/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 04:04:59,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 04:04:59,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 04:04:59,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 04:04:59,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 04:04:59,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 04:04:59,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 04:04:59,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 04:04:59,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 04:04:59,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 04:04:59,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 04:04:59,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 04:04:59,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 04:04:59,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 04:04:59,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 04:04:59,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 04:04:59,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 04:04:59,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 04:04:59,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 04:04:59,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 04:04:59,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 04:04:59,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 04:04:59,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 04:04:59,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 04:04:59,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 04:04:59,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 04:04:59,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 04:04:59,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 04:04:59,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 04:04:59,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 04:04:59,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 04:04:59,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 04:04:59,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 04:04:59,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 04:04:59,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 04:04:59,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 04:04:59,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 04:04:59,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 04:04:59,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 04:04:59,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 04:04:59,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 04:04:59,861 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-MCR.epf [2019-12-28 04:04:59,894 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 04:04:59,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 04:04:59,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 04:04:59,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 04:04:59,895 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 04:04:59,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 04:04:59,896 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 04:04:59,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 04:04:59,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 04:04:59,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 04:04:59,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 04:04:59,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 04:04:59,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 04:04:59,897 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 04:04:59,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 04:04:59,898 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 04:04:59,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 04:04:59,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 04:04:59,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 04:04:59,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 04:04:59,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 04:04:59,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:04:59,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 04:04:59,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 04:04:59,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 04:04:59,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 04:04:59,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 04:04:59,904 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 04:04:59,904 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 04:04:59,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 04:04:59,905 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 04:04:59,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 04:05:00,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 04:05:00,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 04:05:00,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 04:05:00,210 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 04:05:00,212 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 04:05:00,213 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2019-12-28 04:05:00,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00b7860bb/73a5efe515f140d48c5cb707dc142306/FLAG81bc11dc7 [2019-12-28 04:05:00,884 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 04:05:00,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.oepc.i [2019-12-28 04:05:00,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00b7860bb/73a5efe515f140d48c5cb707dc142306/FLAG81bc11dc7 [2019-12-28 04:05:01,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00b7860bb/73a5efe515f140d48c5cb707dc142306 [2019-12-28 04:05:01,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 04:05:01,167 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 04:05:01,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 04:05:01,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 04:05:01,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 04:05:01,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:05:01" (1/1) ... [2019-12-28 04:05:01,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23588bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:01, skipping insertion in model container [2019-12-28 04:05:01,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:05:01" (1/1) ... [2019-12-28 04:05:01,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 04:05:01,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 04:05:01,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:05:01,850 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 04:05:01,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:05:02,043 INFO L208 MainTranslator]: Completed translation [2019-12-28 04:05:02,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02 WrapperNode [2019-12-28 04:05:02,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 04:05:02,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 04:05:02,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 04:05:02,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 04:05:02,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (1/1) ... [2019-12-28 04:05:02,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (1/1) ... [2019-12-28 04:05:02,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 04:05:02,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 04:05:02,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 04:05:02,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 04:05:02,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (1/1) ... [2019-12-28 04:05:02,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (1/1) ... [2019-12-28 04:05:02,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (1/1) ... [2019-12-28 04:05:02,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (1/1) ... [2019-12-28 04:05:02,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (1/1) ... [2019-12-28 04:05:02,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (1/1) ... [2019-12-28 04:05:02,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (1/1) ... [2019-12-28 04:05:02,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 04:05:02,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 04:05:02,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 04:05:02,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 04:05:02,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (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 [2019-12-28 04:05:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 04:05:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 04:05:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 04:05:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 04:05:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 04:05:02,258 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 04:05:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 04:05:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 04:05:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 04:05:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 04:05:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 04:05:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 04:05:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 04:05:02,261 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 04:05:02,631 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 04:05:02,632 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 04:05:02,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:05:02 BoogieIcfgContainer [2019-12-28 04:05:02,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 04:05:02,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 04:05:02,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 04:05:02,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 04:05:02,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:05:01" (1/3) ... [2019-12-28 04:05:02,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f461d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:05:02, skipping insertion in model container [2019-12-28 