/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-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:05:20,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:05:20,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:05:20,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:05:20,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:05:20,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:05:20,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:05:20,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:05:20,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:05:20,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:05:20,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:05:20,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:05:20,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:05:20,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:05:20,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:05:20,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:05:20,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:05:20,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:05:20,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:05:20,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:05:20,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:05:20,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:05:20,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:05:20,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:05:20,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:05:20,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:05:20,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:05:20,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:05:20,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:05:20,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:05:20,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:05:20,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:05:20,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:05:20,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:05:20,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:05:20,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:05:20,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:05:20,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:05:20,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:05:20,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:05:20,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:05:20,856 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 13:05:20,911 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:05:20,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:05:20,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:05:20,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:05:20,917 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:05:20,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:05:20,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:05:20,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:05:20,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:05:20,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:05:20,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:05:20,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:05:20,920 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:05:20,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:05:20,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:05:20,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:05:20,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:05:20,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:05:20,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:05:20,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:05:20,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:05:20,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:05:20,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:05:20,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:05:20,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:05:20,922 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:05:21,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:05:21,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:05:21,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:05:21,413 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:05:21,414 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:05:21,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sync01.i [2020-12-23 13:05:21,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d5900d1a2/2aa2189d8b1a4730b25539b2bd84541e/FLAG4cb5575cf [2020-12-23 13:05:22,243 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:05:22,244 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread/sync01.i [2020-12-23 13:05:22,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d5900d1a2/2aa2189d8b1a4730b25539b2bd84541e/FLAG4cb5575cf [2020-12-23 13:05:22,516 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d5900d1a2/2aa2189d8b1a4730b25539b2bd84541e [2020-12-23 13:05:22,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:05:22,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:05:22,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:05:22,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:05:22,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:05:22,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:05:22" (1/1) ... [2020-12-23 13:05:22,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed8691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:22, skipping insertion in model container [2020-12-23 13:05:22,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:05:22" (1/1) ... [2020-12-23 13:05:22,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:05:22,631 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~num~0,GLOBAL] [2020-12-23 13:05:23,275 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2020-12-23 13:05:23,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:05:23,298 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~num~0,GLOBAL] [2020-12-23 13:05:23,351 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread/sync01.i[42004,42017] [2020-12-23 13:05:23,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:05:23,538 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:05:23,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23 WrapperNode [2020-12-23 13:05:23,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:05:23,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:05:23,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:05:23,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:05:23,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (1/1) ... [2020-12-23 13:05:23,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (1/1) ... [2020-12-23 13:05:23,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:05:23,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:05:23,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:05:23,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:05:23,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (1/1) ... [2020-12-23 13:05:23,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (1/1) ... [2020-12-23 13:05:23,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (1/1) ... [2020-12-23 13:05:23,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (1/1) ... [2020-12-23 13:05:23,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (1/1) ... [2020-12-23 13:05:23,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (1/1) ... [2020-12-23 13:05:23,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (1/1) ... [2020-12-23 13:05:23,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:05:23,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:05:23,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:05:23,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:05:23,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:05:23,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:05:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:05:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 13:05:23,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-12-23 13:05:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-12-23 13:05:23,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-12-23 13:05:23,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-12-23 13:05:23,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:05:23,788 