/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 04:34:00,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 04:34:00,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 04:34:00,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 04:34:00,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 04:34:00,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 04:34:00,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 04:34:00,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 04:34:00,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 04:34:00,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 04:34:00,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 04:34:00,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 04:34:00,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 04:34:00,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 04:34:00,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 04:34:00,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 04:34:00,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 04:34:00,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 04:34:00,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 04:34:00,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 04:34:00,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 04:34:00,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 04:34:00,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 04:34:00,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 04:34:00,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-13 04:34:00,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-13 04:34:00,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-13 04:34:00,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-13 04:34:00,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-13 04:34:00,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-13 04:34:00,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 04:34:00,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 04:34:00,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 04:34:00,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 04:34:00,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 04:34:00,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 04:34:00,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 04:34:00,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 04:34:00,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 04:34:00,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 04:34:00,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 04:34:00,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-OGIterative-CovSimpl.epf [2021-08-13 04:34:00,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 04:34:00,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 04:34:00,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 04:34:00,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 04:34:00,225 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 04:34:00,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 04:34:00,226 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 04:34:00,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 04:34:00,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 04:34:00,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 04:34:00,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 04:34:00,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 04:34:00,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 04:34:00,226 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 04:34:00,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 04:34:00,227 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 04:34:00,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 04:34:00,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 04:34:00,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 04:34:00,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 04:34:00,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 04:34:00,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 04:34:00,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 04:34:00,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 04:34:00,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 04:34:00,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 04:34:00,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 04:34:00,228 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 04:34:00,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 04:34:00,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 04:34:00,228 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 04:34:00,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 04:34:00,228 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 04:34:00,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 04:34:00,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 04:34:00,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 04:34:00,529 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 04:34:00,540 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 04:34:00,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2021-08-13 04:34:00,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba30f137/83afdf955d7e4982b96b10ad48ab2ad7/FLAG5e3672172 [2021-08-13 04:34:00,980 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 04:34:00,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2021-08-13 04:34:00,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba30f137/83afdf955d7e4982b96b10ad48ab2ad7/FLAG5e3672172 [2021-08-13 04:34:01,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba30f137/83afdf955d7e4982b96b10ad48ab2ad7 [2021-08-13 04:34:01,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 04:34:01,004 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 04:34:01,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 04:34:01,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 04:34:01,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 04:34:01,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565b000b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01, skipping insertion in model container [2021-08-13 04:34:01,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 04:34:01,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 04:34:01,233 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/stateful01-1.i[30826,30839] [2021-08-13 04:34:01,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 04:34:01,242 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 04:34:01,266 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/stateful01-1.i[30826,30839] [2021-08-13 04:34:01,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 04:34:01,306 INFO L208 MainTranslator]: Completed translation [2021-08-13 04:34:01,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01 WrapperNode [2021-08-13 04:34:01,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 04:34:01,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 04:34:01,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 04:34:01,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 04:34:01,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 04:34:01,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 04:34:01,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 04:34:01,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 04:34:01,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (1/1) ... [2021-08-13 04:34:01,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 04:34:01,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 04:34:01,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 04:34:01,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 04:34:01,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 04:34:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-13 04:34:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-13 04:34:01,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-13 04:34:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-13 04:34:01,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-13 04:34:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 04:34:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-13 