04:05:02,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:05:02" (2/3) ... [2019-12-28 04:05:02,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f461d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:05:02, skipping insertion in model container [2019-12-28 04:05:02,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:05:02" (3/3) ... [2019-12-28 04:05:02,642 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2019-12-28 04:05:02,653 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 04:05:02,653 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 04:05:02,661 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 04:05:02,662 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 04:05:02,691 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,691 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,692 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,692 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,692 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,692 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,693 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,693 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,693 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,694 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,694 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,694 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,695 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,695 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,695 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,695 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,696 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,696 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,700 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,700 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,700 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,701 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,710 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,710 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,710 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,711 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,713 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,713 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,713 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,713 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:05:02,729 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 04:05:02,747 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 04:05:02,748 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 04:05:02,748 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 04:05:02,748 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 04:05:02,748 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 04:05:02,748 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 04:05:02,749 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 04:05:02,749 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 04:05:02,760 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-28 04:05:02,845 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-28 04:05:02,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-28 04:05:02,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 04:05:02,874 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:05:02,876 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] [2019-12-28 04:05:02,876 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:05:02,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:05:02,883 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-28 04:05:02,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:05:02,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800109639] [2019-12-28 04:05:02,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:05:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:05:03,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:05:03,295 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800109639] [2019-12-28 04:05:03,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:05:03,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 04:05:03,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1958225544] [2019-12-28 04:05:03,299 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:05:03,309 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:05:03,336 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 04:05:03,337 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:05:03,342 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:05:03,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 04:05:03,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:05:03,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 04:05:03,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 04:05:03,361 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-28 04:05:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:05:03,466 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-28 04:05:03,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 04:05:03,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-28 04:05:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:05:03,490 INFO L225 Difference]: With dead ends: 1295 [2019-12-28 04:05:03,491 INFO L226 Difference]: Without dead ends: 601 [2019-12-28 04:05:03,492 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 [2019-12-28 04:05:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-28 04:05:03,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-28 04:05:03,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-28 04:05:03,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-28 04:05:03,585 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-28 04:05:03,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:05:03,586 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-28 04:05:03,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 04:05:03,586 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-28 04:05:03,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 04:05:03,588 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:05:03,588 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] [2019-12-28 04:05:03,589 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:05:03,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:05:03,589 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-28 04:05:03,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:05:03,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642723907] [2019-12-28 04:05:03,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:05:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:05:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:05:03,758 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642723907] [2019-12-28 04:05:03,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:05:03,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:05:03,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [649756950] [2019-12-28 04:05:03,759 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:05:03,763 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:05:03,768 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 40 transitions. [2019-12-28 04:05:03,768 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:05:03,769 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:05:03,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 04:05:03,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:05:03,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 04:05:03,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:05:03,772 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-28 04:05:03,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:05:03,856 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-28 04:05:03,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:05:03,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-28 04:05:03,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:05:03,862 INFO L225 Difference]: With dead ends: 601 [2019-12-28 04:05:03,862 INFO L226 Difference]: Without dead ends: 538 [2019-12-28 04:05:03,863 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 [2019-12-28 04:05:03,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-28 04:05:03,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-28 04:05:03,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-28 04:05:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-28 04:05:03,892 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-28 04:05:03,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:05:03,893 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-28 04:05:03,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 04:05:03,893 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-28 04:05:03,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 04:05:03,895 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:05:03,895 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] [2019-12-28 04:05:03,895 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:05:03,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:05:03,896 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-28 04:05:03,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:05:03,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780787001] [2019-12-28 04:05:03,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:05:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:05:04,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:05:04,023 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780787001] [2019-12-28 04:05:04,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:05:04,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 04:05:04,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [462629433] [2019-12-28 04:05:04,024 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:05:04,029 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:05:04,034 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 