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-23 13:05:23,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:05:23,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:05:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:05:23,794 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-23 13:05:24,317 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:05:24,317 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-23 13:05:24,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:05:24 BoogieIcfgContainer [2020-12-23 13:05:24,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:05:24,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:05:24,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:05:24,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:05:24,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:05:22" (1/3) ... [2020-12-23 13:05:24,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522bc7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:05:24, skipping insertion in model container [2020-12-23 13:05:24,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:05:23" (2/3) ... [2020-12-23 13:05:24,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522bc7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:05:24, skipping insertion in model container [2020-12-23 13:05:24,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:05:24" (3/3) ... [2020-12-23 13:05:24,330 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2020-12-23 13:05:24,338 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:05:24,338 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:05:24,344 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:05:24,346 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:05:24,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,384 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,385 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,385 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,388 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,388 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,388 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,389 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,389 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,389 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,390 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,390 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,390 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,391 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,391 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,392 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,392 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,392 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,393 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,393 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,393 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,393 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,394 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,394 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,395 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,396 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,397 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,398 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,399 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,402 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,402 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,403 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,403 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,404 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,410 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,411 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,411 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,411 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,411 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,412 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:05:24,420 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-12-23 13:05:24,443 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-23 13:05:24,480 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:05:24,480 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:05:24,480 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:05:24,481 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:05:24,481 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:05:24,482 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:05:24,482 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:05:24,482 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:05:24,507 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:05:24,510 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 96 transitions, 214 flow [2020-12-23 13:05:24,516 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 96 transitions, 214 flow [2020-12-23 13:05:24,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 96 transitions, 214 flow [2020-12-23 13:05:24,635 INFO L129 PetriNetUnfolder]: 6/96 cut-off events. [2020-12-23 13:05:24,637 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-12-23 13:05:24,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 96 events. 6/96 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2020-12-23 13:05:24,651 INFO L116 LiptonReduction]: Number of co-enabled transitions 840 [2020-12-23 13:05:28,321 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-23 13:05:28,477 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-23 13:05:29,287 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 13:05:29,405 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-23 13:05:29,536 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-12-23 13:05:29,669 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-12-23 13:05:29,996 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-12-23 13:05:30,283 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-12-23 13:05:30,594 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-12-23 13:05:30,888 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-12-23 13:05:32,035 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 181 DAG size of output: 171 [2020-12-23 13:05:32,667 WARN L197 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-12-23 13:05:33,781 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 181 DAG size of output: 171 [2020-12-23 13:05:34,317 WARN L197 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-12-23 13:05:34,326 INFO L131 LiptonReduction]: Checked pairs total: 3852 [2020-12-23 13:05:34,326 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-12-23 13:05:34,334 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 34 transitions, 90 flow [2020-12-23 13:05:34,356 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-12-23 13:05:34,359 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-12-23 13:05:34,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:05:34,371 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:05:34,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:05:34,373 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:05:34,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:05:34,380 INFO L82 PathProgramCache]: Analyzing trace with hash -308904977, now seen corresponding path program 1 times [2020-12-23 13:05:34,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:05:34,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76509418] [2020-12-23 13:05:34,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:05:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:05:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:05:34,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76509418] [2020-12-23 13:05:34,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:05:34,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:05:34,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095049939] [2020-12-23 13:05:34,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 13:05:34,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:05:34,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 13:05:34,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:05:34,695 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 2 states. [2020-12-23 13:05:34,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:05:34,721 INFO L93 Difference]: Finished difference Result 198 