04:34:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 04:34:01,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 04:34:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 04:34:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 04:34:01,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 04:34:01,388 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 04:34:01,745 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 04:34:01,746 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-13 04:34:01,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 04:34:01 BoogieIcfgContainer [2021-08-13 04:34:01,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 04:34:01,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 04:34:01,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 04:34:01,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 04:34:01,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 04:34:01" (1/3) ... [2021-08-13 04:34:01,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764c9b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 04:34:01, skipping insertion in model container [2021-08-13 04:34:01,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 04:34:01" (2/3) ... [2021-08-13 04:34:01,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764c9b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 04:34:01, skipping insertion in model container [2021-08-13 04:34:01,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 04:34:01" (3/3) ... [2021-08-13 04:34:01,754 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2021-08-13 04:34:01,758 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 04:34:01,759 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 04:34:01,759 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 04:34:01,784 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,784 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,784 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,784 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,784 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,785 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,785 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,785 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,786 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,786 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,788 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,789 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,790 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,790 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,790 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,790 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,791 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,791 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,791 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,791 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,791 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,791 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,792 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,794 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,794 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,797 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,797 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,797 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,797 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,798 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,798 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,801 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,801 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,801 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,802 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,802 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,802 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,802 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,802 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 04:34:01,811 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-08-13 04:34:01,827 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-13 04:34:01,845 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 04:34:01,845 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 04:34:01,845 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 04:34:01,845 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 04:34:01,845 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 04:34:01,845 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 04:34:01,845 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 04:34:01,846 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 04:34:01,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 200 flow [2021-08-13 04:34:01,910 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2021-08-13 04:34:01,910 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-08-13 04:34:01,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 89 events. 2/89 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 58 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2021-08-13 04:34:01,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 200 flow [2021-08-13 04:34:01,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 77 transitions, 172 flow [2021-08-13 04:34:01,929 INFO L129 PetriNetUnfolder]: 1/78 cut-off events. [2021-08-13 04:34:01,929 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-08-13 04:34:01,929 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 04:34:01,930 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 04:34:01,930 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 04:34:01,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 04:34:01,939 INFO L82 PathProgramCache]: Analyzing trace with hash -2091878973, now seen corresponding path program 1 times [2021-08-13 04:34:01,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 04:34:01,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336927126] [2021-08-13 04:34:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 04:34:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 04:34:02,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 04:34:02,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 04:34:02,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 04:34:02,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 04:34:02,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 04:34:02,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 04:34:02,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 04:34:02,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 04:34:02,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 04:34:02,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-08-13 04:34:02,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 04:34:02,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-08-13 04:34:02,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 04:34:02,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 04:34:02,269 INFO L142 QuantifierPusher]: treesize reduction 7, result has 96.9 percent of original size [2021-08-13 04:34:02,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-08-13 04:34:02,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 04:34:02,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 04:34:02,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 04:34:02,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 04:34:02,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336927126] [2021-08-13 04:34:02,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336927126] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 04:34:02,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 04:34:02,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-13 04:34:02,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719715984] [2021-08-13 04:34:02,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-13 04:34:02,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 04:34:02,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-13 04:34:02,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-08-13 04:34:02,338 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 89 [2021-08-13 04:34:02,341 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 172 flow. Second operand has 9 states, 9 states have (on average 58.111111111111114) internal successors, (523), 9 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 04:34:02,341 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 04:34:02,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 89 [2021-08-13 04:34:02,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 04:34:02,447 INFO L129 PetriNetUnfolder]: 0/78 cut-off events. [2021-08-13 04:34:02,447 INFO L130 PetriNetUnfolder]: For 13/20 co-relation queries the response was YES. [2021-08-13 04:34:02,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 78 events. 