/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:20:33,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:20:33,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:20:34,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:20:34,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:20:34,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:20:34,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:20:34,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:20:34,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:20:34,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:20:34,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:20:34,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:20:34,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:20:34,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:20:34,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:20:34,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:20:34,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:20:34,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:20:34,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:20:34,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:20:34,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:20:34,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:20:34,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:20:34,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:20:34,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 00:20:34,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 00:20:34,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 00:20:34,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 00:20:34,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 00:20:34,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 00:20:34,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:20:34,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:20:34,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:20:34,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:20:34,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:20:34,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:20:34,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:20:34,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:20:34,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:20:34,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:20:34,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:20:34,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-27 00:20:34,066 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:20:34,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:20:34,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:20:34,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:20:34,069 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:20:34,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:20:34,070 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:20:34,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:20:34,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:20:34,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:20:34,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:20:34,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:20:34,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:20:34,071 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:20:34,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:20:34,071 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:20:34,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:20:34,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:20:34,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:20:34,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:20:34,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:20:34,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:20:34,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:20:34,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:20:34,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:20:34,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:20:34,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:20:34,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:20:34,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-27 00:20:34,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:20:34,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:20:34,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:20:34,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:20:34,372 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:20:34,372 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:20:34,373 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2014.i [2019-12-27 00:20:34,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c998722/02e5e27b70be47eaacb96eba0b8ceffc/FLAG4b26d3365 [2019-12-27 00:20:34,977 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:20:34,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i [2019-12-27 00:20:35,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c998722/02e5e27b70be47eaacb96eba0b8ceffc/FLAG4b26d3365 [2019-12-27 00:20:35,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c998722/02e5e27b70be47eaacb96eba0b8ceffc [2019-12-27 00:20:35,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:20:35,290 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:20:35,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:20:35,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:20:35,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:20:35,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:35,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59db28df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35, skipping insertion in model container [2019-12-27 00:20:35,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:35,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:20:35,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:20:35,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:20:35,866 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:20:35,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:20:35,994 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:20:35,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35 WrapperNode [2019-12-27 00:20:35,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:20:35,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:20:35,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:20:35,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:20:36,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:36,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:36,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:20:36,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:20:36,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:20:36,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:20:36,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:36,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:36,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:36,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:36,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:36,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:36,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (1/1) ... [2019-12-27 00:20:36,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:20:36,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:20:36,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:20:36,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:20:36,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:20:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:20:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 00:20:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-12-27 00:20:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-12-27 00:20:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:20:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:20:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 00:20:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:20:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:20:36,148 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 00:20:36,473 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:20:36,474 INFO L287 CfgBuilder]: Removed 11 assume(true) statements. [2019-12-27 00:20:36,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:20:36 BoogieIcfgContainer [2019-12-27 00:20:36,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:20:36,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:20:36,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:20:36,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:20:36,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:20:35" (1/3) ... [2019-12-27 00:20:36,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d82f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:20:36, skipping insertion in model container [2019-12-27 00:20:36,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:20:35" (2/3) ... [2019-12-27 00:20:36,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d82f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:20:36, skipping insertion in model container [2019-12-27 00:20:36,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:20:36" (3/3) ... [2019-12-27 00:20:36,483 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2019-12-27 00:20:36,493 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:20:36,494 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:20:36,501 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:20:36,502 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:20:36,526 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,526 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,527 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,527 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,528 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,528 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,528 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,529 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,529 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,529 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,529 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,530 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,530 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,530 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,534 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,534 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,535 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,535 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,535 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,535 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,536 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,536 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:36,553 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 00:20:36,569 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:20:36,569 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:20:36,569 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:20:36,569 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:20:36,570 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:20:36,570 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:20:36,570 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:20:36,570 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:20:36,583 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 43 transitions [2019-12-27 00:20:36,585 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 44 places, 43 transitions [2019-12-27 00:20:36,626 INFO L132 PetriNetUnfolder]: 3/52 cut-off events. [2019-12-27 00:20:36,626 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:20:36,638 INFO L76 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 52 events. 