states and 455 transitions. [2020-12-23 13:05:34,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 13:05:34,723 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-12-23 13:05:34,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:05:34,739 INFO L225 Difference]: With dead ends: 198 [2020-12-23 13:05:34,739 INFO L226 Difference]: Without dead ends: 197 [2020-12-23 13:05:34,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 13:05:34,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-12-23 13:05:34,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-12-23 13:05:34,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-12-23 13:05:34,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 454 transitions. [2020-12-23 13:05:34,824 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 454 transitions. Word has length 15 [2020-12-23 13:05:34,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:05:34,824 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 454 transitions. [2020-12-23 13:05:34,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 13:05:34,825 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 454 transitions. [2020-12-23 13:05:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:05:34,830 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:05:34,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:05:34,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:05:34,830 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:05:34,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:05:34,835 INFO L82 PathProgramCache]: Analyzing trace with hash 206914780, now seen corresponding path program 1 times [2020-12-23 13:05:34,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:05:34,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257237255] [2020-12-23 13:05:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:05:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:05:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:05:34,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257237255] [2020-12-23 13:05:34,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:05:34,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:05:34,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519540574] [2020-12-23 13:05:34,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:05:34,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:05:34,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:05:34,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:05:34,964 INFO L87 Difference]: Start difference. First operand 197 states and 454 transitions. Second operand 3 states. [2020-12-23 13:05:34,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:05:34,999 INFO L93 Difference]: Finished difference Result 107 states and 223 transitions. [2020-12-23 13:05:34,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:05:35,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-23 13:05:35,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:05:35,001 INFO L225 Difference]: With dead ends: 107 [2020-12-23 13:05:35,001 INFO L226 Difference]: Without dead ends: 107 [2020-12-23 13:05:35,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:05:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-23 13:05:35,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-12-23 13:05:35,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-23 13:05:35,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 223 transitions. [2020-12-23 13:05:35,017 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 223 transitions. Word has length 21 [2020-12-23 13:05:35,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:05:35,017 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 223 transitions. [2020-12-23 13:05:35,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:05:35,018 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 223 transitions. [2020-12-23 13:05:35,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:05:35,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:05:35,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:05:35,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:05:35,020 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:05:35,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:05:35,021 INFO L82 PathProgramCache]: Analyzing trace with hash 657978938, now seen corresponding path program 2 times [2020-12-23 13:05:35,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:05:35,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212931844] [2020-12-23 13:05:35,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:05:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:05:35,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:05:35,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212931844] [2020-12-23 13:05:35,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:05:35,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:05:35,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179446957] [2020-12-23 13:05:35,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:05:35,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:05:35,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:05:35,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:05:35,096 INFO L87 Difference]: Start difference. First operand 107 states and 223 transitions. Second operand 3 states. [2020-12-23 13:05:35,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:05:35,127 INFO L93 Difference]: Finished difference Result 80 states and 137 transitions. [2020-12-23 13:05:35,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:05:35,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-23 13:05:35,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:05:35,129 INFO L225 Difference]: With dead ends: 80 [2020-12-23 13:05:35,129 INFO L226 Difference]: Without dead ends: 80 [2020-12-23 13:05:35,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:05:35,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-23 13:05:35,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-23 13:05:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-23 13:05:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 137 transitions. [2020-12-23 13:05:35,138 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 137 transitions. Word has length 21 [2020-12-23 13:05:35,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:05:35,139 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 137 transitions. [2020-12-23 13:05:35,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:05:35,139 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 137 transitions. [2020-12-23 13:05:35,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:05:35,140 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:05:35,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:05:35,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:05:35,141 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:05:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:05:35,145 INFO L82 PathProgramCache]: Analyzing trace with hash -688315250, now seen corresponding path program 1 times [2020-12-23 13:05:35,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:05:35,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343772916] [2020-12-23 13:05:35,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:05:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:05:35,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:05:35,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343772916] [2020-12-23 13:05:35,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:05:35,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 13:05:35,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547687080] [2020-12-23 13:05:35,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:05:35,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:05:35,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:05:35,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:05:35,322 INFO L87 Difference]: Start difference. First operand 80 states and 137 transitions. Second operand 7 states. [2020-12-23 13:05:35,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:05:35,451 INFO L93 Difference]: Finished difference Result 80 states and 136 transitions. [2020-12-23 13:05:35,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 13:05:35,452 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-12-23 13:05:35,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:05:35,453 