/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-ext/06_ticket.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:39:16,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:39:16,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:39:16,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:39:16,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:39:16,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:39:16,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:39:16,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:39:16,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:39:16,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:39:16,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:39:16,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:39:16,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:39:16,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:39:16,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:39:16,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:39:16,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:39:16,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:39:16,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:39:16,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:39:16,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:39:16,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:39:16,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:39:16,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:39:16,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 22:39:16,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:39:16,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:39:16,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:39:16,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:39:16,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:39:16,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:39:16,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:39:16,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:39:16,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:39:16,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:39:16,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:39:16,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 22:39:16,773 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:39:16,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:39:16,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:39:16,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:39:16,775 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:39:16,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:39:16,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:39:16,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:39:16,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:39:16,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:39:16,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:39:16,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:39:16,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:39:16,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:39:16,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:39:16,777 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:39:16,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:39:16,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:39:16,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:39:16,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:39:16,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:39:16,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:39:16,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:39:16,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 22:39:16,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:39:16,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:39:16,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:39:16,779 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 22:39:16,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:39:17,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:39:17,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:39:17,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:39:17,121 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:39:17,125 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:39:17,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/06_ticket.i [2020-10-21 22:39:17,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/270452dd0/a93d43443fe7484dbd1bd842a82b3f96/FLAGd31206d10 [2020-10-21 22:39:17,758 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:39:17,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/06_ticket.i [2020-10-21 22:39:17,774 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/270452dd0/a93d43443fe7484dbd1bd842a82b3f96/FLAGd31206d10 [2020-10-21 22:39:18,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/270452dd0/a93d43443fe7484dbd1bd842a82b3f96 [2020-10-21 22:39:18,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:39:18,035 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:39:18,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:39:18,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:39:18,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:39:18,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695dad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18, skipping insertion in model container [2020-10-21 22:39:18,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:39:18,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:39:18,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:39:18,518 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:39:18,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:39:18,641 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:39:18,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18 WrapperNode [2020-10-21 22:39:18,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:39:18,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:39:18,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:39:18,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:39:18,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:39:18,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:39:18,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:39:18,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:39:18,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (1/1) ... [2020-10-21 22:39:18,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:39:18,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:39:18,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:39:18,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:39:18,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:39:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-21 22:39:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-21 22:39:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:39:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:39:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:39:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:39:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:39:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:39:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:39:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:39:18,812 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:39:19,250 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:39:19,250 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-21 22:39:19,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:39:19 BoogieIcfgContainer [2020-10-21 22:39:19,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:39:19,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:39:19,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:39:19,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:39:19,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:39:18" (1/3) ... [2020-10-21 22:39:19,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156fb89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:39:19, skipping insertion in model container [2020-10-21 22:39:19,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:18" (2/3) ... [2020-10-21 22:39:19,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156fb89e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:39:19, skipping insertion in model container [2020-10-21 22:39:19,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:39:19" (3/3) ... [2020-10-21 22:39:19,263 INFO L111 eAbstractionObserver]: Analyzing ICFG 06_ticket.i [2020-10-21 22:39:19,278 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:39:19,278 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:39:19,288 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:39:19,289 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:39:19,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,324 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,324 