/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/safe007_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:27:13,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:27:13,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:27:13,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:27:13,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:27:13,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:27:13,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:27:13,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:27:13,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:27:13,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:27:13,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:27:13,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:27:13,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:27:13,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:27:13,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:27:13,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:27:13,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:27:13,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:27:13,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:27:13,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:27:13,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:27:13,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:27:13,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:27:13,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:27:13,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 04:27:13,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 04:27:13,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 04:27:13,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 04:27:13,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 04:27:13,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 04:27:13,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:27:13,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:27:13,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:27:13,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:27:13,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:27:13,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:27:13,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:27:13,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:27:13,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:27:13,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:27:13,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:27:13,864 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 04:27:13,883 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:27:13,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:27:13,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:27:13,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:27:13,886 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:27:13,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:27:13,887 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:27:13,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:27:13,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:27:13,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:27:13,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:27:13,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:27:13,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:27:13,888 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:27:13,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:27:13,888 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:27:13,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:27:13,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:27:13,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:27:13,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:27:13,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:27:13,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:27:13,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:27:13,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:27:13,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:27:13,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:27:13,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:27:13,893 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:27:13,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:27:13,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:27:14,174 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:27:14,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:27:14,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:27:14,191 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:27:14,191 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:27:14,192 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2019-12-19 04:27:14,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec408d8d4/70d682e624304719a7d91662ed6b04f1/FLAG3f613c39f [2019-12-19 04:27:14,860 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:27:14,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.oepc.i [2019-12-19 04:27:14,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec408d8d4/70d682e624304719a7d91662ed6b04f1/FLAG3f613c39f [2019-12-19 04:27:15,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec408d8d4/70d682e624304719a7d91662ed6b04f1 [2019-12-19 04:27:15,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:27:15,192 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:27:15,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:27:15,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:27:15,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:27:15,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:15,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145a5125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15, skipping insertion in model container [2019-12-19 04:27:15,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:15,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:27:15,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:27:15,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:27:15,790 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:27:15,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:27:15,930 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:27:15,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15 WrapperNode [2019-12-19 04:27:15,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:27:15,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:27:15,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:27:15,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:27:15,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:15,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:15,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:27:15,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:27:15,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:27:15,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:27:15,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:15,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:15,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:15,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:15,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:15,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:16,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (1/1) ... [2019-12-19 04:27:16,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:27:16,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:27:16,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:27:16,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:27:16,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (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 04:27:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:27:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:27:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:27:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:27:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:27:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:27:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:27:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:27:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:27:16,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:27:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:27:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:27:16,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:27:16,077 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 04:27:16,431 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:27:16,431 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:27:16,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:27:16 BoogieIcfgContainer [2019-12-19 04:27:16,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:27:16,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:27:16,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:27:16,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:27:16,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:27:15" (1/3) ... [2019-12-19 04:27:16,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a44c14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:27:16, skipping insertion in model container [2019-12-19 04:27:16,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:27:15" (2/3) ... [2019-12-19 04:27:16,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a44c14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:27:16, skipping insertion in model container [2019-12-19 04:27:16,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:27:16" (3/3) ... [2019-12-19 04:27:16,440 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_tso.oepc.i [2019-12-19 04:27:16,450 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:27:16,451 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:27:16,457 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:27:16,458 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:27:16,489 