3/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs. 0/46 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2019-12-27 00:20:36,640 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 44 places, 43 transitions [2019-12-27 00:20:36,662 INFO L132 PetriNetUnfolder]: 3/52 cut-off events. [2019-12-27 00:20:36,662 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 00:20:36,663 INFO L76 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 52 events. 3/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs. 0/46 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2019-12-27 00:20:36,665 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 336 [2019-12-27 00:20:36,666 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:20:37,776 INFO L206 etLargeBlockEncoding]: Checked pairs total: 243 [2019-12-27 00:20:37,777 INFO L214 etLargeBlockEncoding]: Total number of compositions: 40 [2019-12-27 00:20:37,780 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 9 places, 8 transitions [2019-12-27 00:20:37,788 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2019-12-27 00:20:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-27 00:20:37,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 00:20:37,797 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:37,798 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 00:20:37,798 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:37,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:37,803 INFO L82 PathProgramCache]: Analyzing trace with hash 5761098, now seen corresponding path program 1 times [2019-12-27 00:20:37,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:37,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844564482] [2019-12-27 00:20:37,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:20:38,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844564482] [2019-12-27 00:20:38,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:38,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 00:20:38,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448857972] [2019-12-27 00:20:38,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:20:38,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:38,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:20:38,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:20:38,056 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-12-27 00:20:38,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:20:38,082 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2019-12-27 00:20:38,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:20:38,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-27 00:20:38,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:20:38,104 INFO L225 Difference]: With dead ends: 14 [2019-12-27 00:20:38,105 INFO L226 Difference]: Without dead ends: 11 [2019-12-27 00:20:38,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:20:38,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-12-27 00:20:38,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-27 00:20:38,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-27 00:20:38,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-12-27 00:20:38,150 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2019-12-27 00:20:38,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:20:38,150 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-27 00:20:38,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:20:38,151 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-27 00:20:38,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-27 00:20:38,151 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:38,151 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-12-27 00:20:38,152 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:38,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:38,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1241448245, now seen corresponding path program 1 times [2019-12-27 00:20:38,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:38,153 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022927979] [2019-12-27 00:20:38,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:20:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:20:38,240 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:20:38,240 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:20:38,242 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:20:38,242 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-27 00:20:38,250 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,250 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,251 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,251 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,251 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,251 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,252 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,252 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,252 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,252 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,253 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,253 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,253 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,254 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,254 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,254 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,255 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,255 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,255 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,255 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,255 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,256 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,256 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,256 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,256 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,257 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,257 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,257 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,258 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,258 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,258 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,259 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,259 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,259 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,259 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,259 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,261 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,262 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,262 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,262 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,262 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,262 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,263 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,263 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:38,265 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 00:20:38,265 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:20:38,265 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:20:38,265 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:20:38,266 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:20:38,266 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:20:38,266 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:20:38,266 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:20:38,266 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:20:38,269 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions [2019-12-27 00:20:38,269 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions [2019-12-27 00:20:38,292 INFO L132 PetriNetUnfolder]: 5/78 cut-off events. [2019-12-27 00:20:38,293 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 00:20:38,294 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 78 events. 5/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs. 0/68 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2019-12-27 00:20:38,298 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions [2019-12-27 00:20:38,317 INFO L132 PetriNetUnfolder]: 5/78 cut-off events. [2019-12-27 00:20:38,318 INFO L133 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2019-12-27 00:20:38,320 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 78 events. 