/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 12:11:09,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 12:11:09,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 12:11:09,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 12:11:09,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 12:11:09,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 12:11:09,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 12:11:09,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 12:11:09,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 12:11:09,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 12:11:09,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 12:11:09,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 12:11:09,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 12:11:09,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 12:11:09,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 12:11:09,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 12:11:09,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 12:11:09,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 12:11:09,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 12:11:09,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 12:11:09,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 12:11:09,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 12:11:09,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 12:11:09,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 12:11:09,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 12:11:09,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 12:11:09,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 12:11:09,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 12:11:09,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 12:11:09,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 12:11:09,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 12:11:09,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 12:11:09,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 12:11:09,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 12:11:09,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 12:11:09,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 12:11:09,108 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-Hitting.epf [2021-08-13 12:11:09,131 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 12:11:09,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 12:11:09,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 12:11:09,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 12:11:09,132 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 12:11:09,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 12:11:09,133 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 12:11:09,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 12:11:09,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 12:11:09,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 12:11:09,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 12:11:09,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 12:11:09,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 12:11:09,134 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 12:11:09,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 12:11:09,134 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 12:11:09,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 12:11:09,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 12:11:09,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 12:11:09,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 12:11:09,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 12:11:09,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 12:11:09,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 12:11:09,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 12:11:09,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 12:11:09,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 12:11:09,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 12:11:09,135 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 12:11:09,135 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 12:11:09,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 12:11:09,136 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 12:11:09,136 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 12:11:09,136 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 12:11:09,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 12:11:09,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 12:11:09,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 12:11:09,446 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 12:11:09,446 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 12:11:09,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-08-13 12:11:09,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/344ffd83b/7de48f6a20cd42039d0520f21e8f4089/FLAGd6e405fc0 [2021-08-13 12:11:09,920 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 12:11:09,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-08-13 12:11:09,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/344ffd83b/7de48f6a20cd42039d0520f21e8f4089/FLAGd6e405fc0 [2021-08-13 12:11:10,252 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/344ffd83b/7de48f6a20cd42039d0520f21e8f4089 [2021-08-13 12:11:10,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 12:11:10,256 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 12:11:10,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 12:11:10,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 12:11:10,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 12:11:10,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:10,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e9a681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10, skipping insertion in model container [2021-08-13 12:11:10,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:10,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 12:11:10,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 12:11:10,745 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-08-13 12:11:10,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 12:11:10,765 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 12:11:10,808 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-08-13 12:11:10,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 12:11:10,983 INFO L208 MainTranslator]: Completed translation [2021-08-13 12:11:10,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10 WrapperNode [2021-08-13 12:11:10,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 12:11:10,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 12:11:10,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 12:11:10,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 12:11:10,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:11,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:11,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 12:11:11,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 12:11:11,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 12:11:11,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 12:11:11,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:11,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:11,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:11,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:11,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:11,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:11,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (1/1) ... [2021-08-13 12:11:11,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 12:11:11,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 12:11:11,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 12:11:11,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 12:11:11,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-08-13 12:11:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 12:11:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 12:11:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 12:11:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-13 12:11:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-13 12:11:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-13 12:11:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 12:11:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 