/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/safe035_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 04:15:38,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 04:15:38,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 04:15:38,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 04:15:38,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 04:15:38,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 04:15:38,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 04:15:38,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 04:15:38,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 04:15:38,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 04:15:38,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 04:15:38,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 04:15:38,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 04:15:38,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 04:15:38,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 04:15:38,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 04:15:38,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 04:15:38,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 04:15:38,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 04:15:38,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 04:15:38,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 04:15:38,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 04:15:38,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 04:15:38,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 04:15:38,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 04:15:38,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 04:15:38,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 04:15:38,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 04:15:38,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 04:15:38,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 04:15:38,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 04:15:38,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 04:15:38,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 04:15:38,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 04:15:38,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 04:15:38,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 04:15:38,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 04:15:38,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 04:15:38,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 04:15:38,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 04:15:38,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 04:15:38,903 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 04:15:38,926 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 04:15:38,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 04:15:38,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 04:15:38,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 04:15:38,929 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 04:15:38,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 04:15:38,930 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 04:15:38,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 04:15:38,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 04:15:38,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 04:15:38,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 04:15:38,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 04:15:38,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 04:15:38,932 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 04:15:38,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 04:15:38,933 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 04:15:38,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 04:15:38,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 04:15:38,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 04:15:38,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 04:15:38,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 04:15:38,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:15:38,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 04:15:38,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 04:15:38,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 04:15:38,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 04:15:38,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 04:15:38,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 04:15:38,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 04:15:39,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 04:15:39,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 04:15:39,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 04:15:39,209 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 04:15:39,209 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 04:15:39,209 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2019-12-27 04:15:39,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad46cca7/98b1b3908bcf4a198302772abc5e638f/FLAG2a340240c [2019-12-27 04:15:39,805 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 04:15:39,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2019-12-27 04:15:39,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad46cca7/98b1b3908bcf4a198302772abc5e638f/FLAG2a340240c [2019-12-27 04:15:40,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad46cca7/98b1b3908bcf4a198302772abc5e638f [2019-12-27 04:15:40,149 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 04:15:40,151 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 04:15:40,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 04:15:40,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 04:15:40,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 04:15:40,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a8274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40, skipping insertion in model container [2019-12-27 04:15:40,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 04:15:40,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 04:15:40,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:15:40,705 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 04:15:40,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:15:40,833 INFO L208 MainTranslator]: Completed translation [2019-12-27 04:15:40,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40 WrapperNode [2019-12-27 04:15:40,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 04:15:40,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 04:15:40,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 04:15:40,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 04:15:40,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 04:15:40,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 04:15:40,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 04:15:40,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 04:15:40,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (1/1) ... [2019-12-27 04:15:40,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 04:15:40,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 04:15:40,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 04:15:40,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 04:15:40,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (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 04:15:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 04:15:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 04:15:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 04:15:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 04:15:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 04:15:40,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 04:15:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 04:15:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 04:15:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 04:15:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 04:15:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 04:15:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 04:15:40,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 04:15:40,992 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 04:15:41,338 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 04:15:41,338 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 04:15:41,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:15:41 BoogieIcfgContainer [2019-12-27 04:15:41,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 04:15:41,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 04:15:41,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 04:15:41,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 04:15:41,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 04:15:40" (1/3) ... [2019-12-27 04:15:41,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe6818d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:15:41, skipping insertion in model container [2019-12-27 04:15:41,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:15:40" (2/3) ... [2019-12-27 04:15:41,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe6818d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:15:41, skipping insertion in model container [2019-12-27 04:15:41,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:15:41" (3/3) ... [2019-12-27 04:15:41,348 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc.i [2019-12-27 04:15:41,357 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 04:15:41,357 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 04:15:41,364 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 04:15:41,364 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 04:15:41,401 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,402 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,402 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,402 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,403 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,403 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,404 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,404 