/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:01:09,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:01:09,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:01:09,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:01:09,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:01:09,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:01:09,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:01:09,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:01:09,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:01:09,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:01:09,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:01:09,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:01:09,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:01:09,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:01:09,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:01:09,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:01:09,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:01:09,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:01:09,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:01:09,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:01:09,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:01:09,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:01:09,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:01:09,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:01:09,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:01:09,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:01:09,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:01:09,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:01:09,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:01:09,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:01:09,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:01:09,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:01:09,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:01:09,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:01:09,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:01:09,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:01:09,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:01:09,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:01:09,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:01:09,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:01:09,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:01:09,220 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 13:01:09,247 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:01:09,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:01:09,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:01:09,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:01:09,250 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:01:09,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:01:09,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:01:09,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:01:09,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:01:09,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:01:09,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:01:09,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:01:09,251 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:01:09,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:01:09,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:01:09,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:01:09,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:01:09,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:01:09,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:01:09,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:01:09,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:01:09,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:01:09,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:01:09,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:01:09,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:01:09,254 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-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:01:09,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:01:09,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:01:09,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:01:09,743 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:01:09,743 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:01:09,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/lazy01.i [2020-12-23 13:01:09,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1dbcfa9ba/1a61005d910044d3ad407ae985c8b9a6/FLAG31917122e [2020-12-23 13:01:10,559 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:01:10,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i [2020-12-23 13:01:10,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1dbcfa9ba/1a61005d910044d3ad407ae985c8b9a6/FLAG31917122e [2020-12-23 13:01:10,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/1dbcfa9ba/1a61005d910044d3ad407ae985c8b9a6 [2020-12-23 13:01:10,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:01:10,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:01:10,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:01:10,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:01:10,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:01:10,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:01:10" (1/1) ... [2020-12-23 13:01:10,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b293d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:10, skipping insertion in model container [2020-12-23 13:01:10,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:01:10" (1/1) ... [2020-12-23 13:01:10,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:01:10,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:01:11,381 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2020-12-23 13:01:11,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:01:11,416 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:01:11,488 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2020-12-23 13:01:11,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:01:11,618 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:01:11,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11 WrapperNode [2020-12-23 13:01:11,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:01:11,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:01:11,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:01:11,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:01:11,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (1/1) ... [2020-12-23 13:01:11,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (1/1) ... [2020-12-23 13:01:11,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:01:11,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:01:11,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:01:11,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:01:11,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (1/1) ... [2020-12-23 13:01:11,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (1/1) ... [2020-12-23 13:01:11,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (1/1) ... [2020-12-23 13:01:11,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (1/1) ... [2020-12-23 13:01:11,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (1/1) ... [2020-12-23 13:01:11,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (1/1) ... [2020-12-23 13:01:11,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (1/1) ... [2020-12-23 13:01:11,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:01:11,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:01:11,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:01:11,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:01:11,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:01:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 13:01:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-12-23 13:01:11,880 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-12-23 13:01:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-12-23 13:01:11,880 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-12-23 13:01:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-12-23 13:01:11,880 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-12-23 13:01:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:01:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-23 13:01:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:01:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:01:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:01:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:01:11,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:01:11,883 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-23 13:01:12,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:01:12,321 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 13:01:12,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:01:12 BoogieIcfgContainer [2020-12-23 13:01:12,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:01:12,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:01:12,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:01:12,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:01:12,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:01:10" (1/3) ... [2020-12-23 13:01:12,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2262c1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:01:12, skipping insertion in model container [2020-12-23 13:01:12,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:01:11" (2/3) ... [2020-12-23 13:01:12,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2262c1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:01:12, skipping insertion in model container [2020-12-23 13:01:12,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:01:12" (3/3) ... [2020-12-23 13:01:12,333 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2020-12-23 13:01:12,340 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:01:12,340 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:01:12,346 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:01:12,347 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:01:12,381 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,382 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,382 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,382 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,383 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,386 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,388 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,388 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,388 