/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/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:31:23,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:31:23,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:31:23,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:31:23,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:31:23,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:31:23,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:31:23,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:31:23,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:31:23,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:31:23,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:31:23,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:31:23,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:31:23,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:31:23,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:31:23,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:31:23,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:31:23,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:31:23,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:31:23,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:31:23,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:31:23,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:31:23,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:31:23,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:31:23,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 11:31:23,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:31:23,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:31:23,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:31:23,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:31:23,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:31:23,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:31:23,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:31:23,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:31:23,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:31:23,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:31:23,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:31:23,226 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:31:23,284 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:31:23,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:31:23,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:31:23,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:31:23,290 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:31:23,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:31:23,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:31:23,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:31:23,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:31:23,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:31:23,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:31:23,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:31:23,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:31:23,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:31:23,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:31:23,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:31:23,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:31:23,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:31:23,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:31:23,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:31:23,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:31:23,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:31:23,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:31:23,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:31:23,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:31:23,296 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:31:23,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:31:23,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:31:23,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:31:23,827 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:31:23,828 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:31:23,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2020-12-22 11:31:23,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff29b0f84/43c127d9862442fa846f0112a50b36c3/FLAG518b4ae4b [2020-12-22 11:31:24,578 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:31:24,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2020-12-22 11:31:24,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff29b0f84/43c127d9862442fa846f0112a50b36c3/FLAG518b4ae4b [2020-12-22 11:31:24,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff29b0f84/43c127d9862442fa846f0112a50b36c3 [2020-12-22 11:31:24,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:31:24,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:31:24,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:31:24,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:31:24,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:31:24,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:31:24" (1/1) ... [2020-12-22 11:31:24,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e04e9d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:24, skipping insertion in model container [2020-12-22 11:31:24,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:31:24" (1/1) ... [2020-12-22 11:31:24,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:31:24,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:31:25,469 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/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2020-12-22 11:31:25,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:31:25,512 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:31:25,578 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/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2020-12-22 11:31:25,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:31:25,730 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:31:25,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25 WrapperNode [2020-12-22 11:31:25,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:31:25,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:31:25,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:31:25,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:31:25,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (1/1) ... [2020-12-22 11:31:25,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (1/1) ... [2020-12-22 11:31:25,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:31:25,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:31:25,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:31:25,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:31:25,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (1/1) ... [2020-12-22 11:31:25,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (1/1) ... [2020-12-22 11:31:25,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (1/1) ... [2020-12-22 11:31:25,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (1/1) ... [2020-12-22 11:31:25,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (1/1) ... [2020-12-22 11:31:25,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (1/1) ... [2020-12-22 11:31:25,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (1/1) ... [2020-12-22 11:31:25,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:31:25,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:31:25,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:31:25,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:31:25,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (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 11:31:25,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:31:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:31:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-22 11:31:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:31:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-12-22 11:31:25,999 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-12-22 11:31:26,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:31:26,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:31:26,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:31:26,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:31:26,003 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 11:31:26,395 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:31:26,395 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-22 11:31:26,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:31:26 BoogieIcfgContainer [2020-12-22 11:31:26,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:31:26,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:31:26,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:31:26,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:31:26,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:31:24" (1/3) ... [2020-12-22 11:31:26,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b69996b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:31:26, skipping insertion in model container [2020-12-22 11:31:26,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:31:25" (2/3) ... [2020-12-22 11:31:26,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b69996b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:31:26, skipping insertion in model container [2020-12-22 11:31:26,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:31:26" (3/3) ... [2020-12-22 11:31:26,410 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2020-12-22 11:31:26,420 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:31:26,420 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:31:26,426 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:31:26,427 