/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:01:58,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:01:58,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:01:58,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:01:58,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:01:58,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:01:58,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:01:58,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:01:58,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:01:58,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:01:58,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:01:58,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:01:58,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:01:58,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:01:58,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:01:58,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:01:58,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:01:58,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:01:58,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:01:58,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:01:58,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:01:58,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:01:58,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:01:58,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:01:58,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:01:58,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:01:58,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:01:58,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:01:58,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:01:58,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:01:58,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:01:58,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:01:58,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:01:58,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:01:58,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:01:58,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:01:58,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:01:58,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:01:58,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:01:58,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:01:58,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:01:58,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:01:58,891 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:01:58,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:01:58,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:01:58,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:01:58,896 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:01:58,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:01:58,896 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:01:58,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:01:58,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:01:58,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:01:58,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:01:58,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:01:58,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:01:58,899 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:01:58,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:01:58,899 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:01:58,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:01:58,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:01:58,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:01:58,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:01:58,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:01:58,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:01:58,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:01:58,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:01:58,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:01:58,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:01:58,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:01:58,902 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:01:58,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:01:58,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:01:59,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:01:59,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:01:59,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:01:59,210 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:01:59,210 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:01:59,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-19 05:01:59,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237cbf872/abe7ea16446a41279c5f85b660a75a66/FLAG35e26fdb2 [2019-12-19 05:01:59,848 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:01:59,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-19 05:01:59,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237cbf872/abe7ea16446a41279c5f85b660a75a66/FLAG35e26fdb2 [2019-12-19 05:02:00,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/237cbf872/abe7ea16446a41279c5f85b660a75a66 [2019-12-19 05:02:00,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:02:00,176 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:02:00,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:02:00,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:02:00,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:02:00,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a138a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00, skipping insertion in model container [2019-12-19 05:02:00,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:02:00,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:02:00,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:02:00,700 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:02:00,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:02:00,831 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:02:00,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00 WrapperNode [2019-12-19 05:02:00,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:02:00,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:02:00,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:02:00,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:02:00,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:02:00,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:02:00,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:02:00,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:02:00,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (1/1) ... [2019-12-19 05:02:00,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:02:00,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:02:00,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:02:00,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:02:00,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (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 [2019-12-19 05:02:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:02:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:02:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:02:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:02:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:02:00,974 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:02:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:02:00,974 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:02:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:02:00,974 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:02:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:02:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:02:00,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:02:00,977 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:02:01,352 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:02:01,352 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:02:01,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:02:01 BoogieIcfgContainer [2019-12-19 05:02:01,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:02:01,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:02:01,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:02:01,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:02:01,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:02:00" (1/3) ... [2019-12-19 05:02:01,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d251c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:02:01, skipping insertion in model container [2019-12-19 05:02:01,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:02:00" (2/3) ... [2019-12-19 05:02:01,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d251c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:02:01, skipping insertion in model container [2019-12-19 05:02:01,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:02:01" (3/3) ... [2019-12-19 05:02:01,362 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2019-12-19 05:02:01,373 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:02:01,373 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:02:01,381 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:02:01,382 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:02:01,412 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,412 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,413 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,413 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,414 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,414 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,414 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,415 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,415 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,415 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,416 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,416 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,416 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,417 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,417 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,417 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,417 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,418 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,422 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,422 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,422 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,423 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,428 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,429 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,429 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,429 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,435 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,435 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,436 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,436 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:02:01,457 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:02:01,473 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:02:01,474 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:02:01,474 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:02:01,474 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:02:01,474 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:02:01,474 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:02:01,475 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:02:01,475 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:02:01,487 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:02:01,575 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:02:01,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:02:01,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:02:01,594 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:01,595 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:02:01,596 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:01,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:01,603 INFO L82 PathProgramCache]: Analyzing trace with hash -771073264, now seen corresponding path program 1 times [2019-12-19 05:02:01,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:01,613 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156622659] [2019-12-19 05:02:01,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:02,004 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156622659] [2019-12-19 05:02:02,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:02,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:02:02,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554483758] [2019-12-19 05:02:02,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:02:02,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:02,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:02:02,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:02:02,029 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:02:02,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:02,167 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:02:02,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:02:02,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:02:02,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:02,218 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:02:02,219 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:02:02,220 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:02:02,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:02:02,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:02:02,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:02:02,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:02:02,324 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:02:02,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:02,324 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:02:02,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:02:02,324 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:02:02,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:02:02,328 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:02,328 