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,490 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,490 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,492 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,492 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,493 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,493 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,493 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,494 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,494 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,494 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,494 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,496 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,496 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,496 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,496 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,497 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,497 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,502 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,503 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,503 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,503 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,510 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,511 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,511 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,511 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,517 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,518 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,518 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,519 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:27:16,538 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:27:16,559 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:27:16,559 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:27:16,559 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:27:16,559 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:27:16,559 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:27:16,560 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:27:16,561 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:27:16,561 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:27:16,577 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 55 transitions [2019-12-19 04:27:16,669 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-12-19 04:27:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-12-19 04:27:16,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:27:16,690 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:16,692 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 04:27:16,692 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:16,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:16,699 INFO L82 PathProgramCache]: Analyzing trace with hash 100870604, now seen corresponding path program 1 times [2019-12-19 04:27:16,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:16,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810579501] [2019-12-19 04:27:16,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:17,093 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 04:27:17,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810579501] [2019-12-19 04:27:17,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:17,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:27:17,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143387848] [2019-12-19 04:27:17,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:27:17,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:17,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:27:17,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:27:17,121 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-12-19 04:27:17,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:17,240 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-12-19 04:27:17,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:27:17,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-19 04:27:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:17,293 INFO L225 Difference]: With dead ends: 1296 [2019-12-19 04:27:17,293 INFO L226 Difference]: Without dead ends: 602 [2019-12-19 04:27:17,295 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:27:17,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-12-19 04:27:17,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-12-19 04:27:17,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-12-19 04:27:17,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-12-19 04:27:17,398 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-12-19 04:27:17,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:17,398 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-12-19 04:27:17,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:27:17,399 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-12-19 04:27:17,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:27:17,406 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:17,406 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 04:27:17,407 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:17,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:17,407 INFO L82 PathProgramCache]: Analyzing trace with hash -471697472, now seen corresponding path program 1 times [2019-12-19 04:27:17,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:17,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564558314] [2019-12-19 04:27:17,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:17,593 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 04:27:17,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564558314] [2019-12-19 04:27:17,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:17,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:27:17,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328508357] [2019-12-19 04:27:17,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:27:17,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:17,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:27:17,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:27:17,598 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-12-19 04:27:17,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:17,662 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-12-19 04:27:17,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:27:17,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-12-19 04:27:17,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:17,668 INFO L225 Difference]: With dead ends: 602 [2019-12-19 04:27:17,668 INFO L226 Difference]: Without dead ends: 539 [2019-12-19 04:27:17,669 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 04:27:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-12-19 04:27:17,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-12-19 04:27:17,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-12-19 04:27:17,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-12-19 04:27:17,709 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-12-19 04:27:17,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:17,712 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-12-19 04:27:17,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:27:17,712 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-12-19 04:27:17,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:27:17,716 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:17,716 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 04:27:17,717 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:17,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:17,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1145104615, now seen corresponding path program 1 times [2019-12-19 04:27:17,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:17,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182194438] [2019-12-19 04:27:17,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:17,887 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 04:27:17,888 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182194438] [2019-12-19 04:27:17,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:17,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:27:17,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903803893] [2019-12-19 04:27:17,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:27:17,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:17,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:27:17,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:27:17,890 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-12-19 04:27:17,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:17,973 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-12-19 04:27:17,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:27:17,973 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-19 04:27:17,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:17,976 INFO L225 Difference]: With dead ends: 404 [2019-12-19 04:27:17,976 INFO L226 Difference]: Without dead ends: 350 [2019-12-19 04:27:17,977 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:27:17,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-12-19 04:27:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-12-19 04:27:17,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-12-19 04:27:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-12-19 04:27:17,990 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-12-19 04:27:17,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:17,991 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-12-19 04:27:17,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:27:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-12-19 04:27:17,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:27:17,993 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:17,993 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, 