/usr/bin/java -Xmx16000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 13:03:10,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 13:03:10,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 13:03:10,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 13:03:10,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 13:03:10,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 13:03:10,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 13:03:10,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 13:03:10,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 13:03:10,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 13:03:10,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 13:03:10,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 13:03:10,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 13:03:10,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 13:03:10,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 13:03:10,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 13:03:10,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 13:03:10,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 13:03:10,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 13:03:10,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 13:03:10,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 13:03:10,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 13:03:10,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 13:03:10,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 13:03:10,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 13:03:10,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 13:03:10,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 13:03:10,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 13:03:10,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 13:03:10,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 13:03:10,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 13:03:10,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 13:03:10,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 13:03:10,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 13:03:10,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 13:03:10,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 13:03:10,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 13:03:10,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 13:03:10,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 13:03:10,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 13:03:10,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 13:03:10,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-09 13:03:10,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 13:03:10,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 13:03:10,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 13:03:10,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 13:03:10,914 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 13:03:10,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 13:03:10,915 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 13:03:10,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 13:03:10,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 13:03:10,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 13:03:10,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 13:03:10,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 13:03:10,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 13:03:10,916 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 13:03:10,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 13:03:10,916 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 13:03:10,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 13:03:10,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 13:03:10,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 13:03:10,917 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 13:03:10,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 13:03:10,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 13:03:10,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 13:03:10,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 13:03:10,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 13:03:10,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 13:03:10,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 13:03:10,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 13:03:10,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 13:03:10,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 13:03:11,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 13:03:11,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 13:03:11,245 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 13:03:11,246 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 13:03:11,247 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 13:03:11,247 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i [2020-10-09 13:03:11,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8948f99/fc603a6a47af478e94049a8d8f9e5d3c/FLAG02471196f [2020-10-09 13:03:11,831 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 13:03:11,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i [2020-10-09 13:03:11,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8948f99/fc603a6a47af478e94049a8d8f9e5d3c/FLAG02471196f [2020-10-09 13:03:12,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d8948f99/fc603a6a47af478e94049a8d8f9e5d3c [2020-10-09 13:03:12,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 13:03:12,090 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 13:03:12,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 13:03:12,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 13:03:12,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 13:03:12,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d329bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12, skipping insertion in model container [2020-10-09 13:03:12,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 13:03:12,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 13:03:12,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 13:03:12,677 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 13:03:12,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 13:03:12,805 INFO L208 MainTranslator]: Completed translation [2020-10-09 13:03:12,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12 WrapperNode [2020-10-09 13:03:12,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 13:03:12,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 13:03:12,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 13:03:12,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 13:03:12,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 13:03:12,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 13:03:12,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 13:03:12,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 13:03:12,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (1/1) ... [2020-10-09 13:03:12,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 13:03:12,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 13:03:12,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 13:03:12,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 13:03:12,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (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 [2020-10-09 13:03:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 13:03:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 13:03:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 13:03:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 13:03:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 13:03:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 13:03:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 13:03:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 13:03:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 13:03:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 13:03:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 13:03:12,945 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 13:03:13,243 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 13:03:13,243 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-09 13:03:13,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 01:03:13 BoogieIcfgContainer [2020-10-09 13:03:13,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 13:03:13,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 13:03:13,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 13:03:13,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 13:03:13,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 