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:02:02,329 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:02,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:02,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1342943045, now seen corresponding path program 1 times [2019-12-19 05:02:02,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:02,333 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215124024] [2019-12-19 05:02:02,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:02,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:02,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215124024] [2019-12-19 05:02:02,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:02,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:02:02,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051302596] [2019-12-19 05:02:02,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:02:02,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:02,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:02:02,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:02:02,516 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:02:02,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:02,605 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:02:02,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:02:02,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:02:02,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:02,612 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:02:02,612 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:02:02,613 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:02:02,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:02:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:02:02,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:02:02,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:02:02,650 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:02:02,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:02,651 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:02:02,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:02:02,651 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:02:02,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:02:02,653 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:02,653 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:02:02,654 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:02,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:02,654 INFO L82 PathProgramCache]: Analyzing trace with hash -837131723, now seen corresponding path program 1 times [2019-12-19 05:02:02,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:02,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438328221] [2019-12-19 05:02:02,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:02,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438328221] [2019-12-19 05:02:02,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:02,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:02:02,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492410167] [2019-12-19 05:02:02,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:02:02,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:02,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:02:02,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:02:02,789 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:02:02,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:02,895 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:02:02,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:02:02,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:02:02,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:02,899 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:02:02,899 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:02:02,900 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:02:02,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:02:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:02:02,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:02:02,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:02:02,924 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:02:02,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:02,925 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:02:02,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:02:02,925 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:02:02,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:02:02,929 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:02,929 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:02:02,930 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:02,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:02,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1670484431, now seen corresponding path program 1 times [2019-12-19 05:02:02,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:02,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194743343] [2019-12-19 05:02:02,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:03,159 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194743343] [2019-12-19 05:02:03,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:03,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:02:03,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170923990] [2019-12-19 05:02:03,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:02:03,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:03,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:02:03,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:02:03,162 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:02:03,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:03,347 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-12-19 05:02:03,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:02:03,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:02:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:03,350 INFO L225 Difference]: With dead ends: 556 [2019-12-19 05:02:03,351 INFO L226 Difference]: Without dead ends: 280 [2019-12-19 05:02:03,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:02:03,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-19 05:02:03,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-12-19 05:02:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-19 05:02:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-19 05:02:03,363 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-19 05:02:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:03,363 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-19 05:02:03,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:02:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-19 05:02:03,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:02:03,365 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:03,365 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:02:03,365 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:03,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:03,366 INFO L82 PathProgramCache]: Analyzing trace with hash 72488813, now seen corresponding path program 2 times [2019-12-19 05:02:03,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:03,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630420929] [2019-12-19 05:02:03,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:03,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:03,562 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630420929] [2019-12-19 05:02:03,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:03,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:02:03,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816701544] [2019-12-19 05:02:03,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:02:03,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:03,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:02:03,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:02:03,564 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 8 states. [2019-12-19 05:02:03,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:03,699 INFO L93 Difference]: Finished difference Result 451 states and 1206 transitions. [2019-12-19 05:02:03,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 05:02:03,699 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:02:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:03,701 INFO L225 Difference]: With dead ends: 451 [2019-12-19 05:02:03,702 INFO L226 Difference]: Without dead ends: 253 [2019-12-19 05:02:03,702 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-12-19 05:02:03,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-12-19 05:02:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-12-19 05:02:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-12-19 05:02:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-12-19 05:02:03,711 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-12-19 05:02:03,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:03,711 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-12-19 05:02:03,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:02:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-12-19 05:02:03,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:02:03,713 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:02:03,713 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:02:03,713 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:02:03,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:02:03,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1548790957, now seen corresponding path program 3 times [2019-12-19 05:02:03,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:02:03,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028503140] [2019-12-19 05:02:03,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:02:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:02:03,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:02:03,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028503140] [2019-12-19 05:02:03,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:02:03,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:02:03,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812230958] [2019-12-19 05:02:03,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:02:03,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:02:03,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:02:03,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:02:03,844 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-12-19 05:02:03,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:02:03,934 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-12-19 05:02:03,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:02:03,935 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:02:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:02:03,935 INFO L225 Difference]: With dead ends: 199 [2019-12-19 05:02:03,935 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:02:03,936 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:02:03,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:02:03,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:02:03,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:02:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:02:03,937 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:02:03,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:02:03,937 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:02:03,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:02:03,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:02:03,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:02:03,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:02:03 BasicIcfg [2019-12-19 05:02:03,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:02:03,952 INFO L168 Benchmark]: Toolchain (without parser) took 3773.84 ms. Allocated memory was 140.5 MB in the beginning and 246.9 MB in the end (delta: 106.4 MB). Free memory was 103.4 MB in the beginning and 150.4 MB in the end (delta: -47.0 MB). Peak memory consumption was 59.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:03,953 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 140.5 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 05:02:03,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.48 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 103.0 MB in the beginning and 160.5 MB in the end (delta: -57.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:03,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.21 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 158.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:03,960 INFO L168 Benchmark]: Boogie Preprocessor took 26.11 ms. Allocated memory is still 203.4 MB. Free memory was 158.7 MB in the beginning and 156.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:03,961 INFO L168 Benchmark]: RCFGBuilder took 443.52 ms. Allocated memory is still 203.4 MB. Free memory was 156.8 MB in the beginning and 136.2 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:03,962 INFO L168 Benchmark]: TraceAbstraction took 2593.55 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 136.2 MB in the beginning and 150.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:02:03,974 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 140.5 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.48 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 103.0 MB in the beginning and 160.5 MB in the end (delta: -57.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.21 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 158.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.11 ms. Allocated memory is still 203.4 MB. Free memory was 158.7 MB in the beginning and 156.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.52 ms. Allocated memory is still 203.4 MB. Free memory was 156.8 MB in the beginning and 136.2 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2593.55 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 136.2 MB in the beginning and 150.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 305 SDtfs, 428 SDslu, 837 SDs, 0 SdLazy, 110 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...