12:11:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 12:11:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-13 12:11:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-13 12:11:11,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 12:11:11,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 12:11:11,128 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 12:11:11,610 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 12:11:11,611 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-08-13 12:11:11,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:11:11 BoogieIcfgContainer [2021-08-13 12:11:11,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 12:11:11,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 12:11:11,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 12:11:11,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 12:11:11,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 12:11:10" (1/3) ... [2021-08-13 12:11:11,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d05ba77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:11:11, skipping insertion in model container [2021-08-13 12:11:11,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 12:11:10" (2/3) ... [2021-08-13 12:11:11,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d05ba77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:11:11, skipping insertion in model container [2021-08-13 12:11:11,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:11:11" (3/3) ... [2021-08-13 12:11:11,617 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-08-13 12:11:11,620 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 12:11:11,620 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-13 12:11:11,621 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 12:11:11,638 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,639 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,639 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,639 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,639 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,640 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,640 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,640 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,640 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,641 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,641 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,641 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,641 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,641 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,642 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,644 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,644 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,645 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,645 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,646 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 12:11:11,652 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-08-13 12:11:11,669 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-13 12:11:11,681 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 12:11:11,681 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 12:11:11,681 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 12:11:11,681 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 12:11:11,681 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 12:11:11,681 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 12:11:11,681 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 12:11:11,682 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 12:11:11,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 90 transitions, 188 flow [2021-08-13 12:11:11,719 INFO L129 PetriNetUnfolder]: 4/104 cut-off events. [2021-08-13 12:11:11,719 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-13 12:11:11,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 104 events. 4/104 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 156 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2021-08-13 12:11:11,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 90 transitions, 188 flow [2021-08-13 12:11:11,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 79 transitions, 164 flow [2021-08-13 12:11:11,729 INFO L129 PetriNetUnfolder]: 0/28 cut-off events. [2021-08-13 12:11:11,729 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 12:11:11,729 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:11:11,730 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:11:11,730 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 12:11:11,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:11:11,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1201753634, now seen corresponding path program 1 times [2021-08-13 12:11:11,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:11:11,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868523668] [2021-08-13 12:11:11,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:11:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:11:11,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:11,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:11:11,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:11,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:11:11,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:11,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 12:11:11,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:11,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 12:11:11,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:11,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:11:11,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:11:11,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:11:11,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868523668] [2021-08-13 12:11:11,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868523668] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:11:11,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:11:11,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 12:11:11,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304335429] [2021-08-13 12:11:12,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 12:11:12,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:11:12,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 12:11:12,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 12:11:12,030 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2021-08-13 12:11:12,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:11:12,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2021-08-13 12:11:12,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:11:12,129 INFO L129 PetriNetUnfolder]: 3/90 cut-off events. [2021-08-13 12:11:12,129 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-13 12:11:12,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 90 events. 3/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 106 event pairs, 0 based on Foata normal form. 1/86 useless extension candidates. Maximal degree in co-relation 37. Up to 12 conditions per place. [2021-08-13 12:11:12,130 INFO L132 encePairwiseOnDemand]: 75/90 looper letters, 13 selfloop transitions, 13 changer transitions 1/79 dead transitions. [2021-08-13 12:11:12,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 218 flow [2021-08-13 12:11:12,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 12:11:12,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 12:11:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 456 transitions. [2021-08-13 12:11:12,146 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2021-08-13 12:11:12,146 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 456 transitions. [2021-08-13 12:11:12,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 456 transitions. [2021-08-13 12:11:12,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:11:12,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 456 transitions. [2021-08-13 12:11:12,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,161 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,162 INFO L348 CegarLoopForPetriNet]: 80 programPoint places, 2 predicate places. [2021-08-13 12:11:12,162 INFO L482 AbstractCegarLoop]: Abstraction has has 82 places, 79 transitions, 218 flow [2021-08-13 12:11:12,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,162 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:11:12,163 