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,389 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,389 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,389 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,389 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,389 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,390 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,390 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,390 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,391 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,392 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,392 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,393 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,393 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,393 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,394 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,394 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,394 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,394 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,395 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,395 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,395 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,396 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,396 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,397 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,397 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,397 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,397 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,400 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,400 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,401 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,401 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,401 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,407 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,407 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,407 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,410 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,410 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,410 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,411 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,411 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:01:12,426 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-12-23 13:01:12,446 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-23 13:01:12,469 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:01:12,469 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:01:12,469 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:01:12,469 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:01:12,469 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:01:12,469 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:01:12,470 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:01:12,470 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:01:12,484 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:01:12,486 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 83 transitions, 208 flow [2020-12-23 13:01:12,489 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 83 transitions, 208 flow [2020-12-23 13:01:12,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 208 flow [2020-12-23 13:01:12,552 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2020-12-23 13:01:12,552 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-12-23 13:01:12,558 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 91 events. 6/91 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2020-12-23 13:01:12,561 INFO L116 LiptonReduction]: Number of co-enabled transitions 1168 [2020-12-23 13:01:14,448 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-23 13:01:14,604 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-23 13:01:16,276 WARN L197 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-12-23 13:01:16,543 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-23 13:01:17,180 WARN L197 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-12-23 13:01:17,473 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-23 13:01:17,484 INFO L131 LiptonReduction]: Checked pairs total: 4518 [2020-12-23 13:01:17,484 INFO L133 LiptonReduction]: Total number of compositions: 51 [2020-12-23 13:01:17,491 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 116 flow [2020-12-23 13:01:17,546 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 492 states. [2020-12-23 13:01:17,548 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states. [2020-12-23 13:01:17,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:01:17,556 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:01:17,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:01:17,558 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:01:17,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:01:17,565 INFO L82 PathProgramCache]: Analyzing trace with hash 498075008, now seen corresponding path program 1 times [2020-12-23 13:01:17,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:01:17,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892276961] [2020-12-23 13:01:17,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:01:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:01:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:01:17,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892276961] [2020-12-23 13:01:17,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:01:17,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:01:17,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793701562] [2020-12-23 13:01:17,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:01:17,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:01:17,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:01:17,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:01:17,898 INFO L87 Difference]: Start difference. First operand 492 states. Second operand 3 states. [2020-12-23 13:01:17,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:01:17,981 INFO L93 Difference]: Finished difference Result 480 states and 1245 transitions. [2020-12-23 13:01:17,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:01:17,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-23 13:01:17,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:01:18,005 INFO L225 Difference]: With dead ends: 480 [2020-12-23 13:01:18,006 INFO L226 Difference]: Without dead ends: 250 [2020-12-23 13:01:18,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:01:18,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-12-23 13:01:18,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-12-23 13:01:18,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-12-23 13:01:18,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 622 transitions. [2020-12-23 13:01:18,084 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 622 transitions. Word has length 8 [2020-12-23 13:01:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:01:18,085 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 622 transitions. [2020-12-23 13:01:18,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:01:18,085 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 622 transitions. [2020-12-23 13:01:18,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:01:18,087 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:01:18,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:01:18,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:01:18,087 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:01:18,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:01:18,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1946340514, now seen corresponding path program 1 times [2020-12-23 13:01:18,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:01:18,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069833449] [2020-12-23 13:01:18,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:01:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:01:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:01:18,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069833449] [2020-12-23 13:01:18,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:01:18,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:01:18,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159688049] [2020-12-23 13:01:18,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:01:18,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:01:18,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:01:18,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:01:18,164 INFO L87 Difference]: Start difference. First operand 250 states and 622 transitions. Second operand 3 states. [2020-12-23 13:01:18,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:01:18,188 INFO L93 Difference]: Finished difference Result 142 states and 253 transitions. [2020-12-23 13:01:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:01:18,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-23 13:01:18,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:01:18,193 INFO L225 Difference]: With dead ends: 142 [2020-12-23 13:01:18,193 INFO L226 Difference]: Without dead ends: 140 [2020-12-23 13:01:18,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:01:18,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-23 13:01:18,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-12-23 13:01:18,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-23 13:01:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 250 transitions. [2020-12-23 13:01:18,216 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 250 transitions. Word has length 10 [2020-12-23 13:01:18,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:01:18,219 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 250 transitions. [2020-12-23 13:01:18,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:01:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 250 transitions. [2020-12-23 13:01:18,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 13:01:18,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:01:18,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:01:18,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:01:18,222 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:01:18,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:01:18,223 INFO L82 PathProgramCache]: Analyzing trace with hash -206983733, now seen corresponding path program 1 times [2020-12-23 13:01:18,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:01:18,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167553711] [2020-12-23 