01:03:12" (1/3) ... [2020-10-09 13:03:13,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3757344e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 01:03:13, skipping insertion in model container [2020-10-09 13:03:13,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 01:03:12" (2/3) ... [2020-10-09 13:03:13,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3757344e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 01:03:13, skipping insertion in model container [2020-10-09 13:03:13,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 01:03:13" (3/3) ... [2020-10-09 13:03:13,253 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.opt.i [2020-10-09 13:03:13,264 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 13:03:13,264 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 13:03:13,271 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 13:03:13,271 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 13:03:13,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,295 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,300 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,303 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,313 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,314 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,314 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,314 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,324 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,324 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,325 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,325 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 13:03:13,340 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-09 13:03:13,356 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 13:03:13,356 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 13:03:13,356 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 13:03:13,356 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 13:03:13,357 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 13:03:13,357 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 13:03:13,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 13:03:13,357 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 13:03:13,367 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 13:03:13,370 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-09 13:03:13,373 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 56 transitions, 122 flow [2020-10-09 13:03:13,374 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-10-09 13:03:13,412 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-10-09 13:03:13,412 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 13:03:13,416 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-09 13:03:13,418 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-09 13:03:14,665 INFO L132 LiptonReduction]: Checked pairs total: 1338 [2020-10-09 13:03:14,665 INFO L134 LiptonReduction]: Total number of compositions: 51 [2020-10-09 13:03:14,672 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-09 13:03:14,684 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-09 13:03:14,686 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-09 13:03:14,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-09 13:03:14,692 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 13:03:14,693 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-09 13:03:14,693 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 13:03:14,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 13:03:14,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1873752150, now seen corresponding path program 1 times [2020-10-09 13:03:14,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 13:03:14,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857770667] [2020-10-09 13:03:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 13:03:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 13:03:14,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 13:03:14,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857770667] [2020-10-09 13:03:14,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 13:03:14,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 13:03:14,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639360703] [2020-10-09 13:03:14,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 13:03:14,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 13:03:14,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 13:03:14,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 13:03:14,942 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-10-09 13:03:14,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 13:03:14,998 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-10-09 13:03:14,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 13:03:15,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-09 13:03:15,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 13:03:15,009 INFO L225 Difference]: With dead ends: 63 [2020-10-09 13:03:15,010 INFO L226 Difference]: Without dead ends: 40 [2020-10-09 13:03:15,011 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 13:03:15,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-09 13:03:15,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-09 13:03:15,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-09 13:03:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-09 13:03:15,048 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 6 [2020-10-09 13:03:15,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 13:03:15,048 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-09 13:03:15,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 13:03:15,049 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-09 13:03:15,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-09 13:03:15,049 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 13:03:15,050 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 13:03:15,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 13:03:15,050 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 13:03:15,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 13:03:15,051 INFO L82 PathProgramCache]: Analyzing trace with hash -771561330, now seen corresponding path program 1 times [2020-10-09 13:03:15,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 13:03:15,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80342027] [2020-10-09 13:03:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 13:03:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 13:03:15,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 13:03:15,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80342027] [2020-10-09 13:03:15,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 13:03:15,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 13:03:15,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58333035] [2020-10-09 13:03:15,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 13:03:15,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 13:03:15,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 13:03:15,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-09 13:03:15,138 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-09 13:03:15,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 13:03:15,196 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-10-09 13:03:15,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 13:03:15,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-09 13:03:15,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 13:03:15,198 INFO L225 Difference]: With dead ends: 35 [2020-10-09 13:03:15,198 INFO L226 Difference]: Without dead ends: 28 [2020-10-09 13:03:15,201 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-09 13:03:15,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-09 13:03:15,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-09 13:03:15,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-09 13:03:15,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-10-09 13:03:15,208 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-10-09 13:03:15,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 13:03:15,209 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-10-09 13:03:15,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 13:03:15,209 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-10-09 13:03:15,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 13:03:15,210 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 13:03:15,211 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 13:03:15,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 13:03:15,211 