/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-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:25:10,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:25:10,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:25:10,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:25:10,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:25:10,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:25:10,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:25:10,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:25:10,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:25:10,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:25:10,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:25:10,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:25:10,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:25:10,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:25:10,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:25:10,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:25:10,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:25:10,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:25:10,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:25:10,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:25:10,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:25:10,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:25:10,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:25:10,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:25:10,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:25:10,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:25:10,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:25:10,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:25:10,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:25:10,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:25:10,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:25:10,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:25:10,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:25:10,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:25:10,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:25:10,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:25:10,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:25:10,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:25:10,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:25:10,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:25:10,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:25:10,872 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-McrAutomaton-SP.epf [2020-10-22 02:25:10,918 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:25:10,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:25:10,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:25:10,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:25:10,923 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:25:10,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:25:10,923 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:25:10,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:25:10,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:25:10,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:25:10,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:25:10,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:25:10,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:25:10,925 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:25:10,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:25:10,925 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:25:10,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:25:10,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:25:10,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:25:10,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:25:10,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:25:10,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:25:10,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:25:10,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:25:10,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:25:10,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:25:10,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:25:10,930 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:25:10,930 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:25:10,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:25:10,930 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:25:11,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:25:11,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:25:11,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:25:11,220 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:25:11,220 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:25:11,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-10-22 02:25:11,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9cbe2ab/76dc12989aa648a99e2b08b345985f72/FLAGaa0e0a4f7 [2020-10-22 02:25:11,935 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:25:11,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-10-22 02:25:11,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9cbe2ab/76dc12989aa648a99e2b08b345985f72/FLAGaa0e0a4f7 [2020-10-22 02:25:12,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d9cbe2ab/76dc12989aa648a99e2b08b345985f72 [2020-10-22 02:25:12,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:25:12,144 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:25:12,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:25:12,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:25:12,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:25:12,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:25:12" (1/1) ... [2020-10-22 02:25:12,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271f1582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:12, skipping insertion in model container [2020-10-22 02:25:12,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:25:12" (1/1) ... [2020-10-22 02:25:12,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:25:12,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:25:13,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:25:13,025 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:25:13,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:25:13,603 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:25:13,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13 WrapperNode [2020-10-22 02:25:13,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:25:13,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:25:13,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:25:13,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:25:13,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (1/1) ... [2020-10-22 02:25:13,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (1/1) ... [2020-10-22 02:25:13,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:25:13,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:25:13,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:25:13,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:25:13,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (1/1) ... [2020-10-22 02:25:13,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (1/1) ... [2020-10-22 02:25:13,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (1/1) ... [2020-10-22 02:25:13,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (1/1) ... [2020-10-22 02:25:13,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (1/1) ... [2020-10-22 02:25:13,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (1/1) ... [2020-10-22 02:25:13,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (1/1) ... [2020-10-22 02:25:13,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:25:13,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:25:13,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:25:13,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:25:13,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:25:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:25:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-22 02:25:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-22 02:25:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-22 02:25:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:25:13,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:25:13,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:25:13,885 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-22 02:25:13,886 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-22 02:25:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:25:13,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:25:13,889 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:25:14,629 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:25:14,629 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-22 02:25:14,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:25:14 BoogieIcfgContainer [2020-10-22 02:25:14,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:25:14,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:25:14,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:25:14,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:25:14,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:25:12" (1/3) ... [2020-10-22 02:25:14,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b234005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:25:14, skipping insertion in model container [2020-10-22 02:25:14,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:25:13" (2/3) ... [2020-10-22 02:25:14,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b234005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:25:14, skipping insertion in model container [2020-10-22 02:25:14,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:25:14" (3/3) ... [2020-10-22 02:25:14,639 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2020-10-22 02:25:14,649 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:25:14,649 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:25:14,656 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-22 