/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 21:55:12,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 21:55:12,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 21:55:12,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 21:55:12,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 21:55:12,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 21:55:12,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 21:55:12,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 21:55:12,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 21:55:12,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 21:55:12,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 21:55:12,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 21:55:12,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 21:55:12,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 21:55:12,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 21:55:12,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 21:55:12,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 21:55:12,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 21:55:12,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 21:55:12,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 21:55:12,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-05-21 21:55:12,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 21:55:12,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 21:55:12,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 21:55:12,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 21:55:12,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 21:55:12,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 21:55:12,237 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 21:55:12,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 21:55:12,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 21:55:12,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 21:55:12,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 21:55:12,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 21:55:12,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 21:55:12,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 21:55:12,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 21:55:12,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 21:55:12,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 21:55:12,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 21:55:12,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 21:55:12,239 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 21:55:12,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 21:55:12,240 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 21:55:12,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 21:55:12,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 21:55:12,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 21:55:12,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 21:55:12,470 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 21:55:12,472 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 21:55:12,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2021-05-21 21:55:12,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac99f2dbf/c80bd8d3f9a54015be67ed069b0901bc/FLAG806dac3ed [2021-05-21 21:55:12,966 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 21:55:12,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2021-05-21 21:55:12,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac99f2dbf/c80bd8d3f9a54015be67ed069b0901bc/FLAG806dac3ed [2021-05-21 21:55:12,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac99f2dbf/c80bd8d3f9a54015be67ed069b0901bc [2021-05-21 21:55:12,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 21:55:12,986 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 21:55:12,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 21:55:12,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 21:55:12,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 21:55:12,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 09:55:12" (1/1) ... [2021-05-21 21:55:12,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff785cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:12, skipping insertion in model container [2021-05-21 21:55:12,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 09:55:12" (1/1) ... [2021-05-21 21:55:12,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 21:55:13,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 21:55:13,270 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2021-05-21 21:55:13,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 21:55:13,289 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 21:55:13,352 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i[42004,42017] [2021-05-21 21:55:13,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 21:55:13,442 INFO L208 MainTranslator]: Completed translation [2021-05-21 21:55:13,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13 WrapperNode [2021-05-21 21:55:13,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 21:55:13,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 21:55:13,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 21:55:13,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 21:55:13,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (1/1) ... [2021-05-21 21:55:13,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (1/1) ... [2021-05-21 21:55:13,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 21:55:13,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 21:55:13,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 21:55:13,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 21:55:13,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (1/1) ... [2021-05-21 21:55:13,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (1/1) ... [2021-05-21 21:55:13,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (1/1) ... [2021-05-21 21:55:13,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (1/1) ... [2021-05-21 21:55:13,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (1/1) ... [2021-05-21 21:55:13,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (1/1) ... [2021-05-21 21:55:13,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (1/1) ... [2021-05-21 21:55:13,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 21:55:13,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 21:55:13,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 21:55:13,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 21:55:13,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 21:55:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 21:55:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 21:55:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-21 21:55:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-21 21:55:13,603 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-21 21:55:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-21 21:55:13,604 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-21 21:55:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 21:55:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-05-21 21:55:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 21:55:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 21:55:13,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 21:55:13,605 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 21:55:13,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 21:55:13,884 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-05-21 21:55:13,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 09:55:13 BoogieIcfgContainer [2021-05-21 21:55:13,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 21:55:13,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 21:55:13,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 21:55:13,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 21:55:13,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 09:55:12" (1/3) ... [2021-05-21 21:55:13,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353608d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 09:55:13, skipping insertion in model container [2021-05-21 21:55:13,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 09:55:13" (2/3) ... [2021-05-21 21:55:13,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353608d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 09:55:13, skipping insertion in model container [2021-05-21 21:55:13,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 09:55:13" (3/3) ... [2021-05-21 21:55:13,890 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2021-05-21 21:55:13,893 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 21:55:13,894 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 21:55:13,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-21 21:55:13,894 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 21:55:13,913 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,914 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,914 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,914 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,914 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,914 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,914 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,914 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,915 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,915 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,915 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,915 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,915 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,916 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,917 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,918 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,918 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,919 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,919 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,919 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,919 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,919 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,920 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,920 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,920 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,920 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,920 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,921 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,921 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,921 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,921 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,921 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,922 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,922 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,922 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,922 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,922 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,922 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,922 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,923 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,923 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,923 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,923 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,925 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,925 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,925 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,925 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,925 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,925 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,925 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,929 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,929 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 21:55:13,939 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-05-21 21:55:13,953 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-21 21:55:13,972 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 21:55:13,973 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 21:55:13,973 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 