/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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:43:03,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:43:03,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:43:03,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:43:03,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:43:03,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:43:03,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:43:03,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:43:03,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:43:03,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:43:03,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:43:03,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:43:03,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:43:03,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:43:03,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:43:03,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:43:03,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:43:03,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:43:03,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:43:03,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:43:03,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:43:03,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:43:03,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:43:03,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:43:03,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 00:43:03,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:43:03,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:43:03,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:43:03,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:43:03,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:43:03,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:43:03,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:43:03,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:43:03,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:43:03,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:43:03,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:43:03,911 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-WP.epf [2020-10-22 00:43:03,949 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:43:03,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:43:03,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:43:03,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:43:03,951 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:43:03,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:43:03,953 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:43:03,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:43:03,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:43:03,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:43:03,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:43:03,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:43:03,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:43:03,955 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:43:03,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:43:03,956 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:43:03,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:43:03,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:43:03,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:43:03,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:43:03,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:43:03,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:43:03,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:43:03,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:43:03,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:43:03,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:43:03,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:43:03,958 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:43:03,958 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:43:03,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:43:03,959 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:43:04,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:43:04,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:43:04,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:43:04,283 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:43:04,284 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:43:04,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i [2020-10-22 00:43:04,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb3a27791/cf4be67ad4a04e389922eded0fa7de09/FLAG45a619733 [2020-10-22 00:43:04,902 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:43:04,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i [2020-10-22 00:43:04,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb3a27791/cf4be67ad4a04e389922eded0fa7de09/FLAG45a619733 [2020-10-22 00:43:05,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb3a27791/cf4be67ad4a04e389922eded0fa7de09 [2020-10-22 00:43:05,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:43:05,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:43:05,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:43:05,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:43:05,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:43:05,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:05,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bf2dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05, skipping insertion in model container [2020-10-22 00:43:05,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:05,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:43:05,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:43:05,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:43:05,823 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:43:05,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:43:05,982 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:43:05,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05 WrapperNode [2020-10-22 00:43:05,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:43:05,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:43:05,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:43:05,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:43:05,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:06,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:06,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:43:06,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:43:06,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:43:06,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:43:06,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:06,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:06,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:06,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:06,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:06,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:06,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (1/1) ... [2020-10-22 00:43:06,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:43:06,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:43:06,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:43:06,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:43:06,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:43:06,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:43:06,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 00:43:06,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:43:06,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:43:06,127 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 00:43:06,128 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 00:43:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 00:43:06,128 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 00:43:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 00:43:06,128 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 00:43:06,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:43:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 00:43:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:43:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:43:06,131 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 00:43:06,506 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:43:06,506 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 00:43:06,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:43:06 BoogieIcfgContainer [2020-10-22 00:43:06,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:43:06,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:43:06,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:43:06,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:43:06,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:43:05" (1/3) ... [2020-10-22 00:43:06,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f77b7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:43:06, skipping insertion in model