5/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs. 0/68 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2019-12-27 00:20:38,323 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 984 [2019-12-27 00:20:38,324 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:20:39,278 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1323 [2019-12-27 00:20:39,279 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 00:20:39,279 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 16 transitions [2019-12-27 00:20:39,287 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 179 states. [2019-12-27 00:20:39,288 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-12-27 00:20:39,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 00:20:39,288 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:39,289 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 00:20:39,289 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:39,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:39,289 INFO L82 PathProgramCache]: Analyzing trace with hash 291015221, now seen corresponding path program 1 times [2019-12-27 00:20:39,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:39,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288518597] [2019-12-27 00:20:39,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:20:39,364 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288518597] [2019-12-27 00:20:39,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:39,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:20:39,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919163576] [2019-12-27 00:20:39,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:20:39,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:39,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:20:39,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:20:39,366 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 4 states. [2019-12-27 00:20:39,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:20:39,426 INFO L93 Difference]: Finished difference Result 132 states and 285 transitions. [2019-12-27 00:20:39,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:20:39,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-27 00:20:39,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:20:39,430 INFO L225 Difference]: With dead ends: 132 [2019-12-27 00:20:39,430 INFO L226 Difference]: Without dead ends: 123 [2019-12-27 00:20:39,431 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:20:39,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-12-27 00:20:39,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-12-27 00:20:39,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-12-27 00:20:39,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 265 transitions. [2019-12-27 00:20:39,449 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 265 transitions. Word has length 5 [2019-12-27 00:20:39,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:20:39,449 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 265 transitions. [2019-12-27 00:20:39,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:20:39,450 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 265 transitions. [2019-12-27 00:20:39,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:20:39,451 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:39,461 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2019-12-27 00:20:39,462 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:39,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:39,462 INFO L82 PathProgramCache]: Analyzing trace with hash -2015404397, now seen corresponding path program 1 times [2019-12-27 00:20:39,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:39,463 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869962965] [2019-12-27 00:20:39,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:20:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:20:39,498 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:20:39,498 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:20:39,498 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:20:39,498 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-27 00:20:39,506 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,506 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,506 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,506 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,506 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,507 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,507 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,507 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,507 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,507 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,507 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,508 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,508 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,508 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,509 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,509 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,509 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,509 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,509 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,509 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,510 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,510 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,510 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,510 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,510 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,511 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,511 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,511 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,511 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,512 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,512 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,512 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,512 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,512 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,512 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,513 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,513 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,513 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,513 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,513 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,514 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,514 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,514 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,515 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,515 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,515 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,516 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,518 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,518 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,519 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,519 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,521 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,521 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,521 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,521 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,522 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,522 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,522 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,522 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:39,524 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 00:20:39,524 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:20:39,524 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:20:39,524 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:20:39,524 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:20:39,524 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:20:39,525 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:20:39,525 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:20:39,525 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:20:39,527 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 69 transitions [2019-12-27 00:20:39,527 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions [2019-12-27 00:20:39,546 INFO L132 PetriNetUnfolder]: 7/104 cut-off events. [2019-12-27 00:20:39,547 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 00:20:39,549 INFO L76 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 104 events. 7/104 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 181 event pairs. 0/90 useless extension candidates. Maximal degree in co-relation 82. Up to 8 conditions per place. [2019-12-27 00:20:39,554 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions [2019-12-27 00:20:39,570 INFO L132 PetriNetUnfolder]: 7/104 cut-off events. [2019-12-27 00:20:39,571 INFO L133 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2019-12-27 00:20:39,573 INFO L76 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 104 events. 7/104 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 181 event pairs. 0/90 useless extension candidates. Maximal degree in co-relation 82. Up to 8 conditions per place. [2019-12-27 00:20:39,576 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1944 [2019-12-27 00:20:39,577 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:20:40,846 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3045 [2019-12-27 00:20:40,846 INFO L214 etLargeBlockEncoding]: Total number of compositions: 60 [2019-12-27 00:20:40,846 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 21 transitions [2019-12-27 00:20:40,888 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 904 states. [2019-12-27 00:20:40,888 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states. [2019-12-27 00:20:40,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 00:20:40,889 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:40,889 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 00:20:40,889 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:40,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:40,890 INFO L82 PathProgramCache]: Analyzing trace with hash 430208582, now seen corresponding path program 1 times [2019-12-27 00:20:40,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:40,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344628388] [2019-12-27 00:20:40,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:40,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:20:40,925 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344628388] [2019-12-27 00:20:40,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:40,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:20:40,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661908420] [2019-12-27 00:20:40,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:20:40,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:40,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:20:40,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:20:40,927 INFO L87 Difference]: Start difference. First operand 904 states. Second operand 4 states. [2019-12-27 