/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/safe004_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:21:57,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:21:57,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:21:57,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:21:57,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:21:57,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:21:57,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:21:57,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:21:57,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:21:57,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:21:57,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:21:57,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:21:57,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:21:57,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:21:57,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:21:57,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:21:57,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:21:57,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:21:57,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:21:57,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:21:57,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:21:57,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:21:57,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:21:57,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:21:57,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:21:57,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:21:57,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:21:57,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:21:57,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:21:57,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:21:57,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:21:57,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:21:57,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:21:57,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:21:57,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:21:57,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:21:57,865 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 04:21:57,900 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:21:57,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:21:57,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:21:57,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:21:57,902 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:21:57,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:21:57,902 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:21:57,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:21:57,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:21:57,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:21:57,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:21:57,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:21:57,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:21:57,907 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:21:57,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:21:57,907 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:21:57,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:21:57,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:21:57,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:21:57,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:21:57,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:21:57,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:21:57,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:21:57,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:21:57,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:21:57,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:21:57,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:21:57,912 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:21:57,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:21:57,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:21:58,217 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:21:58,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:21:58,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:21:58,236 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:21:58,236 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:21:58,237 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2019-12-19 04:21:58,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e12194a8d/f5812c85b9fe4380bd1db4794ae87246/FLAGaad4880ec [2019-12-19 04:21:58,840 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:21:58,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2019-12-19 04:21:58,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e12194a8d/f5812c85b9fe4380bd1db4794ae87246/FLAGaad4880ec [2019-12-19 04:21:59,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e12194a8d/f5812c85b9fe4380bd1db4794ae87246 [2019-12-19 04:21:59,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:21:59,121 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:21:59,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:21:59,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:21:59,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:21:59,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ceb2709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59, skipping insertion in model container [2019-12-19 04:21:59,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:21:59,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:21:59,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:21:59,627 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:21:59,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:21:59,765 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:21:59,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59 WrapperNode [2019-12-19 04:21:59,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:21:59,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:21:59,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:21:59,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:21:59,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:21:59,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:21:59,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:21:59,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:21:59,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (1/1) ... [2019-12-19 04:21:59,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:21:59,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:21:59,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:21:59,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:21:59,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (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 04:21:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:21:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:21:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:21:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:21:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:21:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:21:59,902 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:21:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:21:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:21:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:21:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:21:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:21:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:21:59,905 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 04:22:00,284 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:22:00,285 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:22:00,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:22:00 BoogieIcfgContainer [2019-12-19 04:22:00,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:22:00,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:22:00,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:22:00,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:22:00,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:21:59" (1/3) ... [2019-12-19 04:22:00,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8a77ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:22:00, skipping insertion in model container [2019-12-19 04:22:00,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:21:59" (2/3) ... [2019-12-19 04:22:00,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8a77ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:22:00, skipping insertion in model container [2019-12-19 04:22:00,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:22:00" (3/3) ... [2019-12-19 04:22:00,295 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2019-12-19 04:22:00,306 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:22:00,306 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:22:00,318 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:22:00,319 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:22:00,350 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,351 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,351 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,351 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,352 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,352 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,352 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,352 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,353 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,353 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,353 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,353 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,354 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,354 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,354 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,354 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,355 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,355 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,358 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,359 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,359 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,359 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,364 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,365 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,365 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,365 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,368 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,368 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,368 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,368 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:22:00,381 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:22:00,401 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:22:00,402 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:22:00,402 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:22:00,402 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:22:00,402 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:22:00,402 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:22:00,403 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:22:00,403 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:22:00,413 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:22:00,492 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:22:00,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:22:00,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:22:00,510 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:22:00,511 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] [2019-12-19 04:22:00,512 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:22:00,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:22:00,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1961534642, now seen corresponding path