/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 22:48:44,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 22:48:44,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 22:48:44,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 22:48:44,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 22:48:44,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 22:48:44,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 22:48:44,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 22:48:44,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 22:48:44,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 22:48:44,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 22:48:44,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 22:48:44,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 22:48:44,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 22:48:44,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 22:48:44,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 22:48:44,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 22:48:44,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 22:48:44,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 22:48:44,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 22:48:44,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 22:48:44,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 22:48:44,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 22:48:44,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 22:48:44,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 22:48:44,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 22:48:44,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 22:48:44,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 22:48:44,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 22:48:44,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 22:48:44,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 22:48:44,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 22:48:44,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 22:48:44,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 22:48:44,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 22:48:44,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 22:48:44,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 22:48:44,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 22:48:44,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 22:48:44,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 22:48:44,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 22:48:44,840 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-VariableLbe.epf [2019-12-18 22:48:44,861 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 22:48:44,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 22:48:44,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 22:48:44,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 22:48:44,863 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 22:48:44,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 22:48:44,864 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 22:48:44,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 22:48:44,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 22:48:44,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 22:48:44,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 22:48:44,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 22:48:44,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 22:48:44,866 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 22:48:44,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 22:48:44,867 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 22:48:44,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 22:48:44,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 22:48:44,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 22:48:44,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 22:48:44,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 22:48:44,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:48:44,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 22:48:44,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 22:48:44,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 22:48:44,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 22:48:44,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 22:48:44,869 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 22:48:44,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 22:48:44,869 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 22:48:45,152 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 22:48:45,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 22:48:45,169 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 22:48:45,171 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 22:48:45,171 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 22:48:45,172 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-18 22:48:45,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cede52c38/84b243816fb7416788f19c12db6c3d27/FLAG71a9d05c5 [2019-12-18 22:48:45,807 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 22:48:45,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-18 22:48:45,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cede52c38/84b243816fb7416788f19c12db6c3d27/FLAG71a9d05c5 [2019-12-18 22:48:46,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cede52c38/84b243816fb7416788f19c12db6c3d27 [2019-12-18 22:48:46,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 22:48:46,103 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 22:48:46,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 22:48:46,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 22:48:46,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 22:48:46,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486dd87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46, skipping insertion in model container [2019-12-18 22:48:46,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 22:48:46,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 22:48:46,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:48:46,675 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 22:48:46,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:48:46,840 INFO L208 MainTranslator]: Completed translation [2019-12-18 22:48:46,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46 WrapperNode [2019-12-18 22:48:46,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 22:48:46,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 22:48:46,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 22:48:46,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 22:48:46,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 22:48:46,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 22:48:46,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 22:48:46,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 22:48:46,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (1/1) ... [2019-12-18 22:48:46,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 22:48:46,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 22:48:46,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 22:48:46,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 22:48:46,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (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 [2019-12-18 22:48:46,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 22:48:46,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 22:48:46,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 22:48:46,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 22:48:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 22:48:46,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 22:48:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 22:48:46,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 22:48:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 22:48:46,996 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 22:48:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 22:48:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 22:48:46,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 22:48:46,998 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 22:48:47,379 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 22:48:47,380 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 22:48:47,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:48:47 BoogieIcfgContainer [2019-12-18 22:48:47,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 22:48:47,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 22:48:47,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 22:48:47,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 22:48:47,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:48:46" (1/3) ... [2019-12-18 22:48:47,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685f3b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:48:47, skipping insertion in model container [2019-12-18 22:48:47,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:48:46" (2/3) ... [2019-12-18 22:48:47,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685f3b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:48:47, skipping insertion in model container [2019-12-18 22:48:47,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:48:47" (3/3) ... [2019-12-18 22:48:47,390 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2019-12-18 22:48:47,399 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 22:48:47,399 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 22:48:47,405 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 22:48:47,406 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 22:48:47,434 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,435 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,435 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,435 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,436 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,436 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,436 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,437 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,437 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,437 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,437 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,438 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,438 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,438 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,439 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,439 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,439 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,439 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,443 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,444 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,444 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,444 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,450 