container [2020-10-22 00:43:06,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:43:05" (2/3) ... [2020-10-22 00:43:06,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f77b7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:43:06, skipping insertion in model container [2020-10-22 00:43:06,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:43:06" (3/3) ... [2020-10-22 00:43:06,519 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_rmo.opt.i [2020-10-22 00:43:06,531 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:43:06,531 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:43:06,539 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:43:06,540 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:43:06,572 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,573 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,573 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,573 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,575 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,576 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,576 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,576 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,577 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,578 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,578 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,578 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,582 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,583 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,583 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,583 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,591 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,592 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,595 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,595 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:43:06,598 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 00:43:06,613 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 00:43:06,644 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:43:06,644 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:43:06,645 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:43:06,647 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:43:06,647 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:43:06,647 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:43:06,648 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:43:06,648 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:43:06,678 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:43:06,678 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:43:06,680 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-22 00:43:06,682 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-22 00:43:06,732 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-22 00:43:06,732 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 00:43:06,741 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 62 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 00:43:06,744 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-22 00:43:08,421 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-22 00:43:08,704 INFO L131 LiptonReduction]: Checked pairs total: 2778 [2020-10-22 00:43:08,704 INFO L133 LiptonReduction]: Total number of compositions: 68 [2020-10-22 00:43:08,711 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-22 00:43:08,741 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-22 00:43:08,743 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-22 00:43:08,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:43:08,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:08,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:08,753 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:08,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:08,758 INFO L82 PathProgramCache]: Analyzing trace with hash -345538935, now seen corresponding path program 1 times [2020-10-22 00:43:08,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:08,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118300739] [2020-10-22 00:43:08,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:08,996 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 00:43:08,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118300739] [2020-10-22 00:43:08,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:08,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:43:08,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [530041702] [2020-10-22 00:43:09,003 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:09,021 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:09,034 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:43:09,035 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:09,039 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:09,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 00:43:09,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:09,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 00:43:09,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 00:43:09,058 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-22 00:43:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:09,090 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-22 00:43:09,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 00:43:09,093 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 00:43:09,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:09,114 INFO L225 Difference]: With dead ends: 362 [2020-10-22 00:43:09,115 INFO L226 Difference]: Without dead ends: 298 [2020-10-22 00:43:09,116 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 00:43:09,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-22 00:43:09,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-22 00:43:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-22 00:43:09,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-22 00:43:09,194 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-22 00:43:09,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:09,196 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-22 00:43:09,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 00:43:09,196 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-22 00:43:09,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 00:43:09,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:09,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:09,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:43:09,198 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:09,199 INFO L82 PathProgramCache]: Analyzing trace with hash -2121797576, now seen corresponding path program 1 times [2020-10-22 00:43:09,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:09,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946270417] [2020-10-22 00:43:09,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:09,318 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 00:43:09,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946270417] [2020-10-22 00:43:09,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:09,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:43:09,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1322405333] [2020-10-22 00:43:09,320 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:09,321 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:09,322 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 00:43:09,323 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:09,323 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:09,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:43:09,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:09,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:43:09,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:43:09,326 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-22 00:43:09,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:09,372 INFO L93 Difference]: Finished difference Result 298 states and 816 transitions. [2020-10-22 00:43:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:09,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 00:43:09,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:09,376 INFO L225 Difference]: With dead ends: 298 [2020-10-22 00:43:09,376 INFO L226 Difference]: Without dead ends: 234 [2020-10-22 00:43:09,377 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 00:43:09,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-22 00:43:09,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-10-22 00:43:09,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-22 00:43:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 640 transitions. [2020-10-22 00:43:09,401 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 640 transitions. Word has length 9 [2020-10-22 00:43:09,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:09,402 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 640 transitions. [2020-10-22 00:43:09,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:43:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 