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,331 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,333 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,333 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,342 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,344 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,344 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,344 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,344 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:19,348 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:39:19,360 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-21 22:39:19,381 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:39:19,381 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:39:19,381 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 22:39:19,382 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:39:19,382 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:39:19,382 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:39:19,382 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:39:19,382 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:39:19,395 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 22:39:19,396 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 68 transitions, 141 flow [2020-10-21 22:39:19,399 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 68 transitions, 141 flow [2020-10-21 22:39:19,401 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 63 places, 68 transitions, 141 flow [2020-10-21 22:39:19,448 INFO L129 PetriNetUnfolder]: 9/76 cut-off events. [2020-10-21 22:39:19,448 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:39:19,453 INFO L80 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 76 events. 9/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 53. Up to 5 conditions per place. [2020-10-21 22:39:19,456 INFO L116 LiptonReduction]: Number of co-enabled transitions 880 [2020-10-21 22:40:01,514 WARN L193 SmtUtils]: Spent 41.40 s on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2020-10-21 22:40:20,176 WARN L193 SmtUtils]: Spent 18.64 s on a formula simplification that was a NOOP. DAG size: 24 [2020-10-21 22:40:22,354 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 33 [2020-10-21 22:40:24,507 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 31 [2020-10-21 22:40:33,233 WARN L193 SmtUtils]: Spent 8.32 s on a formula simplification that was a NOOP. DAG size: 31 [2020-10-21 22:40:35,372 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 31 [2020-10-21 22:41:02,257 WARN L193 SmtUtils]: Spent 26.85 s on a formula simplification that was a NOOP. DAG size: 30 [2020-10-21 22:41:29,084 WARN L193 SmtUtils]: Spent 26.83 s on a formula simplification that was a NOOP. DAG size: 30 [2020-10-21 22:41:29,275 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-21 22:41:31,504 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 37 [2020-10-21 22:41:33,659 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 37 [2020-10-21 22:41:33,705 INFO L131 LiptonReduction]: Checked pairs total: 903 [2020-10-21 22:41:33,705 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-10-21 22:41:33,719 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 12 transitions, 29 flow [2020-10-21 22:41:33,749 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 29 states. [2020-10-21 22:41:33,755 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-21 22:41:33,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-21 22:41:33,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:41:33,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-21 22:41:33,771 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 22:41:33,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:41:33,777 INFO L82 PathProgramCache]: Analyzing trace with hash 321174403, now seen corresponding path program 1 times [2020-10-21 22:41:33,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:41:33,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802358705] [2020-10-21 22:41:33,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:41:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:41:33,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:41:33,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802358705] [2020-10-21 22:41:33,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:41:33,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:41:33,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025918580] [2020-10-21 22:41:33,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:41:33,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:41:33,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:41:33,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:41:33,987 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-10-21 22:41:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:41:33,999 INFO L93 Difference]: Finished difference Result 23 states and 38 transitions. [2020-10-21 22:41:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:41:34,001 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-10-21 22:41:34,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:41:34,010 INFO L225 Difference]: With dead ends: 23 [2020-10-21 22:41:34,011 INFO L226 Difference]: Without dead ends: 23 [2020-10-21 22:41:34,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:41:34,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-21 22:41:34,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-21 22:41:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-21 22:41:34,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2020-10-21 22:41:34,047 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 38 transitions. Word has length 5 [2020-10-21 22:41:34,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:41:34,047 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 38 transitions. [2020-10-21 22:41:34,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:41:34,047 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2020-10-21 22:41:34,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:41:34,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:41:34,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 22:41:34,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:41:34,048 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 22:41:34,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:41:34,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1366461659, now seen corresponding path program 1 times [2020-10-21 22:41:34,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:41:34,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653117756] [2020-10-21 22:41:34,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:41:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:41:34,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:41:34,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653117756] [2020-10-21 22:41:34,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:41:34,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:41:34,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681758741] [2020-10-21 22:41:34,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:41:34,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:41:34,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:41:34,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:41:34,175 INFO L87 Difference]: Start difference. First operand 23 states and 38 transitions. Second operand 4 states. [2020-10-21 22:41:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:41:34,195 INFO L93 Difference]: Finished difference Result 19 states and 31 transitions. [2020-10-21 22:41:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:41:34,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-21 22:41:34,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:41:34,196 INFO L225 Difference]: With dead ends: 19 [2020-10-21 22:41:34,196 INFO L226 Difference]: Without dead ends: 19 [2020-10-21 22:41:34,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:41:34,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-21 22:41:34,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-21 22:41:34,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-21 22:41:34,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 31 transitions. [2020-10-21 22:41:34,202 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 31 transitions. Word has length 6 [2020-10-21 22:41:34,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:41:34,202 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 31 transitions. [2020-10-21 22:41:34,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:41:34,202 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 31 transitions. [2020-10-21 22:41:34,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:41:34,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:41:34,203 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-21 22:41:34,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:41:34,204 