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,451 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,451 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,451 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,454 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,454 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,455 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,455 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:48:47,483 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 22:48:47,501 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 22:48:47,502 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 22:48:47,502 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 22:48:47,502 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 22:48:47,502 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 22:48:47,502 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 22:48:47,502 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 22:48:47,503 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 22:48:47,516 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 22:48:47,518 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 22:48:47,556 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 22:48:47,557 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:48:47,564 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 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:48:47,567 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 22:48:47,585 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 22:48:47,585 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:48:47,586 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 22 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:48:47,588 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 22:48:47,589 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 22:48:48,946 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-18 22:48:48,946 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 22:48:48,951 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 22:48:48,961 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 22:48:48,963 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 22:48:48,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 22:48:48,972 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:48:48,973 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:48:48,974 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:48:48,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:48:48,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-18 22:48:48,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:48:48,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010521617] [2019-12-18 22:48:48,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:48:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:48:49,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:48:49,223 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010521617] [2019-12-18 22:48:49,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:48:49,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:48:49,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442274574] [2019-12-18 22:48:49,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:48:49,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:48:49,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:48:49,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:48:49,253 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 22:48:49,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:48:49,296 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-18 22:48:49,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:48:49,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 22:48:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:48:49,330 INFO L225 Difference]: With dead ends: 52 [2019-12-18 22:48:49,331 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 22:48:49,335 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 [2019-12-18 22:48:49,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 22:48:49,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 22:48:49,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 22:48:49,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 22:48:49,390 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 22:48:49,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:48:49,391 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 22:48:49,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:48:49,391 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 22:48:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:48:49,394 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:48:49,394 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:48:49,394 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:48:49,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:48:49,395 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-18 22:48:49,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:48:49,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589799679] [2019-12-18 22:48:49,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:48:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:48:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:48:49,517 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589799679] [2019-12-18 22:48:49,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:48:49,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:48:49,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407449270] [2019-12-18 22:48:49,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:48:49,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:48:49,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:48:49,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:48:49,520 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 22:48:49,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:48:49,533 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-18 22:48:49,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:48:49,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 22:48:49,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:48:49,535 INFO L225 Difference]: With dead ends: 42 [2019-12-18 22:48:49,535 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 22:48:49,536 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 [2019-12-18 22:48:49,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 22:48:49,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-18 22:48:49,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 22:48:49,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-18 22:48:49,542 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-18 22:48:49,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:48:49,542 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-18 22:48:49,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:48:49,542 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-18 22:48:49,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:48:49,543 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:48:49,543 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:48:49,544 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:48:49,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:48:49,544 INFO L82 PathProgramCache]: Analyzing trace with hash -939448808, now seen corresponding path program 1 times [2019-12-18 22:48:49,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:48:49,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767687450] [2019-12-18 22:48:49,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:48:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:48:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:48:49,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767687450] [2019-12-18 22:48:49,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:48:49,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:48:49,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509785086] [2019-12-18 22:48:49,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:48:49,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:48:49,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:48:49,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:48:49,601 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-18 22:48:49,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:48:49,608 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-18 22:48:49,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:48:49,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 22:48:49,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:48:49,610 INFO L225 Difference]: With dead ends: 32 [2019-12-18 22:48:49,611 INFO L226 Difference]: Without dead ends: 32 [2019-12-18 22:48:49,612 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 [2019-12-18 22:48:49,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-18 22:48:49,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-18 22:48:49,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-18 22:48:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2019-12-18 22:48:49,618 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 53 transitions. Word has length 9 [2019-12-18 22:48:49,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:48:49,618 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 53 transitions. [2019-12-18 22:48:49,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:48:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2019-12-18 22:48:49,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:48:49,620 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:48:49,620 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:48:49,621 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:48:49,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:48:49,621 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-18 22:48:49,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:48:49,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486375810] [2019-12-18 22:48:49,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:48:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:48:49,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:48:49,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486375810] [2019-12-18 22:48:49,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:48:49,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:48:49,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561130258] [2019-12-18 22:48:49,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:48:49,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:48:49,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:48:49,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:48:49,704 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. Second operand 4 states. [2019-12-18 22:48:49,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:48:49,747 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-18 