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,404 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,405 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,405 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,405 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,406 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,406 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,406 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,406 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,407 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,407 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,411 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,411 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,412 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,412 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,418 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,418 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,419 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,419 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,421 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,421 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,422 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,422 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:15:41,437 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 04:15:41,455 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:15:41,456 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:15:41,456 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:15:41,456 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:15:41,456 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:15:41,456 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:15:41,456 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:15:41,457 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:15:41,470 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 04:15:41,472 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 04:15:41,520 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 04:15:41,520 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:15:41,529 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 04:15:41,533 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 04:15:41,568 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 04:15:41,568 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 04:15:41,570 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 04:15:41,571 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 04:15:41,574 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 04:15:43,208 INFO L206 etLargeBlockEncoding]: Checked pairs total: 429 [2019-12-27 04:15:43,208 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 04:15:43,212 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 04:15:43,222 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 04:15:43,224 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 04:15:43,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 04:15:43,231 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:15:43,232 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:15:43,232 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:15:43,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:15:43,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1861325362, now seen corresponding path program 1 times [2019-12-27 04:15:43,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:15:43,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265247214] [2019-12-27 04:15:43,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:15:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:15:43,455 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 04:15:43,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265247214] [2019-12-27 04:15:43,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:15:43,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 04:15:43,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133305705] [2019-12-27 04:15:43,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:15:43,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:15:43,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:15:43,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:15:43,475 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 04:15:43,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:15:43,510 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 04:15:43,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:15:43,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 04:15:43,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:15:43,523 INFO L225 Difference]: With dead ends: 42 [2019-12-27 04:15:43,523 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 04:15:43,525 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 04:15:43,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 04:15:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 04:15:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 04:15:43,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 04:15:43,564 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 04:15:43,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:15:43,565 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 04:15:43,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:15:43,566 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 04:15:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 04:15:43,567 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:15:43,567 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:15:43,567 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:15:43,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:15:43,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1866511351, now seen corresponding path program 1 times [2019-12-27 04:15:43,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:15:43,568 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791468612] [2019-12-27 04:15:43,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:15:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:15:43,629 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 04:15:43,630 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791468612] [2019-12-27 04:15:43,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:15:43,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:15:43,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647668989] [2019-12-27 04:15:43,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:15:43,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:15:43,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:15:43,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:15:43,633 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 04:15:43,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:15:43,652 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 04:15:43,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:15:43,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 04:15:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:15:43,654 INFO L225 Difference]: With dead ends: 36 [2019-12-27 04:15:43,654 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 04:15:43,655 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 04:15:43,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 04:15:43,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 04:15:43,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 04:15:43,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 04:15:43,659 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 04:15:43,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:15:43,660 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 04:15:43,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:15:43,660 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 04:15:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 04:15:43,661 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:15:43,661 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:15:43,661 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:15:43,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:15:43,661 INFO L82 PathProgramCache]: Analyzing trace with hash 2027276793, now seen corresponding path program 1 times [2019-12-27 04:15:43,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:15:43,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010104120] [2019-12-27 04:15:43,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:15:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:15:43,843 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 04:15:43,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010104120] [2019-12-27 04:15:43,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:15:43,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:15:43,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229520067] [2019-12-27 04:15:43,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:15:43,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:15:43,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:15:43,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:15:43,845 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 5 states. [2019-12-27 04:15:43,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:15:43,886 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 04:15:43,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 04:15:43,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 04:15:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:15:43,887 INFO L225 Difference]: With dead ends: 25 [2019-12-27 04:15:43,887 INFO L226 Difference]: Without dead ends: 19 [2019-12-27 04:15:43,887 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:15:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-27 04:15:43,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-27 04:15:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-27 04:15:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-27 04:15:43,891 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-12-27 