program 1 times [2019-12-19 04:22:00,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:22:00,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442356085] [2019-12-19 04:22:00,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:22:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:22:00,846 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 04:22:00,847 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442356085] [2019-12-19 04:22:00,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:22:00,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:22:00,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937764197] [2019-12-19 04:22:00,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:22:00,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:22:00,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:22:00,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:22:00,871 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:22:01,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:22:01,002 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:22:01,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:22:01,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:22:01,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:22:01,031 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:22:01,032 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:22:01,033 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:22:01,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:22:01,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:22:01,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:22:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:22:01,161 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:22:01,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:22:01,162 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:22:01,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:22:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:22:01,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:22:01,167 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:22:01,167 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:22:01,167 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:22:01,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:22:01,168 INFO L82 PathProgramCache]: Analyzing trace with hash 848017682, now seen corresponding path program 1 times [2019-12-19 04:22:01,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:22:01,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069060964] [2019-12-19 04:22:01,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:22:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:22:01,374 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 04:22:01,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069060964] [2019-12-19 04:22:01,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:22:01,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:22:01,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616071216] [2019-12-19 04:22:01,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:22:01,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:22:01,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:22:01,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:22:01,380 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:22:01,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:22:01,483 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:22:01,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:22:01,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:22:01,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:22:01,496 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:22:01,496 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:22:01,502 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 04:22:01,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:22:01,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:22:01,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:22:01,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:22:01,542 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:22:01,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:22:01,542 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:22:01,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:22:01,543 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:22:01,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:22:01,545 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:22:01,546 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 04:22:01,546 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:22:01,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:22:01,547 INFO L82 PathProgramCache]: Analyzing trace with hash 177866388, now seen corresponding path program 1 times [2019-12-19 04:22:01,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:22:01,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121957719] [2019-12-19 04:22:01,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:22:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:22:01,679 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 04:22:01,679 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121957719] [2019-12-19 04:22:01,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:22:01,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:22:01,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487353207] [2019-12-19 04:22:01,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:22:01,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:22:01,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:22:01,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:22:01,681 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:22:01,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:22:01,778 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:22:01,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:22:01,779 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:22:01,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:22:01,783 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:22:01,783 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:22:01,783 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 04:22:01,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:22:01,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:22:01,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:22:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:22:01,806 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:22:01,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:22:01,807 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:22:01,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:22:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:22:01,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:22:01,810 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:22:01,810 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 04:22:01,811 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:22:01,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:22:01,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1811476463, now seen corresponding path program 1 times [2019-12-19 04:22:01,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:22:01,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431108245] [2019-12-19 04:22:01,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:22:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:22:02,077 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 04:22:02,078 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431108245] [2019-12-19 04:22:02,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:22:02,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:22:02,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885200277] [2019-12-19 04:22:02,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:22:02,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:22:02,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:22:02,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:22:02,083 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 8 states. [2019-12-19 04:22:02,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:22:02,338 INFO L93 Difference]: Finished difference Result 474 states and 1253 transitions. [2019-12-19 04:22:02,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:22:02,339 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-12-19 04:22:02,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:22:02,340 INFO L225 Difference]: With dead ends: 474 [2019-12-19 04:22:02,340 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:22:02,342 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:22:02,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:22:02,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:22:02,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:22:02,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:22:02,344 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:22:02,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:22:02,345 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:22:02,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:22:02,345 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:22:02,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:22:02,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:22:02 BasicIcfg [2019-12-19 04:22:02,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:22:02,357 INFO L168 Benchmark]: Toolchain (without parser) took 3234.73 ms. Allocated memory was 144.2 MB in the beginning and 233.3 MB in the end (delta: 89.1 MB). Free memory was 100.6 MB in the beginning and 88.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 101.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:22:02,360 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 04:22:02,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.80 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 100.2 MB in the beginning and 159.1 MB in the end (delta: -58.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:22:02,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.04 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 156.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:22:02,371 INFO L168 Benchmark]: Boogie Preprocessor took 26.72 ms. Allocated memory is still 201.9 MB. Free memory was 156.4 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:22:02,372 INFO L168 Benchmark]: RCFGBuilder took 441.71 ms. Allocated memory is still 201.9 MB. Free memory was 155.1 MB in the beginning and 135.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-19 04:22:02,374 INFO L168 Benchmark]: TraceAbstraction took 2065.71 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 134.5 MB in the beginning and 88.0 MB in the end (delta: 46.5 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:22:02,389 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 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 643.80 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 100.2 MB in the beginning and 159.1 MB in the end (delta: -58.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.04 ms. Allocated memory is still 201.9 MB. Free memory was 159.1 MB in the beginning and 156.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.72 ms. Allocated memory is still 201.9 MB. Free memory was 156.4 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.71 ms. Allocated memory is still 201.9 MB. Free memory was 155.1 MB in the beginning and 135.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2065.71 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 134.5 MB in the beginning and 88.0 MB in the end (delta: 46.5 MB). Peak memory consumption was 78.0 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 166 SDtfs, 334 SDslu, 383 SDs, 0 SdLazy, 64 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 11482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...