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:11:12,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 12:11:12,164 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 12:11:12,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:11:12,167 INFO L82 PathProgramCache]: Analyzing trace with hash 57513541, now seen corresponding path program 1 times [2021-08-13 12:11:12,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:11:12,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167477036] [2021-08-13 12:11:12,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:11:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:11:12,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:12,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:11:12,260 INFO L142 QuantifierPusher]: treesize reduction 11, result has 21.4 percent of original size [2021-08-13 12:11:12,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:11:12,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:12,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 12:11:12,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:12,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-08-13 12:11:12,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:12,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:11:12,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:11:12,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:11:12,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167477036] [2021-08-13 12:11:12,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167477036] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:11:12,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:11:12,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 12:11:12,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990456404] [2021-08-13 12:11:12,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 12:11:12,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:11:12,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 12:11:12,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 12:11:12,280 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2021-08-13 12:11:12,281 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 79 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,281 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:11:12,281 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2021-08-13 12:11:12,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:11:12,367 INFO L129 PetriNetUnfolder]: 3/88 cut-off events. [2021-08-13 12:11:12,367 INFO L130 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2021-08-13 12:11:12,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 88 events. 3/88 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 47. Up to 13 conditions per place. [2021-08-13 12:11:12,369 INFO L132 encePairwiseOnDemand]: 79/90 looper letters, 15 selfloop transitions, 11 changer transitions 1/78 dead transitions. [2021-08-13 12:11:12,369 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 78 transitions, 270 flow [2021-08-13 12:11:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 12:11:12,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 12:11:12,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 453 transitions. [2021-08-13 12:11:12,371 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.719047619047619 [2021-08-13 12:11:12,371 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 453 transitions. [2021-08-13 12:11:12,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 453 transitions. [2021-08-13 12:11:12,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:11:12,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 453 transitions. [2021-08-13 12:11:12,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,374 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,375 INFO L348 CegarLoopForPetriNet]: 80 programPoint places, 6 predicate places. [2021-08-13 12:11:12,375 INFO L482 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 270 flow [2021-08-13 12:11:12,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,375 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:11:12,376 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:11:12,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 12:11:12,376 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 12:11:12,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:11:12,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1699842851, now seen corresponding path program 1 times [2021-08-13 12:11:12,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:11:12,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792812025] [2021-08-13 12:11:12,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:11:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:11:12,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:12,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:11:12,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:12,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 12:11:12,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:12,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-08-13 12:11:12,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:12,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:11:12,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:11:12,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:11:12,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792812025] [2021-08-13 12:11:12,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792812025] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:11:12,451 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:11:12,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-13 12:11:12,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950591477] [2021-08-13 12:11:12,451 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-08-13 12:11:12,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:11:12,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-13 12:11:12,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-13 12:11:12,452 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2021-08-13 12:11:12,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:11:12,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2021-08-13 12:11:12,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:11:12,472 INFO L129 PetriNetUnfolder]: 3/80 cut-off events. [2021-08-13 12:11:12,472 INFO L130 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2021-08-13 12:11:12,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 80 events. 3/80 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 61. Up to 12 conditions per place. [2021-08-13 12:11:12,473 INFO L132 encePairwiseOnDemand]: 87/90 looper letters, 7 selfloop transitions, 0 changer transitions 10/77 dead transitions. [2021-08-13 12:11:12,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 77 transitions, 276 flow [2021-08-13 12:11:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-13 12:11:12,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-08-13 12:11:12,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2021-08-13 12:11:12,475 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8527777777777777 [2021-08-13 12:11:12,475 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 307 transitions. [2021-08-13 12:11:12,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 307 transitions. [2021-08-13 12:11:12,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:11:12,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 307 transitions. [2021-08-13 12:11:12,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,477 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,477 INFO L348 CegarLoopForPetriNet]: 80 programPoint places, 9 predicate places. [2021-08-13 12:11:12,478 INFO L482 AbstractCegarLoop]: Abstraction has has 89 places, 77 transitions, 276 flow [2021-08-13 12:11:12,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,478 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:11:12,478 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:11:12,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 12:11:12,478 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 12:11:12,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:11:12,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1707895459, now seen corresponding path program 1 times [2021-08-13 