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 13:03:15,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 13:03:15,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449318, now seen corresponding path program 1 times [2020-10-09 13:03:15,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 13:03:15,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795451543] [2020-10-09 13:03:15,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 13:03:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 13:03:15,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 13:03:15,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795451543] [2020-10-09 13:03:15,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 13:03:15,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 13:03:15,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871744282] [2020-10-09 13:03:15,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 13:03:15,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 13:03:15,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 13:03:15,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 13:03:15,305 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 4 states. [2020-10-09 13:03:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 13:03:15,322 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-10-09 13:03:15,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 13:03:15,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-09 13:03:15,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 13:03:15,323 INFO L225 Difference]: With dead ends: 35 [2020-10-09 13:03:15,324 INFO L226 Difference]: Without dead ends: 22 [2020-10-09 13:03:15,324 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 13:03:15,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-09 13:03:15,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-09 13:03:15,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-09 13:03:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-09 13:03:15,328 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 12 [2020-10-09 13:03:15,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 13:03:15,328 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-09 13:03:15,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 13:03:15,329 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-09 13:03:15,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 13:03:15,329 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 13:03:15,330 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 13:03:15,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 13:03:15,330 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 13:03:15,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 13:03:15,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1252547174, now seen corresponding path program 2 times [2020-10-09 13:03:15,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 13:03:15,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905234714] [2020-10-09 13:03:15,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 13:03:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 13:03:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 13:03:15,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905234714] [2020-10-09 13:03:15,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 13:03:15,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 13:03:15,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053797679] [2020-10-09 13:03:15,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 13:03:15,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 13:03:15,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 13:03:15,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 13:03:15,374 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states. [2020-10-09 13:03:15,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 13:03:15,386 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-09 13:03:15,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 13:03:15,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-09 13:03:15,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 13:03:15,386 INFO L225 Difference]: With dead ends: 21 [2020-10-09 13:03:15,387 INFO L226 Difference]: Without dead ends: 0 [2020-10-09 13:03:15,387 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 13:03:15,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-09 13:03:15,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-09 13:03:15,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-09 13:03:15,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-09 13:03:15,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-09 13:03:15,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 13:03:15,389 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-09 13:03:15,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 13:03:15,389 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-09 13:03:15,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-09 13:03:15,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-09 13:03:15,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 01:03:15 BasicIcfg [2020-10-09 13:03:15,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 13:03:15,396 INFO L168 Benchmark]: Toolchain (without parser) took 3304.50 ms. Allocated memory was 250.6 MB in the beginning and 356.0 MB in the end (delta: 105.4 MB). Free memory was 205.1 MB in the beginning and 167.4 MB in the end (delta: 37.7 MB). Peak memory consumption was 143.1 MB. Max. memory is 14.2 GB. [2020-10-09 13:03:15,397 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 250.6 MB. Free memory was 228.7 MB in the beginning and 227.8 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. [2020-10-09 13:03:15,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.56 ms. Allocated memory was 250.6 MB in the beginning and 312.0 MB in the end (delta: 61.3 MB). Free memory was 205.1 MB in the beginning and 263.8 MB in the end (delta: -58.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-09 13:03:15,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.60 ms. Allocated memory is still 312.0 MB. Free memory was 263.8 MB in the beginning and 261.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 13:03:15,399 INFO L168 Benchmark]: Boogie Preprocessor took 26.70 ms. Allocated memory is still 312.0 MB. Free memory was 261.3 MB in the beginning and 260.4 MB in the end (delta: 838.8 kB). Peak memory consumption was 838.8 kB. Max. memory is 14.2 GB. [2020-10-09 13:03:15,400 INFO L168 Benchmark]: RCFGBuilder took 366.16 ms. Allocated memory is still 312.0 MB. Free memory was 260.4 MB in the beginning and 239.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 14.2 GB. [2020-10-09 13:03:15,401 INFO L168 Benchmark]: TraceAbstraction took 2146.79 ms. Allocated memory was 312.0 MB in the beginning and 356.0 MB in the end (delta: 44.0 MB). Free memory was 239.4 MB in the beginning and 167.4 MB in the end (delta: 72.0 MB). Peak memory consumption was 116.1 MB. Max. memory is 14.2 GB. [2020-10-09 13:03:15,405 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 250.6 MB. Free memory was 228.7 MB in the beginning and 227.8 MB in the end (delta: 839.2 kB). Peak memory consumption was 839.2 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 712.56 ms. Allocated memory was 250.6 MB in the beginning and 312.0 MB in the end (delta: 61.3 MB). Free memory was 205.1 MB in the beginning and 263.8 MB in the end (delta: -58.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 45.60 ms. Allocated memory is still 312.0 MB. Free memory was 263.8 MB in the beginning and 261.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.70 ms. Allocated memory is still 312.0 MB. Free memory was 261.3 MB in the beginning and 260.4 MB in the end (delta: 838.8 kB). Peak memory consumption was 838.8 kB. Max. memory is 14.2 GB. * RCFGBuilder took 366.16 ms. Allocated memory is still 312.0 MB. Free memory was 260.4 MB in the beginning and 239.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2146.79 ms. Allocated memory was 312.0 MB in the beginning and 356.0 MB in the end (delta: 44.0 MB). Free memory was 239.4 MB in the beginning and 167.4 MB in the end (delta: 72.0 MB). Peak memory consumption was 116.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 469 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 33 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 61 PlacesBefore, 22 PlacesAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 1338 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 56 SDtfs, 47 SDslu, 68 SDs, 0 SdLazy, 43 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...