00:20:41,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:20:41,082 INFO L93 Difference]: Finished difference Result 997 states and 2621 transitions. [2019-12-27 00:20:41,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:20:41,082 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-27 00:20:41,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:20:41,098 INFO L225 Difference]: With dead ends: 997 [2019-12-27 00:20:41,101 INFO L226 Difference]: Without dead ends: 957 [2019-12-27 00:20:41,101 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:20:41,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2019-12-27 00:20:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 823. [2019-12-27 00:20:41,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2019-12-27 00:20:41,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 2262 transitions. [2019-12-27 00:20:41,207 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 2262 transitions. Word has length 5 [2019-12-27 00:20:41,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:20:41,207 INFO L462 AbstractCegarLoop]: Abstraction has 823 states and 2262 transitions. [2019-12-27 00:20:41,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:20:41,207 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 2262 transitions. [2019-12-27 00:20:41,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:20:41,209 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:41,209 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:20:41,209 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:41,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:41,209 INFO L82 PathProgramCache]: Analyzing trace with hash -432656821, now seen corresponding path program 1 times [2019-12-27 00:20:41,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:41,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237720783] [2019-12-27 00:20:41,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:20:41,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237720783] [2019-12-27 00:20:41,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:41,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:20:41,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760330581] [2019-12-27 00:20:41,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:20:41,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:41,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:20:41,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:20:41,302 INFO L87 Difference]: Start difference. First operand 823 states and 2262 transitions. Second operand 5 states. [2019-12-27 00:20:41,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:20:41,403 INFO L93 Difference]: Finished difference Result 706 states and 1924 transitions. [2019-12-27 00:20:41,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:20:41,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-27 00:20:41,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:20:41,412 INFO L225 Difference]: With dead ends: 706 [2019-12-27 00:20:41,413 INFO L226 Difference]: Without dead ends: 664 [2019-12-27 00:20:41,414 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:20:41,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2019-12-27 00:20:41,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 519. [2019-12-27 00:20:41,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2019-12-27 00:20:41,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 1463 transitions. [2019-12-27 00:20:41,437 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 1463 transitions. Word has length 12 [2019-12-27 00:20:41,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:20:41,438 INFO L462 AbstractCegarLoop]: Abstraction has 519 states and 1463 transitions. [2019-12-27 00:20:41,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:20:41,438 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 1463 transitions. [2019-12-27 00:20:41,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-27 00:20:41,444 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:41,444 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2019-12-27 00:20:41,444 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:41,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:41,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1528779804, now seen corresponding path program 1 times [2019-12-27 00:20:41,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:41,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258718502] [2019-12-27 00:20:41,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:20:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:20:41,503 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:20:41,504 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:20:41,504 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:20:41,504 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-27 00:20:41,512 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,512 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,512 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,512 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,513 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,513 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,513 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,513 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,513 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,514 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,514 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,514 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,514 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,515 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,515 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,515 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,516 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,516 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,516 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,516 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,516 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,517 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,517 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,517 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,517 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,517 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,518 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,518 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,518 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,518 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,518 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,519 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,519 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,519 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,519 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,520 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,520 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,520 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,520 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,520 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,521 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,521 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,521 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,521 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,521 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,521 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,522 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,522 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,522 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,522 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,522 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,523 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,523 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,523 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,524 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,524 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,524 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,524 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,524 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,524 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,525 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,526 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,527 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,527 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,527 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,527 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,527 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,527 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,527 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,529 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,529 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,529 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,529 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,529 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,530 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,530 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,530 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,531 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,532 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,532 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,532 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,532 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,532 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,532 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,533 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:41,534 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 00:20:41,534 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:20:41,534 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:20:41,534 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:20:41,535 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:20:41,535 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:20:41,535 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:20:41,535 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:20:41,535 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:20:41,536 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 82 transitions [2019-12-27 00:20:41,537 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions [2019-12-27 00:20:41,558 INFO L132 PetriNetUnfolder]: 9/130 cut-off events. [2019-12-27 00:20:41,558 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 00:20:41,561 INFO L76 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 130 events. 9/130 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 241 event pairs. 0/112 useless extension candidates. Maximal degree in co-relation 112. Up to 10 conditions per place. [2019-12-27 00:20:41,568 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions [2019-12-27 00:20:41,600 INFO L132 PetriNetUnfolder]: 9/130 cut-off events. [2019-12-27 00:20:41,601 INFO L133 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2019-12-27 00:20:41,603 INFO L76 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 130 events. 9/130 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 241 event pairs. 0/112 useless extension candidates. Maximal degree in co-relation 112. Up to 10 conditions per place. [2019-12-27 00:20:41,609 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3216 [2019-12-27 00:20:41,609 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:20:43,047 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5527 [2019-12-27 00:20:43,048 INFO L214 etLargeBlockEncoding]: Total number of compositions: 71 [2019-12-27 00:20:43,048 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 32 transitions [2019-12-27 00:20:43,605 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7564 states. [2019-12-27 00:20:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7564 states. [2019-12-27 00:20:43,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 00:20:43,606 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:43,606 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 00:20:43,607 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:43,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:43,607 INFO L82 PathProgramCache]: Analyzing trace with hash 588674300, now seen corresponding path program 1 times [2019-12-27 00:20:43,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:43,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440117435] [2019-12-27 00:20:43,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:20:43,636 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440117435] [2019-12-27 00:20:43,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:43,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:20:43,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571683173] [2019-12-27 00:20:43,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:20:43,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:43,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:20:43,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:20:43,638 INFO L87 Difference]: Start difference. First operand 7564 states. Second operand 4 states. [2019-12-27 00:20:43,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:20:43,962 INFO L93 Difference]: Finished difference Result 13033 states and 47597 transitions. [2019-12-27 00:20:43,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:20:43,962 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-27 00:20:43,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:20:44,098 INFO L225 Difference]: With dead ends: 13033 [2019-12-27 00:20:44,098 INFO L226 Difference]: Without dead ends: 12766 [2019-12-27 00:20:44,098 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:20:44,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12766 states. [2019-12-27 00:20:44,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12766 to 10529. [2019-12-27 00:20:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10529 states. [2019-12-27 00:20:44,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10529 states to 10529 states and 39452 transitions. [2019-12-27 00:20:44,676 INFO L78 Accepts]: Start accepts. Automaton has 10529 states and 39452 transitions. Word has length 5 [2019-12-27 00:20:44,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:20:44,677 INFO L462 AbstractCegarLoop]: Abstraction has 10529 states and 39452 transitions. [2019-12-27 00:20:44,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:20:44,677 INFO L276 IsEmpty]: Start isEmpty. Operand 10529 states and 39452 transitions. [2019-12-27 00:20:44,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:20:44,678 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:44,678 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:20:44,678 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:44,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:44,679 INFO L82 PathProgramCache]: Analyzing trace with hash -103934083, now seen corresponding path program 1 times [2019-12-27 00:20:44,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:44,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896672943] [2019-12-27 00:20:44,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:44,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:20:44,758 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896672943] [2019-12-27 00:20:44,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:44,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:20:44,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666749657] [2019-12-27 00:20:44,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:20:44,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:44,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:20:44,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:20:44,761 INFO L87 Difference]: Start difference. First operand 10529 states and 39452 transitions. Second operand 5 states. [2019-12-27 00:20:44,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:20:44,987 INFO L93 Difference]: Finished difference Result 11190 states and 40701 transitions. [2019-12-27 00:20:44,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:20:44,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-27 00:20:44,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:20:45,038 INFO L225 Difference]: With dead ends: 11190 [2019-12-27 00:20:45,038 INFO L226 Difference]: Without dead ends: 10822 [2019-12-27 00:20:45,039 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:20:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2019-12-27 00:20:45,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 6667. [2019-12-27 00:20:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6667 states. [2019-12-27 00:20:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6667 states to 6667 states and 24831 transitions. [2019-12-27 00:20:46,110 INFO L78 Accepts]: Start accepts. Automaton has 6667 states and 24831 transitions. Word has length 12 [2019-12-27 00:20:46,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:20:46,111 INFO L462 AbstractCegarLoop]: Abstraction has 6667 states and 24831 transitions. [2019-12-27 00:20:46,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:20:46,111 INFO L276 IsEmpty]: Start isEmpty. Operand 6667 states and 24831 transitions. [2019-12-27 00:20:46,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:20:46,114 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:46,114 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:20:46,114 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:46,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:46,115 INFO L82 PathProgramCache]: Analyzing trace with hash 58312916, now seen corresponding path program 1 times [2019-12-27 00:20:46,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:46,115 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215071028] [2019-12-27 00:20:46,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:46,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:20:46,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215071028] [2019-12-27 00:20:46,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:46,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:20:46,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339236960] [2019-12-27 00:20:46,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 00:20:46,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:46,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 00:20:46,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:20:46,196 INFO L87 Difference]: Start difference. First operand 6667 states and 24831 transitions. Second operand 6 states. [2019-12-27 00:20:46,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:20:46,368 INFO L93 Difference]: Finished difference Result 6144 states and 22926 transitions. [2019-12-27 00:20:46,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:20:46,369 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-12-27 00:20:46,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:20:46,392 INFO L225 Difference]: With dead ends: 6144 [2019-12-27 00:20:46,392 INFO L226 Difference]: Without dead ends: 5712 [2019-12-27 00:20:46,393 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:20:46,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5712 states. [2019-12-27 00:20:46,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5712 to 3941. [2019-12-27 00:20:46,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3941 states. [2019-12-27 00:20:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 14870 transitions. [2019-12-27 00:20:46,527 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 14870 transitions. Word has length 19 [2019-12-27 00:20:46,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:20:46,529 INFO L462 AbstractCegarLoop]: Abstraction has 3941 states and 14870 transitions. [2019-12-27 00:20:46,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 00:20:46,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 14870 transitions. [2019-12-27 00:20:46,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:20:46,532 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:46,532 INFO L411 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2019-12-27 00:20:46,532 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:46,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:46,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1675149140, now seen corresponding path program 1 times [2019-12-27 00:20:46,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:46,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112358580] [2019-12-27 00:20:46,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:20:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:20:46,587 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:20:46,587 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:20:46,587 WARN L364 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:20:46,587 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2019-12-27 00:20:46,597 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,597 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,597 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,597 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,598 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,598 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,598 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,598 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,598 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,598 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,598 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,599 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,599 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,599 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,599 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,599 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,599 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,600 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,600 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,600 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,600 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,600 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,600 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,600 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,601 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,601 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,601 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,601 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,601 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,601 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,602 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,602 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,602 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,602 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,602 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,602 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,602 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,603 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,603 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,603 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,603 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,603 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,604 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,604 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,604 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,604 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,604 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,604 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,605 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,605 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,605 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,605 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,605 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,605 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,606 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,606 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,606 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,606 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,606 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,606 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,606 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,607 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,607 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,607 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,607 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,607 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,607 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,608 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,608 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,608 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,608 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,609 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,609 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,609 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,609 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,609 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,609 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,609 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,611 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,611 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,611 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,611 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,612 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,612 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,612 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,612 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,614 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,614 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,614 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,615 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,615 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,615 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,615 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,615 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,617 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,617 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,617 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,617 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,618 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,618 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,618 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,618 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,620 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,620 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,620 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,621 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,621 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,621 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,621 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,621 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:20:46,623 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 00:20:46,623 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:20:46,623 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:20:46,624 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:20:46,624 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:20:46,624 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:20:46,624 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:20:46,624 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:20:46,624 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:20:46,625 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 95 transitions [2019-12-27 00:20:46,626 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions [2019-12-27 00:20:46,647 INFO L132 PetriNetUnfolder]: 11/156 cut-off events. [2019-12-27 00:20:46,647 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 00:20:46,651 INFO L76 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 156 events. 11/156 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 318 event pairs. 0/134 useless extension candidates. Maximal degree in co-relation 143. Up to 12 conditions per place. [2019-12-27 00:20:46,660 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions [2019-12-27 00:20:46,680 INFO L132 PetriNetUnfolder]: 11/156 cut-off events. [2019-12-27 00:20:46,680 INFO L133 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2019-12-27 00:20:46,683 INFO L76 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 156 events. 11/156 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 318 event pairs. 0/134 useless extension candidates. Maximal degree in co-relation 143. Up to 12 conditions per place. [2019-12-27 00:20:46,692 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4800 [2019-12-27 00:20:46,692 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:20:48,350 INFO L206 etLargeBlockEncoding]: Checked pairs total: 7263 [2019-12-27 00:20:48,350 INFO L214 etLargeBlockEncoding]: Total number of compositions: 79 [2019-12-27 00:20:48,350 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 33 transitions [2019-12-27 00:20:50,681 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26404 states. [2019-12-27 00:20:50,682 INFO L276 IsEmpty]: Start isEmpty. Operand 26404 states. [2019-12-27 00:20:50,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 00:20:50,682 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:50,682 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 00:20:50,682 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:50,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:50,683 INFO L82 PathProgramCache]: Analyzing trace with hash 773438836, now seen corresponding path program 1 times [2019-12-27 00:20:50,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:50,683 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731600591] [2019-12-27 00:20:50,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:20:50,722 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731600591] [2019-12-27 00:20:50,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:50,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:20:50,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125695447] [2019-12-27 00:20:50,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:20:50,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:50,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:20:50,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:20:50,724 INFO L87 Difference]: Start difference. First operand 26404 states. Second operand 4 states. [2019-12-27 00:20:50,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:20:50,922 INFO L93 Difference]: Finished difference Result 20618 states and 92559 transitions. [2019-12-27 00:20:50,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:20:50,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-27 00:20:50,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:20:51,039 INFO L225 Difference]: With dead ends: 20618 [2019-12-27 00:20:51,039 INFO L226 