/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/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:15:29,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:15:29,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:15:29,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:15:29,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:15:29,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:15:29,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:15:29,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:15:29,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:15:29,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:15:29,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:15:29,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:15:29,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:15:29,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:15:29,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:15:29,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:15:29,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:15:29,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:15:29,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:15:29,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:15:29,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:15:29,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:15:29,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:15:29,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:15:29,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:15:29,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:15:29,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:15:29,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:15:29,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:15:29,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:15:29,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:15:29,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:15:29,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:15:29,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:15:29,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:15:29,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:15:29,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:15:29,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:15:29,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:15:29,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:15:29,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:15:29,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:15:29,776 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:15:29,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:15:29,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:15:29,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:15:29,778 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:15:29,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:15:29,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:15:29,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:15:29,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:15:29,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:15:29,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:15:29,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:15:29,780 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:15:29,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:15:29,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:15:29,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:15:29,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:15:29,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:15:29,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:15:29,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:15:29,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:15:29,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:15:29,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:15:29,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:15:29,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:15:29,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:15:30,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:15:30,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:15:30,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:15:30,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:15:30,215 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:15:30,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_2-join.i [2020-12-22 11:15:30,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db764f344/9395af77a8624922b8775cfe9f52468a/FLAG32afe2139 [2020-12-22 11:15:31,143 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:15:31,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_2-join.i [2020-12-22 11:15:31,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db764f344/9395af77a8624922b8775cfe9f52468a/FLAG32afe2139 [2020-12-22 11:15:31,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db764f344/9395af77a8624922b8775cfe9f52468a [2020-12-22 11:15:31,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:15:31,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:15:31,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:15:31,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:15:31,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:15:31,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:15:31" (1/1) ... [2020-12-22 11:15:31,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b293d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:31, skipping insertion in model container [2020-12-22 11:15:31,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:15:31" (1/1) ... [2020-12-22 11:15:31,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:15:31,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:15:32,400 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2020-12-22 11:15:32,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:15:32,434 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:15:32,493 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2020-12-22 11:15:32,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:15:33,036 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:15:33,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33 WrapperNode [2020-12-22 11:15:33,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:15:33,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:15:33,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:15:33,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:15:33,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (1/1) ... [2020-12-22 11:15:33,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (1/1) ... [2020-12-22 11:15:33,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:15:33,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:15:33,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:15:33,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:15:33,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (1/1) ... [2020-12-22 11:15:33,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (1/1) ... [2020-12-22 11:15:33,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (1/1) ... [2020-12-22 11:15:33,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (1/1) ... [2020-12-22 11:15:33,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (1/1) ... [2020-12-22 11:15:33,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (1/1) ... [2020-12-22 11:15:33,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (1/1) ... [2020-12-22 11:15:33,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:15:33,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:15:33,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:15:33,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:15:33,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (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 [2020-12-22 11:15:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:15:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:15:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:15:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:15:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-22 