41 transitions. [2019-12-28 04:05:04,035 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:05:04,035 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:05:04,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 04:05:04,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:05:04,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 04:05:04,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 04:05:04,037 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-28 04:05:04,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:05:04,142 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-28 04:05:04,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:05:04,143 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 04:05:04,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:05:04,146 INFO L225 Difference]: With dead ends: 403 [2019-12-28 04:05:04,146 INFO L226 Difference]: Without dead ends: 349 [2019-12-28 04:05:04,147 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 [2019-12-28 04:05:04,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-28 04:05:04,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-28 04:05:04,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-28 04:05:04,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-28 04:05:04,159 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-28 04:05:04,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:05:04,159 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-28 04:05:04,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 04:05:04,160 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-28 04:05:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:05:04,161 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:05:04,161 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] [2019-12-28 04:05:04,162 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:05:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:05:04,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-28 04:05:04,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:05:04,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213377038] [2019-12-28 04:05:04,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:05:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:05:04,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:05:04,407 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213377038] [2019-12-28 04:05:04,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:05:04,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:05:04,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1571061217] [2019-12-28 04:05:04,408 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:05:04,414 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:05:04,422 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 42 transitions. [2019-12-28 04:05:04,422 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:05:04,422 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:05:04,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 04:05:04,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:05:04,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 04:05:04,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:05:04,424 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-28 04:05:04,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:05:04,776 INFO L93 Difference]: Finished difference Result 718 states and 1938 transitions. [2019-12-28 04:05:04,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-28 04:05:04,777 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 04:05:04,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:05:04,782 INFO L225 Difference]: With dead ends: 718 [2019-12-28 04:05:04,782 INFO L226 Difference]: Without dead ends: 313 [2019-12-28 04:05:04,784 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-12-28 04:05:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-28 04:05:04,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-28 04:05:04,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-28 04:05:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-28 04:05:04,801 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-28 04:05:04,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:05:04,801 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-28 04:05:04,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 04:05:04,802 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-28 04:05:04,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:05:04,803 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:05:04,803 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] [2019-12-28 04:05:04,803 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:05:04,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:05:04,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1476702554, now seen corresponding path program 2 times [2019-12-28 04:05:04,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:05:04,805 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385979851] [2019-12-28 04:05:04,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:05:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:05:05,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:05:05,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385979851] [2019-12-28 04:05:05,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:05:05,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:05:05,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1295598876] [2019-12-28 04:05:05,004 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:05:05,008 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:05:05,017 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 47 states and 58 transitions. [2019-12-28 04:05:05,020 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:05:05,169 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2019-12-28 04:05:05,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-28 04:05:05,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:05:05,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-28 04:05:05,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-28 04:05:05,170 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 10 states. [2019-12-28 04:05:05,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:05:05,299 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-28 04:05:05,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:05:05,299 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-12-28 04:05:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:05:05,300 INFO L225 Difference]: With dead ends: 259 [2019-12-28 04:05:05,300 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 04:05:05,300 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-12-28 04:05:05,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 04:05:05,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 04:05:05,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 04:05:05,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 04:05:05,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-28 04:05:05,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:05:05,301 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 04:05:05,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-28 04:05:05,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 04:05:05,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 04:05:05,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 04:05:05 BasicIcfg [2019-12-28 04:05:05,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 04:05:05,310 INFO L168 Benchmark]: Toolchain (without parser) took 4145.65 ms. Allocated memory was 137.9 MB in the beginning and 249.0 MB in the end (delta: 111.1 MB). Free memory was 99.8 MB in the beginning and 152.3 MB in the end (delta: -52.5 MB). Peak memory consumption was 58.7 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:05,311 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-28 04:05:05,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 874.70 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 99.4 MB in the beginning and 160.8 MB in the end (delta: -61.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:05,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.42 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 158.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:05,314 INFO L168 Benchmark]: Boogie Preprocessor took 49.18 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:05,315 INFO L168 Benchmark]: RCFGBuilder took 458.27 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 136.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:05,316 INFO L168 Benchmark]: TraceAbstraction took 2673.46 ms. Allocated memory was 203.9 MB in the beginning and 249.0 MB in the end (delta: 45.1 MB). Free memory was 136.2 MB in the beginning and 152.3 MB in the end (delta: -16.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2019-12-28 04:05:05,320 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 874.70 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 99.4 MB in the beginning and 160.8 MB in the end (delta: -61.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 80.42 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 158.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.18 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 157.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 458.27 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 136.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2673.46 ms. Allocated memory was 203.9 MB in the beginning and 249.0 MB in the end (delta: 45.1 MB). Free memory was 136.2 MB in the beginning and 152.3 MB in the end (delta: -16.1 MB). Peak memory consumption was 29.0 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: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 224 SDtfs, 367 SDslu, 593 SDs, 0 SdLazy, 93 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 16491 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...