Difference]: Without dead ends: 20537 [2019-12-27 00:20:51,040 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:20:51,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20537 states. [2019-12-27 00:20:51,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20537 to 20123. [2019-12-27 00:20:51,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20123 states. [2019-12-27 00:20:52,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20123 states to 20123 states and 91125 transitions. [2019-12-27 00:20:52,021 INFO L78 Accepts]: Start accepts. Automaton has 20123 states and 91125 transitions. Word has length 5 [2019-12-27 00:20:52,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:20:52,022 INFO L462 AbstractCegarLoop]: Abstraction has 20123 states and 91125 transitions. [2019-12-27 00:20:52,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:20:52,022 INFO L276 IsEmpty]: Start isEmpty. Operand 20123 states and 91125 transitions. [2019-12-27 00:20:52,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:20:52,023 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:52,023 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:20:52,024 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:52,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:52,024 INFO L82 PathProgramCache]: Analyzing trace with hash -217213298, now seen corresponding path program 1 times [2019-12-27 00:20:52,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:52,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117283914] [2019-12-27 00:20:52,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:52,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:20:52,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117283914] [2019-12-27 00:20:52,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:52,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:20:52,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473138677] [2019-12-27 00:20:52,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:20:52,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:52,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:20:52,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:20:52,073 INFO L87 Difference]: Start difference. First operand 20123 states and 91125 transitions. Second operand 5 states. [2019-12-27 00:20:53,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:20:53,773 INFO L93 Difference]: Finished difference Result 50196 states and 204936 transitions. [2019-12-27 00:20:53,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:20:53,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-27 00:20:53,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:20:54,029 INFO L225 Difference]: With dead ends: 50196 [2019-12-27 00:20:54,029 INFO L226 Difference]: Without dead ends: 50178 [2019-12-27 00:20:54,030 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:20:54,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50178 states. [2019-12-27 00:20:55,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50178 to 40643. [2019-12-27 00:20:55,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40643 states. [2019-12-27 00:20:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40643 states to 40643 states and 171057 transitions. [2019-12-27 00:20:55,636 INFO L78 Accepts]: Start accepts. Automaton has 40643 states and 171057 transitions. Word has length 12 [2019-12-27 00:20:55,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:20:55,637 INFO L462 AbstractCegarLoop]: Abstraction has 40643 states and 171057 transitions. [2019-12-27 00:20:55,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:20:55,637 INFO L276 IsEmpty]: Start isEmpty. Operand 40643 states and 171057 transitions. [2019-12-27 00:20:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:20:55,637 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:55,637 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:20:55,638 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:55,638 INFO L82 PathProgramCache]: Analyzing trace with hash -217284908, now seen corresponding path program 2 times [2019-12-27 00:20:55,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:55,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536842719] [2019-12-27 00:20:55,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:20:55,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536842719] [2019-12-27 00:20:55,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:55,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:20:55,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216787784] [2019-12-27 00:20:55,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:20:55,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:55,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:20:55,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:20:55,684 INFO L87 Difference]: Start difference. First operand 40643 states and 171057 transitions. Second operand 5 states. [2019-12-27 00:20:56,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:20:56,132 INFO L93 Difference]: Finished difference Result 66364 states and 266241 transitions. [2019-12-27 00:20:56,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:20:56,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-27 00:20:56,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:20:56,341 INFO L225 Difference]: With dead ends: 66364 [2019-12-27 00:20:56,341 INFO L226 Difference]: Without dead ends: 66343 [2019-12-27 00:20:56,341 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:20:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66343 states. [2019-12-27 00:20:59,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66343 to 49057. [2019-12-27 00:20:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49057 states. [2019-12-27 00:20:59,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49057 states to 49057 states and 209063 transitions. [2019-12-27 00:20:59,798 INFO L78 Accepts]: Start accepts. Automaton has 49057 states and 209063 transitions. Word has length 12 [2019-12-27 00:20:59,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:20:59,799 INFO L462 AbstractCegarLoop]: Abstraction has 49057 states and 209063 transitions. [2019-12-27 00:20:59,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:20:59,799 INFO L276 IsEmpty]: Start isEmpty. Operand 49057 states and 209063 transitions. [2019-12-27 00:20:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:20:59,799 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:20:59,799 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:20:59,799 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:20:59,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:20:59,800 INFO L82 PathProgramCache]: Analyzing trace with hash -218063318, now seen corresponding path program 3 times [2019-12-27 00:20:59,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:20:59,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876766611] [2019-12-27 00:20:59,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:20:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:20:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:20:59,852 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876766611] [2019-12-27 00:20:59,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:20:59,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:20:59,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025919354] [2019-12-27 00:20:59,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 00:20:59,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:20:59,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 00:20:59,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:20:59,854 INFO L87 Difference]: Start difference. First operand 49057 states and 209063 transitions. Second operand 6 states. [2019-12-27 00:21:00,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:21:00,137 INFO L93 Difference]: Finished difference Result 37464 states and 160101 transitions. [2019-12-27 00:21:00,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:21:00,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-12-27 00:21:00,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:21:00,234 INFO L225 Difference]: With dead ends: 37464 [2019-12-27 00:21:00,234 INFO L226 Difference]: Without dead ends: 37455 [2019-12-27 00:21:00,234 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:21:00,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37455 states. [2019-12-27 00:21:01,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37455 to 32130. [2019-12-27 00:21:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32130 states. [2019-12-27 00:21:01,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32130 states to 32130 states and 134661 transitions. [2019-12-27 00:21:01,353 INFO L78 Accepts]: Start accepts. Automaton has 32130 states and 134661 transitions. Word has length 12 [2019-12-27 00:21:01,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:21:01,353 INFO L462 AbstractCegarLoop]: Abstraction has 32130 states and 134661 transitions. [2019-12-27 00:21:01,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 00:21:01,353 INFO L276 IsEmpty]: Start isEmpty. Operand 32130 states and 134661 transitions. [2019-12-27 00:21:01,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:21:01,355 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:21:01,355 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:21:01,355 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:21:01,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:21:01,356 INFO L82 PathProgramCache]: Analyzing trace with hash -515441892, now seen corresponding path program 1 times [2019-12-27 00:21:01,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:21:01,356 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139428912] [2019-12-27 00:21:01,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:21:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:21:01,420 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 00:21:01,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139428912] [2019-12-27 00:21:01,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:21:01,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:21:01,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516395393] [2019-12-27 00:21:01,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 00:21:01,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:21:01,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 00:21:01,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:21:01,422 