-10-08 15:51:31,190 INFO L226 Difference]: Without dead ends: 0 [2021-10-08 15:51:31,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-08 15:51:31,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-08 15:51:31,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-08 15:51:31,192 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) [2021-10-08 15:51:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-08 15:51:31,192 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-08 15:51:31,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-08 15:51:31,193 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-08 15:51:31,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-08 15:51:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-08 15:51:31,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-08 15:51:31,203 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,204 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,205 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,207 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,210 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,210 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,211 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,211 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,211 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,211 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,211 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,212 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,212 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,212 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,212 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,212 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,213 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,216 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,217 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,217 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-08 15:51:31,217 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-08 15:51:31,217 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,218 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,218 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,219 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,220 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,221 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,221 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,221 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,222 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,222 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,222 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,223 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,223 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,223 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,224 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-08 15:51:31,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-08 15:51:31,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-08 15:51:31,446 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-08 15:51:31,447 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-08 15:51:31,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 03:51:31 BasicIcfg [2021-10-08 15:51:31,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-08 15:51:31,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-08 15:51:31,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-08 15:51:31,450 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-08 15:51:31,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 03:51:24" (3/4) ... [2021-10-08 15:51:31,454 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-08 15:51:31,461 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-08 15:51:31,461 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-08 15:51:31,470 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-08 15:51:31,472 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-08 15:51:31,473 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 15:51:31,473 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-08 15:51:31,548 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c-witness.graphml [2021-10-08 15:51:31,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-08 15:51:31,551 INFO L168 Benchmark]: Toolchain (without parser) took 8641.90 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 125.8 MB in the beginning and 107.0 MB in the end (delta: 18.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 8.0 GB. [2021-10-08 15:51:31,551 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-08 15:51:31,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.10 ms. Allocated memory is still 152.0 MB. Free memory was 125.4 MB in the beginning and 115.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-08 15:51:31,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.63 ms. Allocated memory is still 152.0 MB. Free memory was 115.1 MB in the beginning and 113.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:51:31,553 INFO L168 Benchmark]: Boogie Preprocessor took 62.99 ms. Allocated memory is still 152.0 MB. Free memory was 113.6 MB in the beginning and 112.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-08 15:51:31,554 INFO L168 Benchmark]: RCFGBuilder took 1058.85 ms. Allocated memory is still 152.0 MB. Free memory was 112.4 MB in the beginning and 123.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 19.6 MB. Max. memory is 8.0 GB. [2021-10-08 15:51:31,555 INFO L168 Benchmark]: TraceAbstraction took 6851.95 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 123.0 MB in the beginning and 110.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 8.0 GB. [2021-10-08 15:51:31,555 INFO L168 Benchmark]: Witness Printer took 98.73 ms. Allocated memory is still 182.5 MB. Free memory was 110.2 MB in the beginning and 107.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-08 15:51:31,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 472.10 ms. Allocated memory is still 152.0 MB. Free memory was 125.4 MB in the beginning and 115.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 75.63 ms. Allocated memory is still 152.0 MB. Free memory was 115.1 MB in the beginning and 113.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.99 ms. Allocated memory is still 152.0 MB. Free memory was 113.6 MB in the beginning and 112.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1058.85 ms. Allocated memory is still 152.0 MB. Free memory was 112.4 MB in the beginning and 123.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 19.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6851.95 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 123.0 MB in the beginning and 110.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 8.0 GB. * Witness Printer took 98.73 ms. Allocated memory is still 182.5 MB. Free memory was 110.2 MB in the beginning and 107.0 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: 5071.1ms, 109 PlacesBefore, 40 PlacesAfterwards, 109 TransitionsBefore, 35 TransitionsAfterwards, 1188 CoEnabledTransitionPairs, 6 FixpointIterations, 52 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 6 ConcurrentYvCompositions, 5 ChoiceCompositions, 125 TotalNumberOfCompositions, 1867 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1867, positive: 1867, positive conditional: 0, positive unconditional: 1867, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 588, positive: 588, positive conditional: 0, positive unconditional: 588, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 588, positive: 588, positive conditional: 0, positive unconditional: 588, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1867, positive: 1279, positive conditional: 0, positive unconditional: 1279, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 588, unknown conditional: 0, unknown unconditional: 588] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: 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: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: 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, 139 locations, 42 error locations. Started 1 CEGAR loops. OverallTime: 6694.3ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 17.6ms, AutomataDifference: 280.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5154.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 91 SDtfs, 63 SDslu, 26 SDs, 0 SdLazy, 46 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 106.7ms AutomataMinimizationTime, 7 MinimizatonAttempts, 56 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 35.7ms SsaConstructionTime, 178.0ms SatisfiabilityAnalysisTime, 384.6ms InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 2/3 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 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-08 15:51:31,615 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...