11:15:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:15:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:15:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:15:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:15:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-12-22 11:15:33,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-12-22 11:15:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:15:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:15:33,301 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:15:34,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:15:34,023 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-22 11:15:34,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:34 BoogieIcfgContainer [2020-12-22 11:15:34,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:15:34,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:15:34,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:15:34,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:15:34,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:15:31" (1/3) ... [2020-12-22 11:15:34,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ff4729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:15:34, skipping insertion in model container [2020-12-22 11:15:34,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:33" (2/3) ... [2020-12-22 11:15:34,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ff4729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:15:34, skipping insertion in model container [2020-12-22 11:15:34,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:34" (3/3) ... [2020-12-22 11:15:34,036 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2020-12-22 11:15:34,044 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:15:34,045 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:15:34,050 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-22 11:15:34,052 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:15:34,083 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,083 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,083 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,084 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,084 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,084 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,084 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,084 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,085 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,085 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,085 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,085 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,086 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,086 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,086 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,086 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,088 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,089 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,089 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,089 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,089 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,095 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-12-22 11:15:34,126 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-22 11:15:34,150 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:15:34,151 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:15:34,151 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:15:34,151 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:15:34,151 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:15:34,151 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:15:34,152 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:15:34,152 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:15:34,168 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:15:34,170 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 87 transitions, 182 flow [2020-12-22 11:15:34,174 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 87 transitions, 182 flow [2020-12-22 11:15:34,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 87 transitions, 182 flow [2020-12-22 11:15:34,223 INFO L129 PetriNetUnfolder]: 4/98 cut-off events. [2020-12-22 11:15:34,224 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-12-22 11:15:34,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 4/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 146 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2020-12-22 11:15:34,229 INFO L116 LiptonReduction]: Number of co-enabled transitions 238 [2020-12-22 11:15:36,875 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 11:15:37,885 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-22 11:15:38,235 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-22 11:15:39,029 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-22 11:15:39,191 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-12-22 11:15:39,386 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-22 11:15:39,540 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-22 11:15:39,780 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-22 11:15:39,988 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-12-22 11:15:40,444 WARN L197 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2020-12-22 11:15:40,671 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-12-22 11:15:41,042 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2020-12-22 11:15:41,207 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-22 11:15:41,653 WARN L197 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 118 [2020-12-22 11:15:41,877 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-22 11:15:41,880 INFO L131 LiptonReduction]: Checked pairs total: 302 [2020-12-22 11:15:41,881 INFO L133 LiptonReduction]: Total number of compositions: 102 [2020-12-22 11:15:41,888 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-12-22 11:15:41,896 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-12-22 11:15:41,898 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-12-22 11:15:41,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-12-22 11:15:41,903 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:41,904 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-12-22 11:15:41,904 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:41,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:41,911 INFO L82 PathProgramCache]: Analyzing trace with hash 357, now seen corresponding path program 1 times [2020-12-22 11:15:41,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:41,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248169756] [2020-12-22 11:15:41,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:42,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:15:42,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248169756] [2020-12-22 11:15:42,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:42,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-12-22 11:15:42,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059911140] [2020-12-22 11:15:42,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:15:42,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:42,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:15:42,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:15:42,281 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-12-22 11:15:42,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:42,296 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-12-22 11:15:42,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:15:42,298 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-12-22 11:15:42,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:42,307 INFO L225 Difference]: With dead ends: 18 [2020-12-22 11:15:42,307 INFO L226 Difference]: Without dead ends: 8 [2020-12-22 11:15:42,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:15:42,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-22 11:15:42,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-22 11:15:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-22 11:15:42,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2020-12-22 11:15:42,348 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 1 [2020-12-22 11:15:42,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:42,349 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-12-22 