/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 03:49:03,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 03:49:03,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 03:49:03,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 03:49:03,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 03:49:03,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 03:49:03,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 03:49:03,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 03:49:03,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 03:49:03,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 03:49:03,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 03:49:03,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 03:49:03,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 03:49:03,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 03:49:03,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 03:49:03,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 03:49:03,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 03:49:03,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 03:49:03,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 03:49:03,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 03:49:03,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 03:49:03,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 03:49:03,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 03:49:03,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 03:49:03,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 03:49:03,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 03:49:03,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 03:49:03,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 03:49:03,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 03:49:03,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 03:49:03,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 03:49:03,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 03:49:03,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 03:49:03,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 03:49:03,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 03:49:03,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 03:49:03,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 03:49:03,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 03:49:03,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 03:49:03,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 03:49:03,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 03:49:03,892 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-SemanticLbe.epf [2019-12-27 03:49:03,918 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 03:49:03,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 03:49:03,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 03:49:03,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 03:49:03,920 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 03:49:03,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 03:49:03,925 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 03:49:03,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 03:49:03,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 03:49:03,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 03:49:03,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 03:49:03,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 03:49:03,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 03:49:03,926 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 03:49:03,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 03:49:03,927 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 03:49:03,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 03:49:03,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 03:49:03,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 03:49:03,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 03:49:03,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 03:49:03,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:49:03,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 03:49:03,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 03:49:03,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 03:49:03,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 03:49:03,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 03:49:03,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 03:49:03,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 03:49:04,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 03:49:04,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 03:49:04,241 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 03:49:04,243 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 03:49:04,243 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 03:49:04,244 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2019-12-27 03:49:04,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e38ffb4f/ba86fec5c0dc4cdfb7a9ede42fed7d52/FLAG7757dff77 [2019-12-27 03:49:04,865 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 03:49:04,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.oepc.i [2019-12-27 03:49:04,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e38ffb4f/ba86fec5c0dc4cdfb7a9ede42fed7d52/FLAG7757dff77 [2019-12-27 03:49:05,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e38ffb4f/ba86fec5c0dc4cdfb7a9ede42fed7d52 [2019-12-27 03:49:05,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 03:49:05,157 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 03:49:05,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 03:49:05,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 03:49:05,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 03:49:05,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e3448a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05, skipping insertion in model container [2019-12-27 03:49:05,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 03:49:05,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 03:49:05,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:49:05,636 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 03:49:05,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:49:05,787 INFO L208 MainTranslator]: Completed translation [2019-12-27 03:49:05,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05 WrapperNode [2019-12-27 03:49:05,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 03:49:05,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 03:49:05,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 03:49:05,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 03:49:05,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 03:49:05,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 03:49:05,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 03:49:05,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 03:49:05,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (1/1) ... [2019-12-27 03:49:05,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 03:49:05,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 03:49:05,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 03:49:05,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 03:49:05,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (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 [2019-12-27 03:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 03:49:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 03:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 03:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 03:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 03:49:05,939 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 03:49:05,939 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 03:49:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 03:49:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 03:49:05,940 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 03:49:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 03:49:05,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 03:49:05,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 03:49:05,942 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 03:49:06,275 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 03:49:06,276 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 03:49:06,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:49:06 BoogieIcfgContainer [2019-12-27 03:49:06,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 03:49:06,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 03:49:06,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 03:49:06,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 03:49:06,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:49:05" (1/3) ... [2019-12-27 03:49:06,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371b37ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:49:06, skipping insertion in model container [2019-12-27 03:49:06,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:49:05" (2/3) ... [2019-12-27 03:49:06,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371b37ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:49:06, skipping insertion in model container [2019-12-27 03:49:06,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:49:06" (3/3) ... [2019-12-27 03:49:06,285 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc.i [2019-12-27 03:49:06,295 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 03:49:06,295 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 03:49:06,301 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 03:49:06,303 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 03:49:06,331 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,331 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,331 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,332 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,332 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,333 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,333 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,333 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,334 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,334 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,334 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,334 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,335 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,335 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,335 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,336 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,336 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,336 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,340 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,341 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,341 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,341 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,350 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,351 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,351 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,352 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,354 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,355 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,355 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,355 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:49:06,378 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 03:49:06,397 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 03:49:06,397 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 03:49:06,397 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 03:49:06,397 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 03:49:06,398 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 03:49:06,398 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 03:49:06,398 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 03:49:06,398 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 03:49:06,413 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 03:49:06,415 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 03:49:06,483 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 03:49:06,483 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:49:06,494 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:49:06,498 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 03:49:06,533 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 03:49:06,533 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:49:06,536 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:49:06,537 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 03:49:06,539 