/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/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 18:50:00,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 18:50:00,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 18:50:00,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 18:50:00,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 18:50:00,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 18:50:00,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 18:50:00,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 18:50:00,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 18:50:00,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 18:50:00,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 18:50:00,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 18:50:00,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 18:50:00,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 18:50:00,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 18:50:00,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 18:50:00,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 18:50:00,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 18:50:00,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 18:50:00,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 18:50:00,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 18:50:00,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 18:50:00,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 18:50:00,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 18:50:00,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 18:50:00,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 18:50:00,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 18:50:00,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 18:50:00,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 18:50:00,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 18:50:00,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 18:50:00,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 18:50:00,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 18:50:00,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 18:50:00,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 18:50:00,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 18:50:00,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 18:50:00,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 18:50:00,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 18:50:00,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 18:50:00,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 18:50:00,840 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-SemanticLbe.epf [2019-12-18 18:50:00,859 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 18:50:00,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 18:50:00,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 18:50:00,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 18:50:00,861 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 18:50:00,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 18:50:00,861 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 18:50:00,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 18:50:00,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 18:50:00,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 18:50:00,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 18:50:00,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 18:50:00,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 18:50:00,863 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 18:50:00,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 18:50:00,863 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 18:50:00,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 18:50:00,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 18:50:00,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 18:50:00,864 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 18:50:00,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 18:50:00,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:50:00,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 18:50:00,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 18:50:00,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 18:50:00,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 18:50:00,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 18:50:00,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 18:50:00,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 18:50:01,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 18:50:01,164 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 18:50:01,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 18:50:01,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 18:50:01,170 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 18:50:01,171 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-18 18:50:01,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57c5e7481/fa21f6d963a941aebf79238c6c84b6b9/FLAG3be1f6adf [2019-12-18 18:50:01,800 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 18:50:01,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-18 18:50:01,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57c5e7481/fa21f6d963a941aebf79238c6c84b6b9/FLAG3be1f6adf [2019-12-18 18:50:02,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57c5e7481/fa21f6d963a941aebf79238c6c84b6b9 [2019-12-18 18:50:02,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 18:50:02,078 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 18:50:02,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 18:50:02,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 18:50:02,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 18:50:02,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@739f7b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02, skipping insertion in model container [2019-12-18 18:50:02,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 18:50:02,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 18:50:02,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:50:02,682 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 18:50:02,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:50:02,815 INFO L208 MainTranslator]: Completed translation [2019-12-18 18:50:02,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02 WrapperNode [2019-12-18 18:50:02,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 18:50:02,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 18:50:02,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 18:50:02,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 18:50:02,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 18:50:02,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 18:50:02,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 18:50:02,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 18:50:02,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (1/1) ... [2019-12-18 18:50:02,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 18:50:02,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 18:50:02,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 18:50:02,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 18:50:02,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (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 18:50:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 18:50:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 18:50:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 18:50:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 18:50:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 18:50:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 18:50:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 18:50:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 18:50:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 18:50:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 18:50:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 18:50:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 18:50:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 18:50:02,965 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 18:50:03,327 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 18:50:03,328 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 18:50:03,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:50:03 BoogieIcfgContainer [2019-12-18 18:50:03,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 18:50:03,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 18:50:03,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 18:50:03,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 18:50:03,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:50:02" (1/3) ... [2019-12-18 18:50:03,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4024070b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:50:03, skipping insertion in model container [2019-12-18 18:50:03,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:50:02" (2/3) ... [2019-12-18 18:50:03,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4024070b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:50:03, skipping insertion in model container [2019-12-18 18:50:03,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:50:03" (3/3) ... [2019-12-18 18:50:03,337 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2019-12-18 18:50:03,346 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 18:50:03,347 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 18:50:03,355 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 18:50:03,356 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 18:50:03,383 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,384 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,384 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,386 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,386 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,387 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,387 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,387 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,388 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,388 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,388 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,388 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,395 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,395 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,395 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,396 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,396 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,396 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,401 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,401 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,401 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,402 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,407 