1] [2019-12-19 04:27:17,993 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:17,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:17,993 INFO L82 PathProgramCache]: Analyzing trace with hash 608973843, now seen corresponding path program 1 times [2019-12-19 04:27:17,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:17,994 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106525584] [2019-12-19 04:27:17,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:18,197 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 04:27:18,197 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106525584] [2019-12-19 04:27:18,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:18,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:27:18,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16448266] [2019-12-19 04:27:18,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:27:18,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:18,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:27:18,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:27:18,200 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 8 states. [2019-12-19 04:27:18,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:18,334 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-12-19 04:27:18,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:27:18,335 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 04:27:18,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:18,337 INFO L225 Difference]: With dead ends: 521 [2019-12-19 04:27:18,338 INFO L226 Difference]: Without dead ends: 278 [2019-12-19 04:27:18,339 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 04:27:18,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-19 04:27:18,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-12-19 04:27:18,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-12-19 04:27:18,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-12-19 04:27:18,354 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-12-19 04:27:18,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:18,355 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-12-19 04:27:18,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:27:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-12-19 04:27:18,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:27:18,357 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:18,357 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, 1] [2019-12-19 04:27:18,357 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:18,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:18,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1362281377, now seen corresponding path program 2 times [2019-12-19 04:27:18,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:18,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050767116] [2019-12-19 04:27:18,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:18,563 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 04:27:18,564 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050767116] [2019-12-19 04:27:18,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:18,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:27:18,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508067314] [2019-12-19 04:27:18,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:27:18,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:18,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:27:18,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:27:18,566 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 8 states. [2019-12-19 04:27:18,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:18,744 INFO L93 Difference]: Finished difference Result 440 states and 1186 transitions. [2019-12-19 04:27:18,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:27:18,748 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 04:27:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:18,753 INFO L225 Difference]: With dead ends: 440 [2019-12-19 04:27:18,754 INFO L226 Difference]: Without dead ends: 254 [2019-12-19 04:27:18,754 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:27:18,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-19 04:27:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2019-12-19 04:27:18,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-12-19 04:27:18,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 673 transitions. [2019-12-19 04:27:18,764 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 673 transitions. Word has length 35 [2019-12-19 04:27:18,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:18,765 INFO L462 AbstractCegarLoop]: Abstraction has 254 states and 673 transitions. [2019-12-19 04:27:18,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:27:18,765 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 673 transitions. [2019-12-19 04:27:18,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:27:18,766 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:27:18,766 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, 1] [2019-12-19 04:27:18,768 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:27:18,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:27:18,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1957742869, now seen corresponding path program 3 times [2019-12-19 04:27:18,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:27:18,771 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11147051] [2019-12-19 04:27:18,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:27:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:27:18,922 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 04:27:18,923 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11147051] [2019-12-19 04:27:18,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:27:18,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:27:18,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049759933] [2019-12-19 04:27:18,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:27:18,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:27:18,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:27:18,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:27:18,925 INFO L87 Difference]: Start difference. First operand 254 states and 673 transitions. Second operand 8 states. [2019-12-19 04:27:19,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:27:19,012 INFO L93 Difference]: Finished difference Result 200 states and 511 transitions. [2019-12-19 04:27:19,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:27:19,012 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-12-19 04:27:19,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:27:19,012 INFO L225 Difference]: With dead ends: 200 [2019-12-19 04:27:19,013 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:27:19,013 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 04:27:19,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:27:19,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:27:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:27:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:27:19,014 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-12-19 04:27:19,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:27:19,014 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:27:19,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:27:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:27:19,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:27:19,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:27:19 BasicIcfg [2019-12-19 04:27:19,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:27:19,023 INFO L168 Benchmark]: Toolchain (without parser) took 3830.55 ms. Allocated memory was 144.7 MB in the beginning and 252.2 MB in the end (delta: 107.5 MB). Free memory was 101.2 MB in the beginning and 170.1 MB in the end (delta: -68.9 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:19,024 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 04:27:19,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.56 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 158.6 MB in the end (delta: -57.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:19,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.83 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:19,026 INFO L168 Benchmark]: Boogie Preprocessor took 24.81 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:19,027 INFO L168 Benchmark]: RCFGBuilder took 427.67 ms. Allocated memory is still 201.9 MB. Free memory was 154.7 MB in the beginning and 134.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:19,028 INFO L168 Benchmark]: TraceAbstraction took 2587.16 ms. Allocated memory was 201.9 MB in the beginning and 252.2 MB in the end (delta: 50.3 MB). Free memory was 134.0 MB in the beginning and 170.1 MB in the end (delta: -36.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:27:19,032 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.56 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 158.6 MB in the end (delta: -57.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.83 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.81 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 154.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 427.67 ms. Allocated memory is still 201.9 MB. Free memory was 154.7 MB in the beginning and 134.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2587.16 ms. Allocated memory was 201.9 MB in the beginning and 252.2 MB in the end (delta: 50.3 MB). Free memory was 134.0 MB in the beginning and 170.1 MB in the end (delta: -36.1 MB). Peak memory consumption was 14.3 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 395 SDslu, 764 SDs, 0 SdLazy, 113 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred 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, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 21102 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...