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-21 22:41:34,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:41:34,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1366344229, now seen corresponding path program 1 times [2020-10-21 22:41:34,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:41:34,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536564424] [2020-10-21 22:41:34,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:41:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:41:34,228 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:41:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:41:34,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:41:34,278 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:41:34,279 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:41:34,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:41:34,281 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:41:34,284 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-21 22:41:34,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,304 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,317 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,318 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,318 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,318 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,336 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,337 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,338 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,338 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,338 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,342 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_fetch_and_increment__next_ticket_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_acquire_lock_~my_ticket~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_fetch_and_increment__next_ticket_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,344 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,344 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,344 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_acquire_lock_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,344 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,344 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_release_lock_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,345 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:41:34,348 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:41:34,349 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 22:41:34,349 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:41:34,349 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:41:34,349 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 22:41:34,349 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:41:34,349 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:41:34,350 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:41:34,350 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:41:34,350 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:41:34,357 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 22:41:34,357 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 113 transitions, 238 flow [2020-10-21 22:41:34,357 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 113 transitions, 238 flow [2020-10-21 22:41:34,358 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 103 places, 113 transitions, 238 flow [2020-10-21 22:41:34,400 INFO L129 PetriNetUnfolder]: 17/130 cut-off events. [2020-10-21 22:41:34,400 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-21 22:41:34,403 INFO L80 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 130 events. 17/130 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 262 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 97. Up to 6 conditions per place. [2020-10-21 22:41:34,410 INFO L116 LiptonReduction]: Number of co-enabled transitions 5720 [2020-10-21 22:41:41,172 WARN L193 SmtUtils]: Spent 6.23 s on a formula simplification that was a NOOP. DAG size: 24 [2020-10-21 22:41:45,328 WARN L193 SmtUtils]: Spent 4.16 s on a formula simplification that was a NOOP. DAG size: 24 [2020-10-21 22:42:08,415 WARN L193 SmtUtils]: Spent 22.81 s on a formula simplification. DAG size of input: 29 DAG size of output: 25 [2020-10-21 22:42:20,847 WARN L193 SmtUtils]: Spent 12.43 s on a formula simplification that was a NOOP. DAG size: 24 [2020-10-21 22:42:22,977 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 28 [2020-10-21 22:42:25,111 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 28 [2020-10-21 22:42:25,630 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-10-21 22:42:44,413 WARN L193 SmtUtils]: Spent 18.70 s on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2020-10-21 22:43:09,235 WARN L193 SmtUtils]: Spent 24.82 s on a formula simplification that was a NOOP. DAG size: 30 [2020-10-21 22:43:11,370 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 34 [2020-10-21 22:43:13,503 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 34 [2020-10-21 22:43:40,339 WARN L193 SmtUtils]: Spent 26.84 s on a formula simplification that was a NOOP. DAG size: 30 Received shutdown request... [2020-10-21 22:44:11,278 WARN L193 SmtUtils]: Spent 30.94 s on a formula simplification that was a NOOP. DAG size: 30 [2020-10-21 22:44:11,284 WARN L210 SmtUtils]: Removed 1 from assertion stack [2020-10-21 22:44:11,285 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-21 22:44:11,288 WARN L235 ceAbstractionStarter]: Timeout [2020-10-21 22:44:11,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:44:11 BasicIcfg [2020-10-21 22:44:11,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:44:11,290 INFO L168 Benchmark]: Toolchain (without parser) took 293259.58 ms. Allocated memory was 140.0 MB in the beginning and 264.8 MB in the end (delta: 124.8 MB). Free memory was 102.1 MB in the beginning and 182.0 MB in the end (delta: -79.8 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:44:11,290 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 22:44:11,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.65 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 161.3 MB in the end (delta: -60.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:44:11,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.46 ms. Allocated memory is still 203.4 MB. Free memory was 161.3 MB in the beginning and 159.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:44:11,293 INFO L168 Benchmark]: Boogie Preprocessor took 31.44 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 157.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:44:11,293 INFO L168 Benchmark]: RCFGBuilder took 527.14 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 133.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:44:11,294 INFO L168 Benchmark]: TraceAbstraction took 292034.06 ms. Allocated memory was 203.4 MB in the beginning and 264.8 MB in the end (delta: 61.3 MB). Free memory was 132.5 MB in the beginning and 182.0 MB in the end (delta: -49.5 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:44:11,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 606.65 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 161.3 MB in the end (delta: -60.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.46 ms. Allocated memory is still 203.4 MB. Free memory was 161.3 MB in the beginning and 159.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.44 ms. Allocated memory is still 203.4 MB. Free memory was 159.0 MB in the beginning and 157.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 527.14 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 133.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 292034.06 ms. Allocated memory was 203.4 MB in the beginning and 264.8 MB in the end (delta: 61.3 MB). Free memory was 132.5 MB in the beginning and 182.0 MB in the end (delta: -49.5 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 505 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 6 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 134.3s, 63 PlacesBefore, 13 PlacesAfterwards, 68 TransitionsBefore, 12 TransitionsAfterwards, 880 CoEnabledTransitionPairs, 6 FixpointIterations, 12 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 6 ChoiceCompositions, 82 TotalNumberOfCompositions, 903 MoverChecksTotal - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 16). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 103 places, 113 transitions, 238 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 103 places, 113 transitions, 238 flow and 840 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 0ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 60 locations, 1 error locations. Started 2 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 291.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 291.3s, HoareTripleCheckerStatistics: 20 SDtfs, 6 SDslu, 9 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown