/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:15:27,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:15:27,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:15:27,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:15:27,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:15:27,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:15:27,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:15:27,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:15:27,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:15:27,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:15:27,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:15:27,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:15:27,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:15:27,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:15:27,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:15:27,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:15:27,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:15:27,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:15:27,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:15:27,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:15:27,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:15:27,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:15:27,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:15:27,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:15:27,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:15:27,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:15:27,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:15:27,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:15:27,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:15:27,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:15:27,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:15:27,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:15:27,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:15:27,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:15:27,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:15:27,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:15:27,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:15:27,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:15:27,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:15:27,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:15:27,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:15:27,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:15:27,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:15:27,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:15:27,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:15:27,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:15:27,872 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:15:27,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:15:27,872 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:15:27,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:15:27,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:15:27,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:15:27,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:15:27,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:15:27,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:15:27,874 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:15:27,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:15:27,874 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:15:27,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:15:27,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:15:27,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:15:27,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:15:27,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:15:27,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:15:27,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:15:27,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:15:27,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:15:27,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:15:27,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:15:27,876 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:15:27,877 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:15:27,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:15:27,877 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:15:28,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:15:28,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:15:28,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:15:28,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:15:28,244 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:15:28,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2020-10-22 02:15:28,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/798c0e574/98fd3af3de454335b66bba7116973493/FLAGa1645899e [2020-10-22 02:15:28,855 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:15:28,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2020-10-22 02:15:28,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/798c0e574/98fd3af3de454335b66bba7116973493/FLAGa1645899e [2020-10-22 02:15:29,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/798c0e574/98fd3af3de454335b66bba7116973493 [2020-10-22 02:15:29,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:15:29,181 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:15:29,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:15:29,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:15:29,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:15:29,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:29,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1537aac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29, skipping insertion in model container [2020-10-22 02:15:29,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:29,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:15:29,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:15:29,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:15:29,813 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:15:29,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:15:29,959 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:15:29,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29 WrapperNode [2020-10-22 02:15:29,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:15:29,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:15:29,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:15:29,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:15:29,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:29,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:30,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:15:30,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:15:30,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:15:30,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:15:30,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:30,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:30,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:30,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:30,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:30,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:30,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (1/1) ... [2020-10-22 02:15:30,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:15:30,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:15:30,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:15:30,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:15:30,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (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 [2020-10-22 02:15:30,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:15:30,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:15:30,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:15:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:15:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:15:30,128 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:15:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:15:30,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:15:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:15:30,130 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:15:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:15:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:15:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:15:30,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:15:30,134 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:15:30,505 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:15:30,506 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:15:30,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:15:30 BoogieIcfgContainer [2020-10-22 02:15:30,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:15:30,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:15:30,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:15:30,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:15:30,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:15:29" (1/3) ... [2020-10-22 02:15:30,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b3011f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:15:30, skipping insertion in model container [2020-10-22 02:15:30,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:15:29" (2/3) ... [2020-10-22 02:15:30,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b3011f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:15:30, skipping insertion in model container [2020-10-22 02:15:30,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:15:30" (3/3) ... [2020-10-22 02:15:30,519 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_tso.oepc.i [2020-10-22 02:15:30,531 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:15:30,531 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:15:30,539 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:15:30,540 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:15:30,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,574 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,574 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,576 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,576 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,578 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,578 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,579 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,583 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,584 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,584 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,584 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,590 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,591 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,593 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,594 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:15:30,606 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:15:30,621 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:15:30,642 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:15:30,642 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:15:30,642 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:15:30,642 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:15:30,642 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:15:30,643 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:15:30,643 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:15:30,643 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:15:30,657 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:15:30,658 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:15:30,660 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 02:15:30,661 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 02:15:30,713 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 02:15:30,713 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:15:30,722 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-22 02:15:30,725 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 02:15:32,429 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-22 02:15:32,538 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-10-22 02:15:32,538 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-10-22 02:15:32,546 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 02:15:32,575 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 02:15:32,578 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 02:15:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:15:32,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:32,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:32,588 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:32,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:32,594 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-10-22 02:15:32,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:32,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110398756] [2020-10-22 02:15:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:32,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110398756] [2020-10-22 02:15:32,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:32,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:15:32,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1862070020] [2020-10-22 02:15:32,814 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:32,817 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:32,832 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:15:32,832 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:32,837 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:32,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:15:32,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:32,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:15:32,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:15:32,854 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 02:15:32,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:32,878 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 02:15:32,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:15:32,880 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 02:15:32,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:32,896 INFO L225 Difference]: With dead ends: 362 [2020-10-22 02:15:32,896 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 02:15:32,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:15:32,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 02:15:32,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 02:15:32,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 02:15:32,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 02:15:32,995 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 02:15:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:32,996 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 02:15:32,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:15:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 02:15:32,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:15:32,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:32,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:32,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:15:32,998 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:32,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:32,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-10-22 02:15:33,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:33,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547815054] [2020-10-22 02:15:33,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:33,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547815054] [2020-10-22 02:15:33,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:33,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:15:33,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [703135521] [2020-10-22 02:15:33,147 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:33,148 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:33,150 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 02:15:33,150 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:33,150 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:33,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:15:33,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:33,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:15:33,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:15:33,153 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-22 02:15:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:33,273 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-22 02:15:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:15:33,274 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 02:15:33,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:33,279 INFO L225 Difference]: With dead ends: 330 [2020-10-22 02:15:33,279 INFO L226 Difference]: Without dead ends: 266 [2020-10-22 02:15:33,280 INFO L677 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 [2020-10-22 02:15:33,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-22 02:15:33,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-22 02:15:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-22 02:15:33,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-22 02:15:33,320 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-22 02:15:33,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:33,321 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-22 02:15:33,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:15:33,321 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-22 02:15:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:15:33,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:33,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:33,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:15:33,324 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:33,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:33,324 INFO L82 PathProgramCache]: Analyzing trace with hash 36377952, now seen corresponding path program 1 times [2020-10-22 02:15:33,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:33,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033847175] [2020-10-22 02:15:33,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:33,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:33,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033847175] [2020-10-22 02:15:33,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:33,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:15:33,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1682747520] [2020-10-22 02:15:33,412 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:33,413 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:33,414 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-10-22 02:15:33,415 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:33,473 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:33,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:15:33,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:33,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:15:33,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:15:33,474 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-10-22 02:15:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:33,507 INFO L93 Difference]: Finished difference Result 282 states and 760 transitions. [2020-10-22 02:15:33,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:15:33,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-22 02:15:33,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:33,510 INFO L225 Difference]: With dead ends: 282 [2020-10-22 02:15:33,510 INFO L226 Difference]: Without dead ends: 234 [2020-10-22 02:15:33,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:15:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-22 02:15:33,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-10-22 02:15:33,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-22 02:15:33,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 640 transitions. [2020-10-22 02:15:33,523 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 640 transitions. Word has length 10 [2020-10-22 02:15:33,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:33,524 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 640 transitions. [2020-10-22 02:15:33,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:15:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 640 transitions. [2020-10-22 02:15:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:15:33,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:33,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:33,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:15:33,526 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:33,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:33,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1113237188, now seen corresponding path program 1 times [2020-10-22 02:15:33,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:33,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976943558] [2020-10-22 02:15:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:33,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976943558] [2020-10-22 02:15:33,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:33,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:15:33,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2144265258] [2020-10-22 02:15:33,603 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:33,604 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:33,606 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2020-10-22 02:15:33,606 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:33,692 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:33,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:15:33,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:33,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:15:33,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:15:33,694 INFO L87 Difference]: Start difference. First operand 234 states and 640 transitions. Second operand 5 states. [2020-10-22 02:15:33,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:33,752 INFO L93 Difference]: Finished difference Result 250 states and 660 transitions. [2020-10-22 02:15:33,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:15:33,753 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-22 02:15:33,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:33,755 INFO L225 Difference]: With dead ends: 250 [2020-10-22 02:15:33,755 INFO L226 Difference]: Without dead ends: 218 [2020-10-22 02:15:33,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:15:33,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-22 02:15:33,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-22 02:15:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-22 02:15:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 588 transitions. [2020-10-22 02:15:33,765 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 588 transitions. Word has length 11 [2020-10-22 02:15:33,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:33,766 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 588 transitions. [2020-10-22 02:15:33,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:15:33,766 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 588 transitions. [2020-10-22 02:15:33,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:15:33,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:33,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:33,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:15:33,769 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:33,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:33,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1329445606, now seen corresponding path program 1 times [2020-10-22 02:15:33,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:33,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566988251] [2020-10-22 02:15:33,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:33,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:33,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566988251] [2020-10-22 02:15:33,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:33,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:15:33,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1973681207] [2020-10-22 02:15:33,842 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:33,844 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:33,853 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 56 transitions. [2020-10-22 02:15:33,854 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:34,159 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:34,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:15:34,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:34,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:15:34,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:15:34,161 INFO L87 Difference]: Start difference. First operand 218 states and 588 transitions. Second operand 5 states. [2020-10-22 02:15:34,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:34,203 INFO L93 Difference]: Finished difference Result 266 states and 698 transitions. [2020-10-22 02:15:34,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:15:34,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 02:15:34,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:34,205 INFO L225 Difference]: With dead ends: 266 [2020-10-22 02:15:34,205 INFO L226 Difference]: Without dead ends: 116 [2020-10-22 02:15:34,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:15:34,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-22 02:15:34,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-22 02:15:34,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-22 02:15:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 278 transitions. [2020-10-22 02:15:34,211 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 278 transitions. Word has length 12 [2020-10-22 02:15:34,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:34,211 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 278 transitions. [2020-10-22 02:15:34,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:15:34,211 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 278 transitions. [2020-10-22 02:15:34,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:15:34,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:34,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:34,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:15:34,213 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:34,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:34,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1405608924, now seen corresponding path program 1 times [2020-10-22 02:15:34,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:34,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295715334] [2020-10-22 02:15:34,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:34,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295715334] [2020-10-22 02:15:34,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:34,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:15:34,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1528121184] [2020-10-22 02:15:34,278 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:34,280 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:34,283 INFO L252 McrAutomatonBuilder]: Finished intersection with 24 states and 32 transitions. [2020-10-22 02:15:34,283 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:34,327 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-22 02:15:34,327 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:15:34,360 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4605#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 02:15:34,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:15:34,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:34,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:15:34,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:15:34,361 INFO L87 Difference]: Start difference. First operand 116 states and 278 transitions. Second operand 5 states. [2020-10-22 02:15:34,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:34,413 INFO L93 Difference]: Finished difference Result 110 states and 239 transitions. [2020-10-22 02:15:34,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:15:34,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:15:34,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:34,416 INFO L225 Difference]: With dead ends: 110 [2020-10-22 02:15:34,416 INFO L226 Difference]: Without dead ends: 70 [2020-10-22 02:15:34,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:15:34,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-22 02:15:34,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-10-22 02:15:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-22 02:15:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 129 transitions. [2020-10-22 02:15:34,420 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 129 transitions. Word has length 14 [2020-10-22 02:15:34,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:34,421 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 129 transitions. [2020-10-22 02:15:34,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:15:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 129 transitions. [2020-10-22 02:15:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:15:34,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:34,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:34,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:15:34,423 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:34,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:34,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1628487690, now seen corresponding path program 1 times [2020-10-22 02:15:34,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:34,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46462943] [2020-10-22 02:15:34,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:34,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:34,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46462943] [2020-10-22 02:15:34,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:34,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:15:34,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1832156155] [2020-10-22 02:15:34,566 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:34,571 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:34,577 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 38 transitions. [2020-10-22 02:15:34,577 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:34,587 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-22 02:15:34,591 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-22 02:15:34,799 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [4866#(not (= 3 ~__unbuffered_cnt~0)), 4867#(not (= ~__unbuffered_cnt~0 2)), 4868#(not (= ~__unbuffered_cnt~0 1)), 4869#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:15:34,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-22 02:15:34,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:34,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-22 02:15:34,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-22 02:15:34,801 INFO L87 Difference]: Start difference. First operand 70 states and 129 transitions. Second operand 10 states. [2020-10-22 02:15:34,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:34,865 INFO L93 Difference]: Finished difference Result 63 states and 113 transitions. [2020-10-22 02:15:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:15:34,865 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-10-22 02:15:34,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:34,866 INFO L225 Difference]: With dead ends: 63 [2020-10-22 02:15:34,867 INFO L226 Difference]: Without dead ends: 55 [2020-10-22 02:15:34,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-10-22 02:15:34,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-22 02:15:34,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-22 02:15:34,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-22 02:15:34,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-22 02:15:34,871 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 16 [2020-10-22 02:15:34,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:34,871 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-22 02:15:34,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-22 02:15:34,873 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-22 02:15:34,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:15:34,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:34,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:34,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:15:34,874 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:34,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:34,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1397206146, now seen corresponding path program 1 times [2020-10-22 02:15:34,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:34,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330099785] [2020-10-22 02:15:34,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:34,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:34,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330099785] [2020-10-22 