22:48:49,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:48:49,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 22:48:49,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:48:49,749 INFO L225 Difference]: With dead ends: 36 [2019-12-18 22:48:49,749 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 22:48:49,751 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 [2019-12-18 22:48:49,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 22:48:49,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 22:48:49,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 22:48:49,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-18 22:48:49,755 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 10 [2019-12-18 22:48:49,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:48:49,759 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-18 22:48:49,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:48:49,759 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-18 22:48:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:48:49,760 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:48:49,761 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:48:49,761 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:48:49,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:48:49,761 INFO L82 PathProgramCache]: Analyzing trace with hash 941857909, now seen corresponding path program 2 times [2019-12-18 22:48:49,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:48:49,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165838670] [2019-12-18 22:48:49,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:48:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:48:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:48:49,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165838670] [2019-12-18 22:48:49,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:48:49,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 22:48:49,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112124909] [2019-12-18 22:48:49,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 22:48:49,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:48:49,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 22:48:49,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:48:49,904 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 5 states. [2019-12-18 22:48:49,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:48:49,956 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-18 22:48:49,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 22:48:49,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-18 22:48:49,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:48:49,957 INFO L225 Difference]: With dead ends: 31 [2019-12-18 22:48:49,958 INFO L226 Difference]: Without dead ends: 25 [2019-12-18 22:48:49,958 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 [2019-12-18 22:48:49,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-18 22:48:49,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-18 22:48:49,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-18 22:48:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-18 22:48:49,962 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-12-18 22:48:49,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:48:49,962 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-18 22:48:49,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 22:48:49,962 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-18 22:48:49,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:48:49,963 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:48:49,963 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:48:49,963 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:48:49,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:48:49,964 INFO L82 PathProgramCache]: Analyzing trace with hash 943327309, now seen corresponding path program 3 times [2019-12-18 22:48:49,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:48:49,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199178416] [2019-12-18 22:48:49,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:48:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:48:50,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:48:50,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199178416] [2019-12-18 22:48:50,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:48:50,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 22:48:50,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778503012] [2019-12-18 22:48:50,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 22:48:50,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:48:50,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 22:48:50,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 22:48:50,050 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 6 states. [2019-12-18 22:48:50,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:48:50,119 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-18 22:48:50,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 22:48:50,121 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 22:48:50,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:48:50,121 INFO L225 Difference]: With dead ends: 25 [2019-12-18 22:48:50,121 INFO L226 Difference]: Without dead ends: 18 [2019-12-18 22:48:50,122 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 [2019-12-18 22:48:50,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-18 22:48:50,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-18 22:48:50,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-18 22:48:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-18 22:48:50,125 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-18 22:48:50,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:48:50,125 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-18 22:48:50,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 22:48:50,125 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-18 22:48:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:48:50,126 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:48:50,126 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:48:50,126 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:48:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:48:50,127 INFO L82 PathProgramCache]: Analyzing trace with hash -889376455, now seen corresponding path program 1 times [2019-12-18 22:48:50,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:48:50,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513775428] [2019-12-18 22:48:50,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:48:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:48:50,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:48:50,160 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513775428] [2019-12-18 22:48:50,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:48:50,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 22:48:50,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82877134] [2019-12-18 22:48:50,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:48:50,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:48:50,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:48:50,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:48:50,162 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2019-12-18 22:48:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:48:50,174 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-12-18 22:48:50,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:48:50,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:48:50,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:48:50,175 INFO L225 Difference]: With dead ends: 17 [2019-12-18 22:48:50,175 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 22:48:50,176 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 [2019-12-18 22:48:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 22:48:50,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 22:48:50,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 22:48:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 22:48:50,177 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 22:48:50,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:48:50,177 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 22:48:50,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:48:50,177 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 22:48:50,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 22:48:50,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 10:48:50 BasicIcfg [2019-12-18 22:48:50,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 22:48:50,184 INFO L168 Benchmark]: Toolchain (without parser) took 4080.46 ms. Allocated memory was 145.2 MB in the beginning and 246.9 MB in the end (delta: 101.7 MB). Free memory was 100.1 MB in the beginning and 132.7 MB in the end (delta: -32.5 MB). Peak memory consumption was 69.2 MB. Max. memory is 7.1 GB. [2019-12-18 22:48:50,185 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 22:48:50,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.95 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.7 MB in the beginning and 159.1 MB in the end (delta: -59.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-18 22:48:50,187 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.89 ms. Allocated memory is still 202.4 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 22:48:50,188 INFO L168 Benchmark]: Boogie Preprocessor took 27.40 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 22:48:50,189 INFO L168 Benchmark]: RCFGBuilder took 461.59 ms. Allocated memory is still 202.4 MB. Free memory was 155.7 MB in the beginning and 135.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-18 22:48:50,190 INFO L168 Benchmark]: TraceAbstraction took 2799.11 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 134.6 MB in the beginning and 132.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. [2019-12-18 22:48:50,194 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.95 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.7 MB in the beginning and 159.1 MB in the end (delta: -59.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.89 ms. Allocated memory is still 202.4 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.40 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 155.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.59 ms. Allocated memory is still 202.4 MB. Free memory was 155.7 MB in the beginning and 135.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2799.11 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 134.6 MB in the beginning and 132.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 46.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 442 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: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 52 SDslu, 58 SDs, 0 SdLazy, 49 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...