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 03:49:08,100 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2019-12-27 03:49:08,101 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 03:49:08,105 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 03:49:08,115 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 03:49:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 03:49:08,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 03:49:08,124 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:49:08,125 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:49:08,126 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:49:08,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:49:08,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1824698528, now seen corresponding path program 1 times [2019-12-27 03:49:08,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:49:08,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620463787] [2019-12-27 03:49:08,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:49:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:49:08,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:49:08,371 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620463787] [2019-12-27 03:49:08,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:49:08,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:49:08,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032233664] [2019-12-27 03:49:08,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:49:08,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:49:08,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:49:08,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:49:08,397 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 03:49:08,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:49:08,428 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 03:49:08,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:49:08,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 03:49:08,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:49:08,459 INFO L225 Difference]: With dead ends: 42 [2019-12-27 03:49:08,459 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 03:49:08,464 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:49:08,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 03:49:08,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 03:49:08,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 03:49:08,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 03:49:08,505 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 03:49:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:49:08,506 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 03:49:08,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:49:08,507 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 03:49:08,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 03:49:08,508 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:49:08,508 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:49:08,508 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:49:08,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:49:08,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1592223242, now seen corresponding path program 1 times [2019-12-27 03:49:08,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:49:08,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292387932] [2019-12-27 03:49:08,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:49:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:49:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:49:08,636 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292387932] [2019-12-27 03:49:08,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:49:08,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:49:08,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998681858] [2019-12-27 03:49:08,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:49:08,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:49:08,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:49:08,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:49:08,639 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 03:49:08,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:49:08,673 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 03:49:08,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:49:08,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 03:49:08,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:49:08,675 INFO L225 Difference]: With dead ends: 36 [2019-12-27 03:49:08,675 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 03:49:08,678 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:49:08,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 03:49:08,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 03:49:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 03:49:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 03:49:08,683 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 03:49:08,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:49:08,684 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 03:49:08,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:49:08,684 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 03:49:08,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:49:08,685 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:49:08,685 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:49:08,685 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:49:08,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:49:08,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1186765067, now seen corresponding path program 1 times [2019-12-27 03:49:08,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:49:08,687 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393772677] [2019-12-27 03:49:08,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:49:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:49:08,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:49:08,812 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393772677] [2019-12-27 03:49:08,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:49:08,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:49:08,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263620795] [2019-12-27 03:49:08,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:49:08,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:49:08,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:49:08,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:49:08,815 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-27 03:49:08,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:49:08,840 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 03:49:08,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:49:08,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 03:49:08,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:49:08,841 INFO L225 Difference]: With dead ends: 25 [2019-12-27 03:49:08,841 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 03:49:08,842 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:49:08,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 03:49:08,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 03:49:08,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 03:49:08,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 03:49:08,845 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 03:49:08,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:49:08,846 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 03:49:08,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:49:08,846 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 03:49:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:49:08,847 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:49:08,847 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:49:08,847 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:49:08,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:49:08,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1690191566, now seen corresponding path program 1 times [2019-12-27 03:49:08,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:49:08,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661304534] [2019-12-27 03:49:08,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:49:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:49:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:49:08,890 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661304534] [2019-12-27 03:49:08,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:49:08,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:49:08,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710280490] [2019-12-27 03:49:08,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:49:08,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:49:08,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:49:08,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:49:08,892 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 03:49:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:49:08,908 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 03:49:08,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:49:08,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 03:49:08,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:49:08,909 INFO L225 Difference]: With dead ends: 16 [2019-12-27 03:49:08,909 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 03:49:08,910 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:49:08,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 03:49:08,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 03:49:08,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 03:49:08,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 03:49:08,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 03:49:08,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:49:08,911 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 03:49:08,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:49:08,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 03:49:08,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 03:49:08,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:49:08 BasicIcfg [2019-12-27 03:49:08,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 03:49:08,918 INFO L168 Benchmark]: Toolchain (without parser) took 3760.88 ms. Allocated memory was 147.3 MB in the beginning and 244.8 MB in the end (delta: 97.5 MB). Free memory was 102.2 MB in the beginning and 132.6 MB in the end (delta: -30.4 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:08,919 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 03:49:08,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.18 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.8 MB in the beginning and 161.4 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:08,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.20 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:08,921 INFO L168 Benchmark]: Boogie Preprocessor took 31.17 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 157.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:08,922 INFO L168 Benchmark]: RCFGBuilder took 406.01 ms. Allocated memory is still 204.5 MB. Free memory was 157.5 MB in the beginning and 137.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:08,923 INFO L168 Benchmark]: TraceAbstraction took 2637.40 ms. Allocated memory was 204.5 MB in the beginning and 244.8 MB in the end (delta: 40.4 MB). Free memory was 137.0 MB in the beginning and 132.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. [2019-12-27 03:49:08,927 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 630.18 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.8 MB in the beginning and 161.4 MB in the end (delta: -59.6 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.20 ms. Allocated memory is still 204.5 MB. Free memory was 161.4 MB in the beginning and 159.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.17 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 157.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 406.01 ms. Allocated memory is still 204.5 MB. Free memory was 157.5 MB in the beginning and 137.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2637.40 ms. Allocated memory was 204.5 MB in the beginning and 244.8 MB in the end (delta: 40.4 MB). Free memory was 137.0 MB in the beginning and 132.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 243 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 25 SDslu, 34 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 802 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...