02:15:34,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:34,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:15:34,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1458868771] [2020-10-22 02:15:34,974 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:34,976 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:34,981 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 42 transitions. [2020-10-22 02:15:34,981 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:35,071 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:35,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:15:35,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:35,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:15:35,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:15:35,072 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-22 02:15:35,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:35,101 INFO L93 Difference]: Finished difference Result 65 states and 113 transitions. [2020-10-22 02:15:35,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:15:35,101 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 02:15:35,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:35,102 INFO L225 Difference]: With dead ends: 65 [2020-10-22 02:15:35,102 INFO L226 Difference]: Without dead ends: 39 [2020-10-22 02:15:35,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:15:35,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-22 02:15:35,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-22 02:15:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-22 02:15:35,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 63 transitions. [2020-10-22 02:15:35,105 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 63 transitions. Word has length 18 [2020-10-22 02:15:35,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:35,105 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 63 transitions. [2020-10-22 02:15:35,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:15:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 63 transitions. [2020-10-22 02:15:35,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:15:35,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:35,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:35,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:15:35,106 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:35,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:35,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1171950116, now seen corresponding path program 2 times [2020-10-22 02:15:35,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:35,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465208699] [2020-10-22 02:15:35,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:35,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:35,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465208699] [2020-10-22 02:15:35,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:35,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-22 02:15:35,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2145567651] [2020-10-22 02:15:35,243 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:35,246 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:35,251 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 30 transitions. [2020-10-22 02:15:35,251 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:35,334 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [5211#(and (= ~__unbuffered_p0_EBX~0 1) (<= ~__unbuffered_cnt~0 0) (<= 0 ~__unbuffered_cnt~0))] [2020-10-22 02:15:35,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-22 02:15:35,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:35,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-22 02:15:35,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-22 02:15:35,335 INFO L87 Difference]: Start difference. First operand 39 states and 63 transitions. Second operand 11 states. [2020-10-22 02:15:35,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:35,514 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2020-10-22 02:15:35,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-22 02:15:35,515 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-10-22 02:15:35,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:35,515 INFO L225 Difference]: With dead ends: 57 [2020-10-22 02:15:35,515 INFO L226 Difference]: Without dead ends: 35 [2020-10-22 02:15:35,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-10-22 02:15:35,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-22 02:15:35,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2020-10-22 02:15:35,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-22 02:15:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 49 transitions. [2020-10-22 02:15:35,519 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 49 transitions. Word has length 18 [2020-10-22 02:15:35,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:35,519 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 49 transitions. [2020-10-22 02:15:35,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-22 02:15:35,520 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2020-10-22 02:15:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:15:35,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:15:35,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:15:35,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 02:15:35,521 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:15:35,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:15:35,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1333208262, now seen corresponding path program 3 times [2020-10-22 02:15:35,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:15:35,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108479045] [2020-10-22 02:15:35,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:15:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:15:35,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:15:35,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108479045] [2020-10-22 02:15:35,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:15:35,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:15:35,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [253002648] [2020-10-22 02:15:35,600 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:15:35,602 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:15:35,607 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 30 transitions. [2020-10-22 02:15:35,607 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:15:35,672 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:15:35,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:15:35,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:15:35,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:15:35,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:15:35,673 INFO L87 Difference]: Start difference. First operand 33 states and 49 transitions. Second operand 5 states. [2020-10-22 02:15:35,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:15:35,699 INFO L93 Difference]: Finished difference Result 32 states and 48 transitions. [2020-10-22 02:15:35,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:15:35,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 02:15:35,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:15:35,700 INFO L225 Difference]: With dead ends: 32 [2020-10-22 02:15:35,700 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:15:35,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:15:35,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:15:35,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:15:35,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:15:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:15:35,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 02:15:35,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:15:35,701 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:15:35,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:15:35,702 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:15:35,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:15:35,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 02:15:35,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:15:35 BasicIcfg [2020-10-22 02:15:35,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:15:35,713 INFO L168 Benchmark]: Toolchain (without parser) took 6536.93 ms. Allocated memory was 138.9 MB in the beginning and 292.0 MB in the end (delta: 153.1 MB). Free memory was 100.6 MB in the beginning and 123.4 MB in the end (delta: -22.8 MB). Peak memory consumption was 130.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:15:35,714 INFO L168 Benchmark]: CDTParser took 2.56 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:15:35,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.00 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.6 MB in the beginning and 155.5 MB in the end (delta: -55.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-10-22 02:15:35,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.33 ms. Allocated memory is still 201.9 MB. Free memory was 155.5 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:15:35,722 INFO L168 Benchmark]: Boogie Preprocessor took 42.35 ms. Allocated memory is still 201.9 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:15:35,723 INFO L168 Benchmark]: RCFGBuilder took 457.33 ms. Allocated memory is still 201.9 MB. Free memory was 152.1 MB in the beginning and 127.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-10-22 02:15:35,723 INFO L168 Benchmark]: TraceAbstraction took 5200.02 ms. Allocated memory was 201.9 MB in the beginning and 292.0 MB in the end (delta: 90.2 MB). Free memory was 127.2 MB in the beginning and 123.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. [2020-10-22 02:15:35,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.56 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 778.00 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.6 MB in the beginning and 155.5 MB in the end (delta: -55.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.33 ms. Allocated memory is still 201.9 MB. Free memory was 155.5 MB in the beginning and 153.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.35 ms. Allocated memory is still 201.9 MB. Free memory was 153.5 MB in the beginning and 152.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 457.33 ms. Allocated memory is still 201.9 MB. Free memory was 152.1 MB in the beginning and 127.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5200.02 ms. Allocated memory was 201.9 MB in the beginning and 292.0 MB in the end (delta: 90.2 MB). Free memory was 127.2 MB in the beginning and 123.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 762 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 43 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 MoverChecksTotal - PositiveResult [Line: 17]: 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 199 SDtfs, 251 SDslu, 389 SDs, 0 SdLazy, 270 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 6002 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...