21:55:13,973 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 21:55:13,973 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 21:55:13,973 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 21:55:13,973 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 21:55:13,973 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 21:55:13,983 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 102 transitions, 226 flow [2021-05-21 21:55:14,022 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1007 states, 1005 states have (on average 2.6597014925373132) internal successors, (2673), 1006 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 21:55:14,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 1007 states, 1005 states have (on average 2.6597014925373132) internal successors, (2673), 1006 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 21:55:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-05-21 21:55:14,051 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 21:55:14,052 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 21:55:14,052 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 21:55:14,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 21:55:14,056 INFO L82 PathProgramCache]: Analyzing trace with hash 879877097, now seen corresponding path program 1 times [2021-05-21 21:55:14,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 21:55:14,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104347179] [2021-05-21 21:55:14,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 21:55:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 21:55:14,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 21:55:14,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 21:55:14,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104347179] [2021-05-21 21:55:14,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104347179] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 21:55:14,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 21:55:14,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-21 21:55:14,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304214008] [2021-05-21 21:55:14,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-21 21:55:14,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 21:55:14,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-21 21:55:14,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 21:55:14,241 INFO L87 Difference]: Start difference. First operand has 1007 states, 1005 states have (on average 2.6597014925373132) internal successors, (2673), 1006 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 21:55:14,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 21:55:14,262 INFO L93 Difference]: Finished difference Result 1006 states and 2547 transitions. [2021-05-21 21:55:14,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-21 21:55:14,263 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-05-21 21:55:14,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 21:55:14,276 INFO L225 Difference]: With dead ends: 1006 [2021-05-21 21:55:14,276 INFO L226 Difference]: Without dead ends: 998 [2021-05-21 21:55:14,277 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 21:55:14,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2021-05-21 21:55:14,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 998. [2021-05-21 21:55:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 997 states have (on average 2.546639919759278) internal successors, (2539), 997 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 21:55:14,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 2539 transitions. [2021-05-21 21:55:14,336 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 2539 transitions. Word has length 78 [2021-05-21 21:55:14,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 21:55:14,340 INFO L482 AbstractCegarLoop]: Abstraction has 998 states and 2539 transitions. [2021-05-21 21:55:14,340 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 21:55:14,340 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 2539 transitions. [2021-05-21 21:55:14,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-05-21 21:55:14,344 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 21:55:14,344 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 21:55:14,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 21:55:14,345 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 21:55:14,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 21:55:14,347 INFO L82 PathProgramCache]: Analyzing trace with hash 374318472, now seen corresponding path program 1 times [2021-05-21 21:55:14,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 21:55:14,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10755719] [2021-05-21 21:55:14,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 21:55:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 21:55:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 21:55:14,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 21:55:14,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10755719] [2021-05-21 21:55:14,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10755719] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 21:55:14,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 21:55:14,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-21 21:55:14,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513624449] [2021-05-21 21:55:14,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-21 21:55:14,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 21:55:14,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-21 21:55:14,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-05-21 21:55:14,564 INFO L87 Difference]: Start difference. First operand 998 states and 2539 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 21:55:14,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 21:55:14,672 INFO L93 Difference]: Finished difference Result 591 states and 1393 transitions. [2021-05-21 21:55:14,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 21:55:14,673 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-05-21 21:55:14,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 21:55:14,674 INFO L225 Difference]: With dead ends: 591 [2021-05-21 21:55:14,674 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 21:55:14,674 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 78.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-05-21 21:55:14,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 21:55:14,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 21:55:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 21:55:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 21:55:14,675 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2021-05-21 21:55:14,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 21:55:14,676 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 21:55:14,676 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 21:55:14,676 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 21:55:14,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 21:55:14,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 21:55:14,677 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 21:55:14,678 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 21:55:14,684 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 21:55:14,684 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 21:55:14,684 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 21:55:14,684 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 21:55:14,684 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 21:55:14,684 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 21:55:14,684 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 21:55:14,684 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 21:55:14,690 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 102 transitions, 226 flow [2021-05-21 21:55:14,715 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1007 states, 1005 states have (on average 2.6597014925373132) internal successors, (2673), 1006 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 21:55:14,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 1007 states, 1005 states have (on average 2.6597014925373132) internal successors, (2673), 1006 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 21:55:14,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 21:55:14,718 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 21:55:14,718 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 21:55:14,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 09:55:14 BasicIcfg [2021-05-21 21:55:14,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 21:55:14,721 INFO L168 Benchmark]: Toolchain (without parser) took 1734.36 ms. Allocated memory is still 346.0 MB. Free memory was 308.3 MB in the beginning and 321.3 MB in the end (delta: -13.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 21:55:14,721 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 346.0 MB. Free memory was 326.6 MB in the beginning and 326.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 21:55:14,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.57 ms. Allocated memory is still 346.0 MB. Free memory was 308.1 MB in the beginning and 287.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.0 GB. [2021-05-21 21:55:14,722 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.72 ms. Allocated memory is still 346.0 MB. Free memory was 287.3 MB in the beginning and 285.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 21:55:14,722 INFO L168 Benchmark]: Boogie Preprocessor took 32.70 ms. Allocated memory is still 346.0 MB. Free memory was 285.2 MB in the beginning and 283.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 21:55:14,722 INFO L168 Benchmark]: RCFGBuilder took 360.03 ms. Allocated memory is still 346.0 MB. Free memory was 283.1 MB in the beginning and 253.8 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-05-21 21:55:14,723 INFO L168 Benchmark]: TraceAbstraction took 833.81 ms. Allocated memory is still 346.0 MB. Free memory was 253.8 MB in the beginning and 321.3 MB in the end (delta: -67.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 21:55:14,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 346.0 MB. Free memory was 326.6 MB in the beginning and 326.6 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 455.57 ms. Allocated memory is still 346.0 MB. Free memory was 308.1 MB in the beginning and 287.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.72 ms. Allocated memory is still 346.0 MB. Free memory was 287.3 MB in the beginning and 285.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.70 ms. Allocated memory is still 346.0 MB. Free memory was 285.2 MB in the beginning and 283.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 360.03 ms. Allocated memory is still 346.0 MB. Free memory was 283.1 MB in the beginning and 253.8 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 833.81 ms. Allocated memory is still 346.0 MB. Free memory was 253.8 MB in the beginning and 321.3 MB in the end (delta: -67.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 966]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 126 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 705.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 32.4ms, AutomataDifference: 157.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 49.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 211 SDtfs, 213 SDslu, 318 SDs, 0 SdLazy, 35 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 78.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1007occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 50.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.5ms SsaConstructionTime, 111.6ms SatisfiabilityAnalysisTime, 182.5ms InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 126 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 34.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 3.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 30.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1007occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...