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:31:26,495 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,496 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,496 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,497 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,497 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,497 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,497 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,497 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,498 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,498 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,498 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,498 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,499 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,499 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,499 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,499 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,499 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,500 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,500 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,500 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,501 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,501 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,502 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,503 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,503 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,503 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,504 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,504 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,504 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,504 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,505 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,505 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,505 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,506 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,506 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,506 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,508 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,508 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,508 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,508 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,508 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,509 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,509 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,509 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,510 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,510 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,510 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,510 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,510 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,511 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,511 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,512 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,512 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,512 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,512 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,513 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,513 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,513 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,513 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,514 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,514 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,514 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,514 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,515 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,515 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,515 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,515 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,516 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,519 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,519 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,519 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,520 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,520 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,520 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,520 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,520 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,521 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,522 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:31:26,530 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-12-22 11:31:26,551 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-22 11:31:26,583 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:31:26,583 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:31:26,583 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:31:26,585 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:31:26,585 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:31:26,585 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:31:26,586 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:31:26,586 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:31:26,613 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:31:26,615 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 99 transitions, 206 flow [2020-12-22 11:31:26,621 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 99 transitions, 206 flow [2020-12-22 11:31:26,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 99 transitions, 206 flow [2020-12-22 11:31:26,712 INFO L129 PetriNetUnfolder]: 9/98 cut-off events. [2020-12-22 11:31:26,712 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-12-22 11:31:26,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 9/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 144 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2020-12-22 11:31:26,720 INFO L116 LiptonReduction]: Number of co-enabled transitions 1386 [2020-12-22 11:31:29,460 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-12-22 11:31:29,694 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-12-22 11:31:30,318 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-22 11:31:30,518 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-12-22 11:31:31,707 WARN L197 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 137 [2020-12-22 11:31:32,004 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-12-22 11:31:32,726 WARN L197 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 137 [2020-12-22 11:31:33,019 WARN L197 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-12-22 11:31:33,027 INFO L131 LiptonReduction]: Checked pairs total: 2503 [2020-12-22 11:31:33,027 INFO L133 LiptonReduction]: Total number of compositions: 86 [2020-12-22 11:31:33,034 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 29 transitions, 66 flow [2020-12-22 11:31:33,047 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 84 states. [2020-12-22 11:31:33,049 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-12-22 11:31:33,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-22 11:31:33,055 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:31:33,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-22 11:31:33,056 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:31:33,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:31:33,062 INFO L82 PathProgramCache]: Analyzing trace with hash 362881564, now seen corresponding path program 1 times [2020-12-22 11:31:33,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:31:33,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903880887] [2020-12-22 11:31:33,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:31:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:31:33,313 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 11:31:33,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903880887] [2020-12-22 11:31:33,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:31:33,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-22 11:31:33,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203871987] [2020-12-22 11:31:33,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:31:33,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:31:33,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:31:33,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:31:33,339 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2020-12-22 11:31:33,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:31:33,384 INFO L93 Difference]: Finished difference Result 105 states and 178 transitions. [2020-12-22 11:31:33,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:31:33,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-22 11:31:33,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:31:33,395 INFO L225 Difference]: With dead ends: 105 [2020-12-22 11:31:33,395 INFO L226 Difference]: Without dead ends: 38 [2020-12-22 11:31:33,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 11:31:33,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-22 11:31:33,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-22 11:31:33,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-22 11:31:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-12-22 11:31:33,433 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2020-12-22 11:31:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:31:33,434 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-12-22 11:31:33,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:31:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-12-22 11:31:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 11:31:33,434 