13:01:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:01:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:01:18,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:01:18,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167553711] [2020-12-23 13:01:18,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:01:18,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:01:18,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080233741] [2020-12-23 13:01:18,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:01:18,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:01:18,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:01:18,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:01:18,339 INFO L87 Difference]: Start difference. First operand 140 states and 250 transitions. Second operand 4 states. [2020-12-23 13:01:18,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:01:18,357 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2020-12-23 13:01:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:01:18,358 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-23 13:01:18,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:01:18,359 INFO L225 Difference]: With dead ends: 135 [2020-12-23 13:01:18,359 INFO L226 Difference]: Without dead ends: 130 [2020-12-23 13:01:18,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:01:18,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-12-23 13:01:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-12-23 13:01:18,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-12-23 13:01:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2020-12-23 13:01:18,368 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 11 [2020-12-23 13:01:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:01:18,369 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 232 transitions. [2020-12-23 13:01:18,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:01:18,369 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 232 transitions. [2020-12-23 13:01:18,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:01:18,370 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:01:18,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:01:18,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:01:18,371 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:01:18,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:01:18,372 INFO L82 PathProgramCache]: Analyzing trace with hash 225996396, now seen corresponding path program 1 times [2020-12-23 13:01:18,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:01:18,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251320798] [2020-12-23 13:01:18,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:01:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:01:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:01:18,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251320798] [2020-12-23 13:01:18,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:01:18,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:01:18,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660835965] [2020-12-23 13:01:18,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:01:18,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:01:18,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:01:18,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:01:18,455 INFO L87 Difference]: Start difference. First operand 130 states and 232 transitions. Second operand 5 states. [2020-12-23 13:01:18,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:01:18,481 INFO L93 Difference]: Finished difference Result 125 states and 223 transitions. [2020-12-23 13:01:18,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:01:18,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-23 13:01:18,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:01:18,483 INFO L225 Difference]: With dead ends: 125 [2020-12-23 13:01:18,483 INFO L226 Difference]: Without dead ends: 120 [2020-12-23 13:01:18,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 13:01:18,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-12-23 13:01:18,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-12-23 13:01:18,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-23 13:01:18,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2020-12-23 13:01:18,490 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 214 transitions. Word has length 12 [2020-12-23 13:01:18,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:01:18,491 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-12-23 13:01:18,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:01:18,491 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 214 transitions. [2020-12-23 13:01:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:01:18,492 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:01:18,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:01:18,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:01:18,493 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:01:18,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:01:18,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1097626273, now seen corresponding path program 1 times [2020-12-23 13:01:18,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:01:18,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896189628] [2020-12-23 13:01:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:01:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:01:18,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:01:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:01:18,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:01:18,605 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 13:01:18,605 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 13:01:18,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:01:18,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:01:18 BasicIcfg [2020-12-23 13:01:18,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:01:18,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:01:18,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:01:18,666 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:01:18,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:01:12" (3/4) ... [2020-12-23 13:01:18,669 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 13:01:18,723 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread/lazy01.i-witness.graphml [2020-12-23 13:01:18,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:01:18,724 INFO L168 Benchmark]: Toolchain (without parser) took 7914.44 ms. Allocated memory was 169.9 MB in the beginning and 245.4 MB in the end (delta: 75.5 MB). Free memory was 144.3 MB in the beginning and 156.6 MB in the end (delta: -12.4 MB). Peak memory consumption was 64.6 MB. Max. memory is 8.0 GB. [2020-12-23 13:01:18,725 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 169.9 MB. Free memory is still 139.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:01:18,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 803.82 ms. Allocated memory is still 169.9 MB. Free memory was 144.2 MB in the beginning and 114.9 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2020-12-23 13:01:18,726 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.88 ms. Allocated memory is still 169.9 MB. Free memory was 114.9 MB in the beginning and 151.9 MB in the end (delta: -37.0 MB). Peak memory consumption was 3.8 MB. Max. memory is 8.0 GB. [2020-12-23 13:01:18,727 INFO L168 Benchmark]: Boogie Preprocessor took 28.88 ms. Allocated memory is still 169.9 MB. Free memory was 151.9 MB in the beginning and 150.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:01:18,728 INFO L168 Benchmark]: RCFGBuilder took 546.38 ms. Allocated memory is still 169.9 MB. Free memory was 150.3 MB in the beginning and 127.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:01:18,728 INFO L168 Benchmark]: TraceAbstraction took 6340.15 ms. Allocated memory was 169.9 MB in the beginning and 245.4 MB in the end (delta: 75.5 MB). Free memory was 127.3 MB in the beginning and 160.8 MB in the end (delta: -33.6 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:01:18,729 INFO L168 Benchmark]: Witness Printer took 57.33 ms. Allocated memory is still 245.4 MB. Free memory was 160.8 MB in the beginning and 156.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-23 13:01:18,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 169.9 MB. Free memory is still 139.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 803.82 ms. Allocated memory is still 169.9 MB. Free memory was 144.2 MB in the beginning and 114.9 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 126.88 ms. Allocated memory is still 169.9 MB. Free memory was 114.9 MB in the beginning and 151.9 MB in the end (delta: -37.0 MB). Peak memory consumption was 3.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.88 ms. Allocated memory is still 169.9 MB. Free memory was 151.9 MB in the beginning and 150.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 546.38 ms. Allocated memory is still 169.9 MB. Free memory was 150.3 MB in the beginning and 127.8 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6340.15 ms. Allocated memory was 169.9 MB in the beginning and 245.4 MB in the end (delta: 75.5 MB). Free memory was 127.3 MB in the beginning and 160.8 MB in the end (delta: -33.6 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. * Witness Printer took 57.33 ms. Allocated memory is still 245.4 MB. Free memory was 160.8 MB in the beginning and 156.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 823 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 207 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.9s, 86 PlacesBefore, 40 PlacesAfterwards, 83 TransitionsBefore, 37 TransitionsAfterwards, 1168 CoEnabledTransitionPairs, 5 FixpointIterations, 28 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 51 TotalNumberOfCompositions, 4518 MoverChecksTotal - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={10:0}] [L707] 1 data++ VAL [arg={0:0}, arg={0:0}, data=1, mutex={10:0}] [L709] 1 return 0; [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={10:0}] [L714] 2 data+=2 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={10:0}] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={10:0}] [L716] 2 return 0; [L721] COND TRUE 3 data >= 3 [L722] 3 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 117 SDtfs, 57 SDslu, 135 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=492occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 1107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...