02:25:14,656 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:25:14,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,683 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,683 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,684 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,684 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,685 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,685 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,685 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,685 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,686 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,686 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,686 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,687 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,688 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,691 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,691 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,691 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,692 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,692 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,692 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,692 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,692 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,693 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:25:14,704 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-22 02:25:14,717 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-22 02:25:14,735 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:25:14,735 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:25:14,735 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:25:14,736 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:25:14,736 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:25:14,736 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:25:14,736 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:25:14,736 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:25:14,751 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:25:14,752 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 108 transitions, 224 flow [2020-10-22 02:25:14,755 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 108 transitions, 224 flow [2020-10-22 02:25:14,757 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 102 places, 108 transitions, 224 flow [2020-10-22 02:25:14,807 INFO L129 PetriNetUnfolder]: 9/119 cut-off events. [2020-10-22 02:25:14,807 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-22 02:25:14,811 INFO L80 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 119 events. 9/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 243 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2020-10-22 02:25:14,814 INFO L116 LiptonReduction]: Number of co-enabled transitions 532 [2020-10-22 02:25:16,808 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-10-22 02:25:17,204 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-22 02:25:17,307 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-22 02:25:17,505 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-22 02:25:17,659 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-22 02:25:18,016 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-10-22 02:25:18,165 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-22 02:25:18,395 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-22 02:25:18,584 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-22 02:25:18,586 INFO L131 LiptonReduction]: Checked pairs total: 456 [2020-10-22 02:25:18,587 INFO L133 LiptonReduction]: Total number of compositions: 145 [2020-10-22 02:25:18,593 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 14 transitions, 36 flow [2020-10-22 02:25:18,600 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-10-22 02:25:18,602 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-22 02:25:18,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-10-22 02:25:18,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:25:18,607 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-10-22 02:25:18,608 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:25:18,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:25:18,612 INFO L82 PathProgramCache]: Analyzing trace with hash 456, now seen corresponding path program 1 times [2020-10-22 02:25:18,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:25:18,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312490318] [2020-10-22 02:25:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:25:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:25:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:25:18,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312490318] [2020-10-22 02:25:18,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:25:18,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-22 02:25:18,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [861172659] [2020-10-22 02:25:18,862 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:25:18,864 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:25:18,873 INFO L252 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-10-22 02:25:18,873 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:25:18,878 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:25:18,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:25:18,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:25:18,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:25:18,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:25:18,899 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-10-22 02:25:18,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:25:18,908 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-10-22 02:25:18,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:25:18,910 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-10-22 02:25:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:25:18,917 INFO L225 Difference]: With dead ends: 14 [2020-10-22 02:25:18,917 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:25:18,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:25:18,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:25:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:25:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:25:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:25:18,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1 [2020-10-22 02:25:18,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:25:18,949 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:25:18,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:25:18,949 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:25:18,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:25:18,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:25:18,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:25:18 BasicIcfg [2020-10-22 02:25:18,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:25:18,955 INFO L168 Benchmark]: Toolchain (without parser) took 6816.41 ms. Allocated memory was 140.5 MB in the beginning and 299.4 MB in the end (delta: 158.9 MB). Free memory was 100.4 MB in the beginning and 221.9 MB in the end (delta: -121.5 MB). Peak memory consumption was 37.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:25:18,956 INFO L168 Benchmark]: CDTParser took 2.97 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 02:25:18,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1458.53 ms. Allocated memory was 140.5 MB in the beginning and 239.6 MB in the end (delta: 99.1 MB). Free memory was 99.5 MB in the beginning and 171.8 MB in the end (delta: -72.3 MB). Peak memory consumption was 76.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:25:18,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.53 ms. Allocated memory is still 239.6 MB. Free memory was 171.8 MB in the beginning and 168.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:25:18,959 INFO L168 Benchmark]: Boogie Preprocessor took 42.40 ms. Allocated memory is still 239.6 MB. Free memory was 168.8 MB in the beginning and 165.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:25:18,960 INFO L168 Benchmark]: RCFGBuilder took 872.81 ms. Allocated memory is still 239.6 MB. Free memory was 165.9 MB in the beginning and 125.1 MB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:25:18,961 INFO L168 Benchmark]: TraceAbstraction took 4320.80 ms. Allocated memory was 239.6 MB in the beginning and 299.4 MB in the end (delta: 59.8 MB). Free memory was 123.7 MB in the beginning and 221.9 MB in the end (delta: -98.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 02:25:18,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.97 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1458.53 ms. Allocated memory was 140.5 MB in the beginning and 239.6 MB in the end (delta: 99.1 MB). Free memory was 99.5 MB in the beginning and 171.8 MB in the end (delta: -72.3 MB). Peak memory consumption was 76.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 110.53 ms. Allocated memory is still 239.6 MB. Free memory was 171.8 MB in the beginning and 168.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.40 ms. Allocated memory is still 239.6 MB. Free memory was 168.8 MB in the beginning and 165.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 872.81 ms. Allocated memory is still 239.6 MB. Free memory was 165.9 MB in the beginning and 125.1 MB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4320.80 ms. Allocated memory was 239.6 MB in the beginning and 299.4 MB in the end (delta: 59.8 MB). Free memory was 123.7 MB in the beginning and 221.9 MB in the end (delta: -98.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 296 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 102 PlacesBefore, 16 PlacesAfterwards, 108 TransitionsBefore, 14 TransitionsAfterwards, 532 CoEnabledTransitionPairs, 7 FixpointIterations, 85 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 12 ConcurrentYvCompositions, 8 ChoiceCompositions, 145 TotalNumberOfCompositions, 456 MoverChecksTotal - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...