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:31:33,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:31:33,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:31:33,435 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:31:33,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:31:33,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1020921474, now seen corresponding path program 1 times [2020-12-22 11:31:33,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:31:33,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083751935] [2020-12-22 11:31:33,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:31:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:31:33,531 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 11:31:33,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083751935] [2020-12-22 11:31:33,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:31:33,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 11:31:33,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078472597] [2020-12-22 11:31:33,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 11:31:33,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:31:33,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 11:31:33,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:31:33,535 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 4 states. [2020-12-22 11:31:33,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:31:33,569 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-12-22 11:31:33,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 11:31:33,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-22 11:31:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:31:33,573 INFO L225 Difference]: With dead ends: 17 [2020-12-22 11:31:33,573 INFO L226 Difference]: Without dead ends: 15 [2020-12-22 11:31:33,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 11:31:33,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-22 11:31:33,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-22 11:31:33,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-22 11:31:33,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-12-22 11:31:33,577 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 9 [2020-12-22 11:31:33,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:31:33,578 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-12-22 11:31:33,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 11:31:33,578 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-12-22 11:31:33,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 11:31:33,578 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:31:33,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 11:31:33,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:31:33,579 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:31:33,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:31:33,580 INFO L82 PathProgramCache]: Analyzing trace with hash 2127811348, now seen corresponding path program 1 times [2020-12-22 11:31:33,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:31:33,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720339563] [2020-12-22 11:31:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:31:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:31:33,727 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 11:31:33,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720339563] [2020-12-22 11:31:33,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:31:33,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 11:31:33,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740532698] [2020-12-22 11:31:33,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 11:31:33,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:31:33,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 11:31:33,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 11:31:33,730 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 6 states. [2020-12-22 11:31:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:31:33,789 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-12-22 11:31:33,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 11:31:33,790 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 11:31:33,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:31:33,790 INFO L225 Difference]: With dead ends: 14 [2020-12-22 11:31:33,791 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 11:31:33,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 11:31:33,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 11:31:33,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 11:31:33,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 11:31:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 11:31:33,793 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-22 11:31:33,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:31:33,794 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 11:31:33,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 11:31:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 11:31:33,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 11:31:33,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:31:33,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:31:33 BasicIcfg [2020-12-22 11:31:33,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:31:33,801 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:31:33,801 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:31:33,805 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:31:33,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:31:26" (3/4) ... [2020-12-22 11:31:33,809 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 11:31:33,817 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2020-12-22 11:31:33,831 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-22 11:31:33,832 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 11:31:33,832 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:31:33,832 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 11:31:33,889 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/goblint-regression/28-race_reach_46-escape_racefree.i-witness.graphml [2020-12-22 11:31:33,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:31:33,891 INFO L168 Benchmark]: Toolchain (without parser) took 9014.40 ms. Allocated memory was 151.0 MB in the beginning and 237.0 MB in the end (delta: 86.0 MB). Free memory was 123.1 MB in the beginning and 100.1 MB in the end (delta: 22.9 MB). Peak memory consumption was 110.3 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:33,892 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 134.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:31:33,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.95 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 122.3 MB in the end (delta: 616.0 kB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:33,893 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.22 ms. Allocated memory is still 151.0 MB. Free memory was 122.3 MB in the beginning and 120.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:33,893 INFO L168 Benchmark]: Boogie Preprocessor took 61.51 ms. Allocated memory is still 151.0 MB. Free memory was 120.2 MB in the beginning and 118.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:33,894 INFO L168 Benchmark]: RCFGBuilder took 512.19 ms. Allocated memory is still 151.0 MB. Free memory was 118.9 MB in the beginning and 93.3 MB in the end (delta: 25.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:33,898 INFO L168 Benchmark]: TraceAbstraction took 7399.17 ms. Allocated memory was 151.0 MB in the beginning and 237.0 MB in the end (delta: 86.0 MB). Free memory was 92.6 MB in the beginning and 103.3 MB in the end (delta: -10.6 MB). Peak memory consumption was 76.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:33,899 INFO L168 Benchmark]: Witness Printer took 88.97 ms. Allocated memory is still 237.0 MB. Free memory was 103.3 MB in the beginning and 100.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:31:33,905 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 134.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 850.95 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 122.3 MB in the end (delta: 616.0 kB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 89.22 ms. Allocated memory is still 151.0 MB. Free memory was 122.3 MB in the beginning and 120.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.51 ms. Allocated memory is still 151.0 MB. Free memory was 120.2 MB in the beginning and 118.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 512.19 ms. Allocated memory is still 151.0 MB. Free memory was 118.9 MB in the beginning and 93.3 MB in the end (delta: 25.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7399.17 ms. Allocated memory was 151.0 MB in the beginning and 237.0 MB in the end (delta: 86.0 MB). Free memory was 92.6 MB in the beginning and 103.3 MB in the end (delta: -10.6 MB). Peak memory consumption was 76.9 MB. Max. memory is 8.0 GB. * Witness Printer took 88.97 ms. Allocated memory is still 237.0 MB. Free memory was 103.3 MB in the beginning and 100.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 864 VarBasedMoverChecksPositive, 120 VarBasedMoverChecksNegative, 83 SemBasedMoverChecksPositive, 37 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 82 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.4s, 94 PlacesBefore, 25 PlacesAfterwards, 99 TransitionsBefore, 29 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 86 TotalNumberOfCompositions, 2503 MoverChecksTotal - PositiveResult [Line: 684]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 36 SDtfs, 33 SDslu, 22 SDs, 0 SdLazy, 36 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...