11:15:42,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:15:42,349 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-12-22 11:15:42,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-22 11:15:42,350 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:42,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-22 11:15:42,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:15:42,351 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:42,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:42,357 INFO L82 PathProgramCache]: Analyzing trace with hash 11013080, now seen corresponding path program 1 times [2020-12-22 11:15:42,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:42,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071246762] [2020-12-22 11:15:42,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:15:42,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071246762] [2020-12-22 11:15:42,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:42,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:15:42,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211532527] [2020-12-22 11:15:42,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:15:42,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:42,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:15:42,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:15:42,550 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2020-12-22 11:15:42,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:42,564 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-12-22 11:15:42,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:15:42,565 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-22 11:15:42,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:42,565 INFO L225 Difference]: With dead ends: 8 [2020-12-22 11:15:42,565 INFO L226 Difference]: Without dead ends: 6 [2020-12-22 11:15:42,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:15:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-12-22 11:15:42,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-12-22 11:15:42,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-12-22 11:15:42,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2020-12-22 11:15:42,569 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2020-12-22 11:15:42,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:42,569 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2020-12-22 11:15:42,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:15:42,570 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-12-22 11:15:42,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-22 11:15:42,573 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:42,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-22 11:15:42,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:15:42,574 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:42,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:42,574 INFO L82 PathProgramCache]: Analyzing trace with hash 341411049, now seen corresponding path program 1 times [2020-12-22 11:15:42,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:42,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776684318] [2020-12-22 11:15:42,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:15:42,614 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:15:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:15:42,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:15:42,704 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 11:15:42,705 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 11:15:42,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:15:42,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:15:42 BasicIcfg [2020-12-22 11:15:42,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:15:42,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:15:42,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:15:42,742 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:15:42,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:34" (3/4) ... [2020-12-22 11:15:42,748 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 11:15:42,810 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-races/race-1_2-join.i-witness.graphml [2020-12-22 11:15:42,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:15:42,812 INFO L168 Benchmark]: Toolchain (without parser) took 11503.01 ms. Allocated memory was 151.0 MB in the beginning and 275.8 MB in the end (delta: 124.8 MB). Free memory was 123.4 MB in the beginning and 99.2 MB in the end (delta: 24.2 MB). Peak memory consumption was 149.4 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:42,812 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 127.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:15:42,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1725.00 ms. Allocated memory was 151.0 MB in the beginning and 229.6 MB in the end (delta: 78.6 MB). Free memory was 123.2 MB in the beginning and 177.2 MB in the end (delta: -54.0 MB). Peak memory consumption was 66.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:42,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.66 ms. Allocated memory is still 229.6 MB. Free memory was 176.7 MB in the beginning and 174.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:42,814 INFO L168 Benchmark]: Boogie Preprocessor took 65.71 ms. Allocated memory is still 229.6 MB. Free memory was 174.1 MB in the beginning and 171.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:42,815 INFO L168 Benchmark]: RCFGBuilder took 838.56 ms. Allocated memory is still 229.6 MB. Free memory was 171.4 MB in the beginning and 130.5 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:42,816 INFO L168 Benchmark]: TraceAbstraction took 8710.04 ms. Allocated memory was 229.6 MB in the beginning and 275.8 MB in the end (delta: 46.1 MB). Free memory was 130.5 MB in the beginning and 101.8 MB in the end (delta: 28.7 MB). Peak memory consumption was 74.8 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:42,817 INFO L168 Benchmark]: Witness Printer took 68.32 ms. Allocated memory is still 275.8 MB. Free memory was 101.3 MB in the beginning and 99.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:42,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 127.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1725.00 ms. Allocated memory was 151.0 MB in the beginning and 229.6 MB in the end (delta: 78.6 MB). Free memory was 123.2 MB in the beginning and 177.2 MB in the end (delta: -54.0 MB). Peak memory consumption was 66.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 81.66 ms. Allocated memory is still 229.6 MB. Free memory was 176.7 MB in the beginning and 174.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.71 ms. Allocated memory is still 229.6 MB. Free memory was 174.1 MB in the beginning and 171.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 838.56 ms. Allocated memory is still 229.6 MB. Free memory was 171.4 MB in the beginning and 130.5 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8710.04 ms. Allocated memory was 229.6 MB in the beginning and 275.8 MB in the end (delta: 46.1 MB). Free memory was 130.5 MB in the beginning and 101.8 MB in the end (delta: 28.7 MB). Peak memory consumption was 74.8 MB. Max. memory is 8.0 GB. * Witness Printer took 68.32 ms. Allocated memory is still 275.8 MB. Free memory was 101.3 MB in the beginning and 99.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 167 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.7s, 86 PlacesBefore, 17 PlacesAfterwards, 87 TransitionsBefore, 15 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 7 FixpointIterations, 70 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 102 TotalNumberOfCompositions, 302 MoverChecksTotal - 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; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1709] 0 pdev = 1 [L1695] COND FALSE 0 !(!expression) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={5:0}, pdev=1, t1={6:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={5:0}, pdev=2, t1={6:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={5:0}, pdev=6, t1={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 83 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.7s, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...