INFO L225 Difference]: With dead ends: 80 [2020-12-23 13:05:35,453 INFO L226 Difference]: Without dead ends: 56 [2020-12-23 13:05:35,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:05:35,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-23 13:05:35,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-12-23 13:05:35,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-23 13:05:35,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 88 transitions. [2020-12-23 13:05:35,458 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 88 transitions. Word has length 21 [2020-12-23 13:05:35,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:05:35,458 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 88 transitions. [2020-12-23 13:05:35,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:05:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 88 transitions. [2020-12-23 13:05:35,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:05:35,460 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:05:35,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:05:35,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:05:35,460 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:05:35,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:05:35,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1906534828, now seen corresponding path program 3 times [2020-12-23 13:05:35,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:05:35,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323790279] [2020-12-23 13:05:35,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:05:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:05:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:05:35,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323790279] [2020-12-23 13:05:35,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:05:35,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 13:05:35,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779886976] [2020-12-23 13:05:35,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:05:35,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:05:35,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:05:35,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:05:35,632 INFO L87 Difference]: Start difference. First operand 56 states and 88 transitions. Second operand 7 states. [2020-12-23 13:05:35,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:05:35,697 INFO L93 Difference]: Finished difference Result 53 states and 82 transitions. [2020-12-23 13:05:35,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:05:35,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-12-23 13:05:35,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:05:35,698 INFO L225 Difference]: With dead ends: 53 [2020-12-23 13:05:35,699 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:05:35,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:05:35,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:05:35,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:05:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:05:35,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:05:35,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-12-23 13:05:35,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:05:35,700 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:05:35,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:05:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:05:35,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:05:35,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:05:35,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:05:35 BasicIcfg [2020-12-23 13:05:35,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:05:35,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:05:35,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:05:35,707 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:05:35,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:05:24" (3/4) ... [2020-12-23 13:05:35,711 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:05:35,719 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2020-12-23 13:05:35,719 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2020-12-23 13:05:35,724 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-23 13:05:35,725 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:05:35,725 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:05:35,725 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:05:35,772 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread/sync01.i-witness.graphml [2020-12-23 13:05:35,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:05:35,774 INFO L168 Benchmark]: Toolchain (without parser) took 13249.76 ms. Allocated memory was 160.4 MB in the beginning and 283.1 MB in the end (delta: 122.7 MB). Free memory was 133.7 MB in the beginning and 153.4 MB in the end (delta: -19.7 MB). Peak memory consumption was 104.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:05:35,774 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 160.4 MB. Free memory is still 134.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:05:35,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1011.42 ms. Allocated memory is still 160.4 MB. Free memory was 133.4 MB in the beginning and 113.8 MB in the end (delta: 19.6 MB). Peak memory consumption was 32.4 MB. Max. memory is 8.0 GB. [2020-12-23 13:05:35,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.06 ms. Allocated memory is still 160.4 MB. Free memory was 113.8 MB in the beginning and 111.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:05:35,776 INFO L168 Benchmark]: Boogie Preprocessor took 39.05 ms. Allocated memory is still 160.4 MB. Free memory was 111.6 MB in the beginning and 109.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:05:35,777 INFO L168 Benchmark]: RCFGBuilder took 679.36 ms. Allocated memory is still 160.4 MB. Free memory was 109.6 MB in the beginning and 83.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-12-23 13:05:35,778 INFO L168 Benchmark]: TraceAbstraction took 11384.51 ms. Allocated memory was 160.4 MB in the beginning and 283.1 MB in the end (delta: 122.7 MB). Free memory was 82.9 MB in the beginning and 156.0 MB in the end (delta: -73.1 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. [2020-12-23 13:05:35,778 INFO L168 Benchmark]: Witness Printer took 65.71 ms. Allocated memory is still 283.1 MB. Free memory was 156.0 MB in the beginning and 153.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:05:35,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 160.4 MB. Free memory is still 134.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1011.42 ms. Allocated memory is still 160.4 MB. Free memory was 133.4 MB in the beginning and 113.8 MB in the end (delta: 19.6 MB). Peak memory consumption was 32.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 59.06 ms. Allocated memory is still 160.4 MB. Free memory was 113.8 MB in the beginning and 111.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.05 ms. Allocated memory is still 160.4 MB. Free memory was 111.6 MB in the beginning and 109.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 679.36 ms. Allocated memory is still 160.4 MB. Free memory was 109.6 MB in the beginning and 83.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 11384.51 ms. Allocated memory was 160.4 MB in the beginning and 283.1 MB in the end (delta: 122.7 MB). Free memory was 82.9 MB in the beginning and 156.0 MB in the end (delta: -73.1 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. * Witness Printer took 65.71 ms. Allocated memory is still 283.1 MB. Free memory was 156.0 MB in the beginning and 153.4 MB in the end (delta: 2.6 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 590 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 21 SemBasedMoverChecksPositive, 41 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 166 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 9.8s, 96 PlacesBefore, 35 PlacesAfterwards, 96 TransitionsBefore, 34 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 73 TotalNumberOfCompositions, 3852 MoverChecksTotal - PositiveResult [Line: 966]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.8s, HoareTripleCheckerStatistics: 132 SDtfs, 97 SDslu, 131 SDs, 0 SdLazy, 97 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 5416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...