640 transitions. [2020-10-22 00:43:09,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 00:43:09,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:09,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:09,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:43:09,405 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:09,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:09,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1060758680, now seen corresponding path program 1 times [2020-10-22 00:43:09,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:09,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670060624] [2020-10-22 00:43:09,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:09,487 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 00:43:09,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670060624] [2020-10-22 00:43:09,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:09,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:43:09,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [726160673] [2020-10-22 00:43:09,489 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:09,491 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:09,494 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2020-10-22 00:43:09,494 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:09,531 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:09,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 00:43:09,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:09,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 00:43:09,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 00:43:09,533 INFO L87 Difference]: Start difference. First operand 234 states and 640 transitions. Second operand 4 states. [2020-10-22 00:43:09,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:09,580 INFO L93 Difference]: Finished difference Result 346 states and 916 transitions. [2020-10-22 00:43:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:09,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 00:43:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:09,582 INFO L225 Difference]: With dead ends: 346 [2020-10-22 00:43:09,583 INFO L226 Difference]: Without dead ends: 164 [2020-10-22 00:43:09,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 00:43:09,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-22 00:43:09,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-22 00:43:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-22 00:43:09,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 432 transitions. [2020-10-22 00:43:09,594 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 432 transitions. Word has length 11 [2020-10-22 00:43:09,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:09,595 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 432 transitions. [2020-10-22 00:43:09,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 00:43:09,595 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 432 transitions. [2020-10-22 00:43:09,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 00:43:09,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:09,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:09,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:43:09,597 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:09,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:09,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1476250237, now seen corresponding path program 1 times [2020-10-22 00:43:09,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:09,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217228480] [2020-10-22 00:43:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:09,671 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 00:43:09,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217228480] [2020-10-22 00:43:09,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:09,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 00:43:09,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [453189784] [2020-10-22 00:43:09,673 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:09,674 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:09,677 INFO L252 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-10-22 00:43:09,677 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:09,709 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:43:09,759 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 00:43:09,766 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3229#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-22 00:43:09,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:09,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:09,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:09,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:09,768 INFO L87 Difference]: Start difference. First operand 164 states and 432 transitions. Second operand 5 states. [2020-10-22 00:43:09,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:09,825 INFO L93 Difference]: Finished difference Result 139 states and 326 transitions. [2020-10-22 00:43:09,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:43:09,826 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-22 00:43:09,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:09,827 INFO L225 Difference]: With dead ends: 139 [2020-10-22 00:43:09,827 INFO L226 Difference]: Without dead ends: 87 [2020-10-22 00:43:09,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 00:43:09,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-22 00:43:09,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-22 00:43:09,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-22 00:43:09,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 172 transitions. [2020-10-22 00:43:09,833 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 172 transitions. Word has length 12 [2020-10-22 00:43:09,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:09,833 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 172 transitions. [2020-10-22 00:43:09,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:09,834 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 172 transitions. [2020-10-22 00:43:09,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 00:43:09,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:09,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:43:09,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 00:43:09,835 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:09,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:09,836 INFO L82 PathProgramCache]: Analyzing trace with hash 809328863, now seen corresponding path program 1 times [2020-10-22 00:43:09,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:09,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436014884] [2020-10-22 00:43:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:09,955 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 00:43:09,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436014884] [2020-10-22 00:43:09,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:09,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 00:43:09,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [9264139] [2020-10-22 00:43:09,958 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:09,960 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:09,966 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 37 transitions. [2020-10-22 00:43:09,966 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:10,001 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3553#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 00:43:10,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 00:43:10,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:10,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 00:43:10,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:43:10,003 INFO L87 Difference]: Start difference. First operand 87 states and 172 transitions. Second operand 7 states. [2020-10-22 00:43:10,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:10,053 INFO L93 Difference]: Finished difference Result 76 states and 148 transitions. [2020-10-22 00:43:10,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 00:43:10,054 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-22 00:43:10,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:10,055 INFO L225 Difference]: With dead ends: 76 [2020-10-22 00:43:10,055 INFO L226 Difference]: Without dead ends: 67 [2020-10-22 00:43:10,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-22 00:43:10,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-22 00:43:10,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-10-22 00:43:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-22 00:43:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 132 transitions. [2020-10-22 00:43:10,059 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 132 transitions. Word has length 15 [2020-10-22 00:43:10,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:10,060 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 132 transitions. [2020-10-22 00:43:10,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 00:43:10,060 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 132 transitions. [2020-10-22 00:43:10,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:43:10,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:10,061 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 00:43:10,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:43:10,062 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:10,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:10,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1097223765, now seen corresponding path program 1 times [2020-10-22 00:43:10,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:10,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688534585] [2020-10-22 00:43:10,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:10,125 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 00:43:10,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688534585] [2020-10-22 00:43:10,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:10,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:43:10,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1614285843] [2020-10-22 00:43:10,126 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:10,128 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:10,135 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 68 transitions. [2020-10-22 00:43:10,135 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:10,280 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:10,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:10,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:10,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:10,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:10,281 INFO L87 Difference]: Start difference. First operand 67 states and 132 transitions. Second operand 5 states. [2020-10-22 00:43:10,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:10,312 INFO L93 Difference]: Finished difference Result 87 states and 167 transitions. [2020-10-22 00:43:10,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:10,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 00:43:10,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:10,313 INFO L225 Difference]: With dead ends: 87 [2020-10-22 00:43:10,313 INFO L226 Difference]: Without dead ends: 40 [2020-10-22 00:43:10,314 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 00:43:10,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-22 00:43:10,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-22 00:43:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-22 00:43:10,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-22 00:43:10,316 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 18 [2020-10-22 00:43:10,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:10,317 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-22 00:43:10,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:10,317 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-22 00:43:10,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 00:43:10,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:43:10,318 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 00:43:10,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:43:10,318 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:43:10,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:43:10,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1731427213, now seen corresponding path program 2 times [2020-10-22 00:43:10,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:43:10,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822042086] [2020-10-22 00:43:10,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:43:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:43:10,391 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 00:43:10,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822042086] [2020-10-22 00:43:10,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:43:10,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 00:43:10,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [716093289] [2020-10-22 00:43:10,393 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:43:10,398 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:43:10,405 INFO L252 McrAutomatonBuilder]: Finished intersection with 41 states and 58 transitions. [2020-10-22 00:43:10,406 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:43:10,473 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:43:10,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 00:43:10,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:43:10,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 00:43:10,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:43:10,475 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-22 00:43:10,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:43:10,507 INFO L93 Difference]: Finished difference Result 39 states and 65 transitions. [2020-10-22 00:43:10,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 00:43:10,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-22 00:43:10,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:43:10,508 INFO L225 Difference]: With dead ends: 39 [2020-10-22 00:43:10,508 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 00:43:10,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 00:43:10,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 00:43:10,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 00:43:10,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 00:43:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 00:43:10,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-22 00:43:10,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:43:10,510 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 00:43:10,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 00:43:10,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 00:43:10,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 00:43:10,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 00:43:10,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:43:10 BasicIcfg [2020-10-22 00:43:10,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:43:10,516 INFO L168 Benchmark]: Toolchain (without parser) took 5301.44 ms. Allocated memory was 141.0 MB in the beginning and 281.0 MB in the end (delta: 140.0 MB). Free memory was 103.0 MB in the beginning and 208.9 MB in the end (delta: -105.9 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:10,517 INFO L168 Benchmark]: CDTParser took 3.12 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 00:43:10,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.58 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 158.8 MB in the end (delta: -56.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:10,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.56 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:10,520 INFO L168 Benchmark]: Boogie Preprocessor took 25.33 ms. Allocated memory is still 204.5 MB. Free memory was 156.1 MB in the beginning and 154.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:10,520 INFO L168 Benchmark]: RCFGBuilder took 452.20 ms. Allocated memory is still 204.5 MB. Free memory was 154.7 MB in the beginning and 130.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-22 00:43:10,521 INFO L168 Benchmark]: TraceAbstraction took 4004.05 ms. Allocated memory was 204.5 MB in the beginning and 281.0 MB in the end (delta: 76.5 MB). Free memory was 129.7 MB in the beginning and 208.9 MB in the end (delta: -79.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 00:43:10,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.12 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 761.58 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 158.8 MB in the end (delta: -56.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.56 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 156.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.33 ms. Allocated memory is still 204.5 MB. Free memory was 156.1 MB in the beginning and 154.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.20 ms. Allocated memory is still 204.5 MB. Free memory was 154.7 MB in the beginning and 130.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4004.05 ms. Allocated memory was 204.5 MB in the beginning and 281.0 MB in the end (delta: 76.5 MB). Free memory was 129.7 MB in the beginning and 208.9 MB in the end (delta: -79.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 777 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 52 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.0s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 2778 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: 3.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 158 SDtfs, 124 SDslu, 249 SDs, 0 SdLazy, 103 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 3104 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...