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,408 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,408 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,408 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,411 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,412 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,412 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,412 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:50:03,426 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 18:50:03,443 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 18:50:03,444 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 18:50:03,444 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 18:50:03,444 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 18:50:03,444 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 18:50:03,444 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 18:50:03,444 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 18:50:03,444 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 18:50:03,457 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 18:50:03,459 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 18:50:03,518 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 18:50:03,518 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:50:03,528 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 18:50:03,530 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 18:50:03,547 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 18:50:03,547 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:50:03,548 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 18:50:03,550 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 18:50:03,551 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 18:50:05,050 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-18 18:50:05,050 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 18:50:05,054 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 18:50:05,064 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 18:50:05,066 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 18:50:05,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 18:50:05,073 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:50:05,074 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:50:05,075 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:50:05,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:50:05,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-18 18:50:05,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:50:05,090 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504109373] [2019-12-18 18:50:05,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:50:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:50:05,317 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 18:50:05,318 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504109373] [2019-12-18 18:50:05,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:50:05,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:50:05,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901480376] [2019-12-18 18:50:05,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:50:05,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:50:05,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:50:05,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:50:05,344 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 18:50:05,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:50:05,386 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-18 18:50:05,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:50:05,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 18:50:05,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:50:05,417 INFO L225 Difference]: With dead ends: 52 [2019-12-18 18:50:05,417 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 18:50:05,419 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 18:50:05,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 18:50:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 18:50:05,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 18:50:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 18:50:05,460 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 18:50:05,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:50:05,461 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 18:50:05,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:50:05,462 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 18:50:05,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:50:05,464 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:50:05,464 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:50:05,464 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:50:05,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:50:05,465 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-18 18:50:05,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:50:05,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304108777] [2019-12-18 18:50:05,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:50:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:50:05,590 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 18:50:05,590 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304108777] [2019-12-18 18:50:05,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:50:05,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:50:05,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256320143] [2019-12-18 18:50:05,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:50:05,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:50:05,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:50:05,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:50:05,595 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 18:50:05,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:50:05,614 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-18 18:50:05,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:50:05,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 18:50:05,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:50:05,616 INFO L225 Difference]: With dead ends: 42 [2019-12-18 18:50:05,616 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 18:50:05,617 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 18:50:05,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 18:50:05,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-18 18:50:05,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 18:50:05,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-18 18:50:05,624 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-18 18:50:05,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:50:05,624 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-18 18:50:05,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:50:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-18 18:50:05,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:50:05,625 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:50:05,625 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:50:05,626 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:50:05,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:50:05,626 INFO L82 PathProgramCache]: Analyzing trace with hash -939448808, now seen corresponding path program 1 times [2019-12-18 18:50:05,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:50:05,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873353323] [2019-12-18 18:50:05,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:50:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:50:05,702 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 18:50:05,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873353323] [2019-12-18 18:50:05,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:50:05,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:50:05,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635769419] [2019-12-18 18:50:05,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:50:05,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:50:05,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:50:05,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:50:05,705 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-18 18:50:05,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:50:05,720 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-18 18:50:05,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:50:05,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 18:50:05,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:50:05,722 INFO L225 Difference]: With dead ends: 32 [2019-12-18 18:50:05,722 INFO L226 Difference]: Without dead ends: 32 [2019-12-18 18:50:05,723 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 18:50:05,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-18 18:50:05,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-18 18:50:05,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-18 18:50:05,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2019-12-18 18:50:05,732 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 53 transitions. Word has length 9 [2019-12-18 18:50:05,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:50:05,732 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 53 transitions. [2019-12-18 18:50:05,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:50:05,733 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2019-12-18 18:50:05,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:50:05,734 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:50:05,734 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:50:05,735 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:50:05,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:50:05,735 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-18 18:50:05,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:50:05,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167923893] [2019-12-18 18:50:05,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:50:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:50:05,782 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 18:50:05,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167923893] [2019-12-18 18:50:05,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:50:05,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:50:05,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645384357] [2019-12-18 18:50:05,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:50:05,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:50:05,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:50:05,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:50:05,786 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. Second operand 4 states. [2019-12-18 18:50:05,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:50:05,807 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-18 18:50:05,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:50:05,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 