04:15:43,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:15:43,892 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-27 04:15:43,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:15:43,892 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-12-27 04:15:43,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 04:15:43,893 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:15:43,893 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:15:43,893 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:15:43,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:15:43,893 INFO L82 PathProgramCache]: Analyzing trace with hash 2029948683, now seen corresponding path program 2 times [2019-12-27 04:15:43,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:15:43,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401369941] [2019-12-27 04:15:43,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:15:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:15:43,977 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 04:15:43,977 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401369941] [2019-12-27 04:15:43,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:15:43,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 04:15:43,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044722320] [2019-12-27 04:15:43,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 04:15:43,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:15:43,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 04:15:43,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:15:43,979 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 6 states. [2019-12-27 04:15:44,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:15:44,055 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-12-27 04:15:44,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 04:15:44,055 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 04:15:44,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:15:44,056 INFO L225 Difference]: With dead ends: 19 [2019-12-27 04:15:44,056 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 04:15:44,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 04:15:44,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 04:15:44,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 04:15:44,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 04:15:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 04:15:44,059 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-27 04:15:44,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:15:44,059 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 04:15:44,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 04:15:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 04:15:44,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:15:44,060 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:15:44,060 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:15:44,060 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:15:44,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:15:44,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1498585343, now seen corresponding path program 1 times [2019-12-27 04:15:44,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:15:44,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426139941] [2019-12-27 04:15:44,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:15:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:15:44,100 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 04:15:44,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426139941] [2019-12-27 04:15:44,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:15:44,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:15:44,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921828565] [2019-12-27 04:15:44,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:15:44,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:15:44,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:15:44,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:15:44,103 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 04:15:44,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:15:44,118 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-27 04:15:44,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:15:44,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:15:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:15:44,119 INFO L225 Difference]: With dead ends: 18 [2019-12-27 04:15:44,119 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 04:15:44,119 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 04:15:44,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 04:15:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 04:15:44,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 04:15:44,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 04:15:44,122 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-27 04:15:44,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:15:44,122 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 04:15:44,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:15:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 04:15:44,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 04:15:44,123 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:15:44,123 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:15:44,123 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:15:44,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:15:44,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1496019473, now seen corresponding path program 2 times [2019-12-27 04:15:44,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:15:44,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737552079] [2019-12-27 04:15:44,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:15:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:15:44,160 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 04:15:44,160 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737552079] [2019-12-27 04:15:44,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:15:44,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 04:15:44,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897751255] [2019-12-27 04:15:44,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 04:15:44,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:15:44,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 04:15:44,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 04:15:44,162 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 04:15:44,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:15:44,175 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 04:15:44,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 04:15:44,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 04:15:44,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:15:44,176 INFO L225 Difference]: With dead ends: 11 [2019-12-27 04:15:44,176 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 04:15:44,176 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 04:15:44,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 04:15:44,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 04:15:44,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 04:15:44,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 04:15:44,177 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 04:15:44,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:15:44,178 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 04:15:44,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 04:15:44,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 04:15:44,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 04:15:44,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 04:15:44 BasicIcfg [2019-12-27 04:15:44,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 04:15:44,185 INFO L168 Benchmark]: Toolchain (without parser) took 4033.80 ms. Allocated memory was 139.5 MB in the beginning and 244.8 MB in the end (delta: 105.4 MB). Free memory was 102.6 MB in the beginning and 102.9 MB in the end (delta: -246.8 kB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. [2019-12-27 04:15:44,186 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 04:15:44,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.89 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 160.2 MB in the end (delta: -57.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-27 04:15:44,188 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.00 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:15:44,188 INFO L168 Benchmark]: Boogie Preprocessor took 45.79 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:15:44,189 INFO L168 Benchmark]: RCFGBuilder took 405.86 ms. Allocated memory is still 203.4 MB. Free memory was 156.4 MB in the beginning and 136.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 04:15:44,190 INFO L168 Benchmark]: TraceAbstraction took 2841.41 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 135.4 MB in the beginning and 102.9 MB in the end (delta: 32.6 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2019-12-27 04:15:44,195 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.89 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 160.2 MB in the end (delta: -57.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.00 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.79 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 405.86 ms. Allocated memory is still 203.4 MB. Free memory was 156.4 MB in the beginning and 136.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2841.41 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 135.4 MB in the beginning and 102.9 MB in the end (delta: 32.6 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 223 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 429 CheckedPairsTotal, 46 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: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 35 SDslu, 48 SDs, 0 SdLazy, 52 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1314 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...