0/78 cut-off events. For 13/20 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 6/84 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2021-08-13 04:34:02,449 INFO L132 encePairwiseOnDemand]: 78/89 looper letters, 19 selfloop transitions, 10 changer transitions 1/76 dead transitions. [2021-08-13 04:34:02,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 76 transitions, 225 flow [2021-08-13 04:34:02,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-13 04:34:02,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-08-13 04:34:02,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 635 transitions. [2021-08-13 04:34:02,459 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6486210418794689 [2021-08-13 04:34:02,459 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 635 transitions. [2021-08-13 04:34:02,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 635 transitions. [2021-08-13 04:34:02,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 04:34:02,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 635 transitions. [2021-08-13 04:34:02,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.72727272727273) internal successors, (635), 11 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 04:34:02,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 04:34:02,472 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 04:34:02,473 INFO L348 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2021-08-13 04:34:02,473 INFO L482 AbstractCegarLoop]: Abstraction has has 92 places, 76 transitions, 225 flow [2021-08-13 04:34:02,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 58.111111111111114) internal successors, (523), 9 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 04:34:02,473 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 04:34:02,474 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 04:34:02,474 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 04:34:02,474 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 04:34:02,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 04:34:02,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1004444205, now seen corresponding path program 1 times [2021-08-13 04:34:02,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 04:34:02,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383928288] [2021-08-13 04:34:02,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 04:34:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 04:34:02,524 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 04:34:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-13 04:34:02,546 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-13 04:34:02,567 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-13 04:34:02,567 INFO L651 BasicCegarLoop]: Counterexample might be feasible [2021-08-13 04:34:02,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 04:34:02,570 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 04:34:02,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 04:34:02 BasicIcfg [2021-08-13 04:34:02,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 04:34:02,607 INFO L168 Benchmark]: Toolchain (without parser) took 1603.10 ms. Allocated memory is still 217.1 MB. Free memory was 181.0 MB in the beginning and 120.6 MB in the end (delta: 60.4 MB). Peak memory consumption was 61.7 MB. Max. memory is 8.0 GB. [2021-08-13 04:34:02,607 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 217.1 MB. Free memory is still 198.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 04:34:02,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.59 ms. Allocated memory is still 217.1 MB. Free memory was 180.8 MB in the beginning and 180.3 MB in the end (delta: 485.4 kB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. [2021-08-13 04:34:02,608 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.81 ms. Allocated memory is still 217.1 MB. Free memory was 179.8 MB in the beginning and 178.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 04:34:02,609 INFO L168 Benchmark]: Boogie Preprocessor took 13.15 ms. Allocated memory is still 217.1 MB. Free memory was 178.2 MB in the beginning and 176.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-13 04:34:02,609 INFO L168 Benchmark]: RCFGBuilder took 402.77 ms. Allocated memory is still 217.1 MB. Free memory was 176.7 MB in the beginning and 151.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-08-13 04:34:02,609 INFO L168 Benchmark]: TraceAbstraction took 857.32 ms. Allocated memory is still 217.1 MB. Free memory was 151.0 MB in the beginning and 120.6 MB in the end (delta: 30.4 MB). Peak memory consumption was 32.0 MB. Max. memory is 8.0 GB. [2021-08-13 04:34:02,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 217.1 MB. Free memory is still 198.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 301.59 ms. Allocated memory is still 217.1 MB. Free memory was 180.8 MB in the beginning and 180.3 MB in the end (delta: 485.4 kB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.81 ms. Allocated memory is still 217.1 MB. Free memory was 179.8 MB in the beginning and 178.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.15 ms. Allocated memory is still 217.1 MB. Free memory was 178.2 MB in the beginning and 176.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 402.77 ms. Allocated memory is still 217.1 MB. Free memory was 176.7 MB in the beginning and 151.5 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 857.32 ms. Allocated memory is still 217.1 MB. Free memory was 151.0 MB in the beginning and 120.6 MB in the end (delta: 30.4 MB). Peak memory consumption was 32.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; VAL [ma={7:0}, mb={9:0}] [L693] 0 int data1, data2; VAL [data1=0, data2=0, ma={7:0}, mb={9:0}] [L716] 0 pthread_t t1, t2; VAL [data1=0, data2=0, ma={7:0}, mb={9:0}] [L719] 0 data1 = 10 VAL [data1=10, data2=0, ma={7:0}, mb={9:0}] [L720] 0 data2 = 10 VAL [data1=10, data2=10, ma={7:0}, mb={9:0}] [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={7:0}, mb={9:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data1=10, data2=10, ma={7:0}, mb={9:0}] [L707] 2 data1+=5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=10, ma={7:0}, mb={9:0}] [L710] 2 data2-=6 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={7:0}, mb={9:0}] [L712] 2 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={7:0}, mb={9:0}] [L697] 1 data1++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=4, ma={7:0}, mb={9:0}] [L700] 1 data2++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L702] 1 return 0; VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L723] 0 \read(t1) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L724] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L725] COND TRUE 0 data1==16 && data2==5 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] [L727] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={7:0}, mb={9:0}] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 117 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 725.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 140.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 70.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 10 SDslu, 80 SDs, 0 SdLazy, 86 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 143.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.6ms SsaConstructionTime, 87.5ms SatisfiabilityAnalysisTime, 272.1ms InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...