18:50:05,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:50:05,809 INFO L225 Difference]: With dead ends: 36 [2019-12-18 18:50:05,809 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 18:50:05,809 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 18:50:05,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 18:50:05,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 18:50:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 18:50:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-18 18:50:05,813 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 10 [2019-12-18 18:50:05,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:50:05,814 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-18 18:50:05,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:50:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-18 18:50:05,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:50:05,815 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:50:05,815 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:50:05,815 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:50:05,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:50:05,815 INFO L82 PathProgramCache]: Analyzing trace with hash 941857909, now seen corresponding path program 2 times [2019-12-18 18:50:05,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:50:05,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170239363] [2019-12-18 18:50:05,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:50:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:50:05,945 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 18:50:05,945 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170239363] [2019-12-18 18:50:05,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:50:05,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:50:05,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650812959] [2019-12-18 18:50:05,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 18:50:05,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:50:05,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 18:50:05,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 18:50:05,947 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 5 states. [2019-12-18 18:50:05,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:50:05,984 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-18 18:50:05,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 18:50:05,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-18 18:50:05,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:50:05,985 INFO L225 Difference]: With dead ends: 31 [2019-12-18 18:50:05,985 INFO L226 Difference]: Without dead ends: 25 [2019-12-18 18:50:05,986 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 18:50:05,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-18 18:50:05,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-18 18:50:05,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-18 18:50:05,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-18 18:50:05,989 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-12-18 18:50:05,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:50:05,990 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-18 18:50:05,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 18:50:05,990 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-18 18:50:05,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:50:05,991 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:50:05,991 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:50:05,991 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:50:05,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:50:05,991 INFO L82 PathProgramCache]: Analyzing trace with hash 943327309, now seen corresponding path program 3 times [2019-12-18 18:50:05,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:50:05,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797886067] [2019-12-18 18:50:05,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:50:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:50:06,069 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 18:50:06,070 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797886067] [2019-12-18 18:50:06,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:50:06,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 18:50:06,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363045532] [2019-12-18 18:50:06,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 18:50:06,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:50:06,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 18:50:06,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 18:50:06,071 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 6 states. [2019-12-18 18:50:06,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:50:06,134 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-18 18:50:06,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 18:50:06,135 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 18:50:06,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:50:06,136 INFO L225 Difference]: With dead ends: 25 [2019-12-18 18:50:06,136 INFO L226 Difference]: Without dead ends: 18 [2019-12-18 18:50:06,136 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 18:50:06,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-18 18:50:06,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-18 18:50:06,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-18 18:50:06,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-18 18:50:06,139 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-18 18:50:06,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:50:06,139 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-18 18:50:06,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 18:50:06,140 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-18 18:50:06,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:50:06,140 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:50:06,140 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:50:06,141 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:50:06,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:50:06,141 INFO L82 PathProgramCache]: Analyzing trace with hash -889376455, now seen corresponding path program 1 times [2019-12-18 18:50:06,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:50:06,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134488742] [2019-12-18 18:50:06,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:50:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:50:06,178 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 18:50:06,179 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134488742] [2019-12-18 18:50:06,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:50:06,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:50:06,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918610083] [2019-12-18 18:50:06,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:50:06,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:50:06,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:50:06,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:50:06,181 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2019-12-18 18:50:06,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:50:06,194 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-12-18 18:50:06,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:50:06,194 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 18:50:06,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:50:06,195 INFO L225 Difference]: With dead ends: 17 [2019-12-18 18:50:06,195 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 18:50:06,195 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 18:50:06,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 18:50:06,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 18:50:06,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 18:50:06,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 18:50:06,196 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 18:50:06,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:50:06,196 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 18:50:06,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:50:06,197 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 18:50:06,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 18:50:06,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:50:06 BasicIcfg [2019-12-18 18:50:06,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 18:50:06,204 INFO L168 Benchmark]: Toolchain (without parser) took 4125.60 ms. Allocated memory was 145.2 MB in the beginning and 246.9 MB in the end (delta: 101.7 MB). Free memory was 101.4 MB in the beginning and 113.8 MB in the end (delta: -12.4 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:50:06,205 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 18:50:06,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.96 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 101.2 MB in the beginning and 161.0 MB in the end (delta: -59.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-12-18 18:50:06,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.51 ms. Allocated memory is still 203.4 MB. Free memory was 161.0 MB in the beginning and 158.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-18 18:50:06,207 INFO L168 Benchmark]: Boogie Preprocessor took 27.10 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 157.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:50:06,208 INFO L168 Benchmark]: RCFGBuilder took 438.29 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 136.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:50:06,209 INFO L168 Benchmark]: TraceAbstraction took 2870.60 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 136.7 MB in the beginning and 113.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. [2019-12-18 18:50:06,213 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.96 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 101.2 MB in the beginning and 161.0 MB in the end (delta: -59.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.51 ms. Allocated memory is still 203.4 MB. Free memory was 161.0 MB in the beginning and 158.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.10 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 157.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.29 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 136.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2870.60 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 136.7 MB in the beginning and 113.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 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: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, 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, 0.1s 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...