12:11:12,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:11:12,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754985401] [2021-08-13 12:11:12,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:11:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:11:12,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:12,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:11:12,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:11:12,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:11:12,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:11:12,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:11:12,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754985401] [2021-08-13 12:11:12,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754985401] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:11:12,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:11:12,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-13 12:11:12,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129375468] [2021-08-13 12:11:12,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:11:12,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:11:12,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:11:12,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:11:12,520 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 90 [2021-08-13 12:11:12,520 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 77 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,520 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:11:12,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 90 [2021-08-13 12:11:12,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:11:12,558 INFO L129 PetriNetUnfolder]: 2/90 cut-off events. [2021-08-13 12:11:12,559 INFO L130 PetriNetUnfolder]: For 28/34 co-relation queries the response was YES. [2021-08-13 12:11:12,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 90 events. 2/90 cut-off events. For 28/34 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 84. Up to 13 conditions per place. [2021-08-13 12:11:12,559 INFO L132 encePairwiseOnDemand]: 85/90 looper letters, 8 selfloop transitions, 6 changer transitions 10/78 dead transitions. [2021-08-13 12:11:12,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 78 transitions, 314 flow [2021-08-13 12:11:12,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:11:12,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:11:12,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2021-08-13 12:11:12,565 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2021-08-13 12:11:12,565 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2021-08-13 12:11:12,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2021-08-13 12:11:12,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:11:12,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2021-08-13 12:11:12,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,567 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,567 INFO L348 CegarLoopForPetriNet]: 80 programPoint places, 11 predicate places. [2021-08-13 12:11:12,567 INFO L482 AbstractCegarLoop]: Abstraction has has 91 places, 78 transitions, 314 flow [2021-08-13 12:11:12,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:11:12,568 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:11:12,568 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:11:12,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 12:11:12,568 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 12:11:12,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:11:12,569 INFO L82 PathProgramCache]: Analyzing trace with hash -268459697, now seen corresponding path program 1 times [2021-08-13 12:11:12,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:11:12,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011985978] [2021-08-13 12:11:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:11:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 12:11:12,602 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 12:11:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 12:11:12,622 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 12:11:12,662 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 12:11:12,662 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 12:11:12,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 12:11:12,664 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 12:11:12,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 12:11:12 BasicIcfg [2021-08-13 12:11:12,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 12:11:12,713 INFO L168 Benchmark]: Toolchain (without parser) took 2457.09 ms. Allocated memory was 189.8 MB in the beginning and 228.6 MB in the end (delta: 38.8 MB). Free memory was 152.3 MB in the beginning and 191.4 MB in the end (delta: -39.1 MB). Peak memory consumption was 105.7 MB. Max. memory is 8.0 GB. [2021-08-13 12:11:12,714 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 189.8 MB. Free memory is still 171.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 12:11:12,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.21 ms. Allocated memory was 189.8 MB in the beginning and 228.6 MB in the end (delta: 38.8 MB). Free memory was 152.1 MB in the beginning and 194.3 MB in the end (delta: -42.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 8.0 GB. [2021-08-13 12:11:12,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.71 ms. Allocated memory is still 228.6 MB. Free memory was 194.3 MB in the beginning and 191.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-13 12:11:12,715 INFO L168 Benchmark]: Boogie Preprocessor took 25.14 ms. Allocated memory is still 228.6 MB. Free memory was 191.2 MB in the beginning and 189.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-13 12:11:12,715 INFO L168 Benchmark]: RCFGBuilder took 543.51 ms. Allocated memory is still 228.6 MB. Free memory was 188.6 MB in the beginning and 147.7 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2021-08-13 12:11:12,715 INFO L168 Benchmark]: TraceAbstraction took 1099.86 ms. Allocated memory is still 228.6 MB. Free memory was 147.2 MB in the beginning and 191.4 MB in the end (delta: -44.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 8.0 GB. [2021-08-13 12:11:12,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 189.8 MB. Free memory is still 171.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 725.21 ms. Allocated memory was 189.8 MB in the beginning and 228.6 MB in the end (delta: 38.8 MB). Free memory was 152.1 MB in the beginning and 194.3 MB in the end (delta: -42.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.71 ms. Allocated memory is still 228.6 MB. Free memory was 194.3 MB in the beginning and 191.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.14 ms. Allocated memory is still 228.6 MB. Free memory was 191.2 MB in the beginning and 189.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 543.51 ms. Allocated memory is still 228.6 MB. Free memory was 188.6 MB in the beginning and 147.7 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1099.86 ms. Allocated memory is still 228.6 MB. Free memory was 147.2 MB in the beginning and 191.4 MB in the end (delta: -44.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={7:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={9:0}, t1={7:0}] [L1698] 0 int pdev; VAL [mutex={9:0}, pdev=0, t1={7:0}] [L1709] 0 pdev = 1 VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1695] COND FALSE 0 !(!expression) VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1713] 0 return 0; VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1734] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1721] 0 void *status; VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1723] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=4, t1={7:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 95 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 984.5ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 307.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 43.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 56 SDtfs, 40 SDslu, 45 SDs, 0 SdLazy, 77 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 65.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 69.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.1ms SsaConstructionTime, 82.8ms SatisfiabilityAnalysisTime, 270.7ms InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 incorrect! Received shutdown request...