INFO L87 Difference]: Start difference. First operand 32130 states and 134661 transitions. Second operand 7 states. [2019-12-27 00:21:03,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:21:03,384 INFO L93 Difference]: Finished difference Result 44446 states and 186269 transitions. [2019-12-27 00:21:03,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 00:21:03,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-12-27 00:21:03,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:21:03,502 INFO L225 Difference]: With dead ends: 44446 [2019-12-27 00:21:03,502 INFO L226 Difference]: Without dead ends: 44380 [2019-12-27 00:21:03,502 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:21:03,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44380 states. [2019-12-27 00:21:04,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44380 to 37411. [2019-12-27 00:21:04,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37411 states. [2019-12-27 00:21:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37411 states to 37411 states and 155951 transitions. [2019-12-27 00:21:04,263 INFO L78 Accepts]: Start accepts. Automaton has 37411 states and 155951 transitions. Word has length 19 [2019-12-27 00:21:04,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:21:04,263 INFO L462 AbstractCegarLoop]: Abstraction has 37411 states and 155951 transitions. [2019-12-27 00:21:04,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 00:21:04,264 INFO L276 IsEmpty]: Start isEmpty. Operand 37411 states and 155951 transitions. [2019-12-27 00:21:04,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:21:04,266 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:21:04,266 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:21:04,266 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:21:04,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:21:04,266 INFO L82 PathProgramCache]: Analyzing trace with hash -553915992, now seen corresponding path program 2 times [2019-12-27 00:21:04,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:21:04,267 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119427159] [2019-12-27 00:21:04,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:21:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:21:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 00:21:04,329 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119427159] [2019-12-27 00:21:04,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:21:04,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:21:04,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624582039] [2019-12-27 00:21:04,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 00:21:04,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:21:04,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 00:21:04,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:21:04,331 INFO L87 Difference]: Start difference. First operand 37411 states and 155951 transitions. Second operand 7 states. [2019-12-27 00:21:05,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:21:05,114 INFO L93 Difference]: Finished difference Result 48442 states and 191408 transitions. [2019-12-27 00:21:05,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 00:21:05,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-12-27 00:21:05,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:21:05,231 INFO L225 Difference]: With dead ends: 48442 [2019-12-27 00:21:05,232 INFO L226 Difference]: Without dead ends: 48393 [2019-12-27 00:21:05,232 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:21:05,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48393 states. [2019-12-27 00:21:05,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48393 to 32421. [2019-12-27 00:21:05,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32421 states. [2019-12-27 00:21:05,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32421 states to 32421 states and 134992 transitions. [2019-12-27 00:21:05,993 INFO L78 Accepts]: Start accepts. Automaton has 32421 states and 134992 transitions. Word has length 19 [2019-12-27 00:21:05,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:21:05,994 INFO L462 AbstractCegarLoop]: Abstraction has 32421 states and 134992 transitions. [2019-12-27 00:21:05,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 00:21:05,994 INFO L276 IsEmpty]: Start isEmpty. Operand 32421 states and 134992 transitions. [2019-12-27 00:21:05,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:21:05,996 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:21:05,997 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:21:05,997 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:21:05,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:21:05,997 INFO L82 PathProgramCache]: Analyzing trace with hash -556034532, now seen corresponding path program 3 times [2019-12-27 00:21:05,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:21:05,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314829240] [2019-12-27 00:21:05,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:21:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:21:06,084 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-27 00:21:06,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314829240] [2019-12-27 00:21:06,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:21:06,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 00:21:06,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724176122] [2019-12-27 00:21:06,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 00:21:06,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:21:06,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 00:21:06,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-12-27 00:21:06,087 INFO L87 Difference]: Start difference. First operand 32421 states and 134992 transitions. Second operand 8 states. [2019-12-27 00:21:06,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:21:06,727 INFO L93 Difference]: Finished difference Result 40579 states and 166562 transitions. [2019-12-27 00:21:06,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 00:21:06,727 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-12-27 00:21:06,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:21:06,825 INFO L225 Difference]: With dead ends: 40579 [2019-12-27 00:21:06,826 INFO L226 Difference]: Without dead ends: 40496 [2019-12-27 00:21:06,826 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-12-27 00:21:06,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40496 states. [2019-12-27 00:21:07,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40496 to 29992. [2019-12-27 00:21:07,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29992 states. [2019-12-27 00:21:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29992 states to 29992 states and 123260 transitions. [2019-12-27 00:21:07,482 INFO L78 Accepts]: Start accepts. Automaton has 29992 states and 123260 transitions. Word has length 19 [2019-12-27 00:21:07,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:21:07,482 INFO L462 AbstractCegarLoop]: Abstraction has 29992 states and 123260 transitions. [2019-12-27 00:21:07,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 00:21:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 29992 states and 123260 transitions. [2019-12-27 00:21:07,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:21:07,485 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:21:07,485 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:21:07,485 INFO L410 AbstractCegarLoop]: === Iteration 8 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:21:07,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:21:07,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1086481070, now seen corresponding path program 4 times [2019-12-27 00:21:07,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:21:07,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252341741] [2019-12-27 00:21:07,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:21:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:21:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 00:21:07,531 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252341741] [2019-12-27 00:21:07,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:21:07,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:21:07,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134733199] [2019-12-27 00:21:07,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:21:07,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:21:07,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:21:07,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:21:07,532 INFO L87 Difference]: Start difference. First operand 29992 states and 123260 transitions. Second operand 5 states. [2019-12-27 00:21:07,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:21:07,882 INFO L93 Difference]: Finished difference Result 48532 states and 195106 transitions. [2019-12-27 00:21:07,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:21:07,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-27 00:21:07,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:21:08,332 INFO L225 Difference]: With dead ends: 48532 [2019-12-27 00:21:08,332 INFO L226 Difference]: Without dead ends: 48511 [2019-12-27 00:21:08,332 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:21:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48511 states. [2019-12-27 00:21:08,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48511 to 32955. [2019-12-27 00:21:08,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32955 states. [2019-12-27 00:21:09,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32955 states to 32955 states and 136076 transitions. [2019-12-27 00:21:09,050 INFO L78 Accepts]: Start accepts. Automaton has 32955 states and 136076 transitions. Word has length 19 [2019-12-27 00:21:09,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:21:09,051 INFO L462 AbstractCegarLoop]: Abstraction has 32955 states and 136076 transitions. [2019-12-27 00:21:09,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:21:09,051 INFO L276 IsEmpty]: Start isEmpty. Operand 32955 states and 136076 transitions. [2019-12-27 00:21:09,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:21:09,052 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:21:09,052 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:21:09,052 INFO L410 AbstractCegarLoop]: === Iteration 9 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:21:09,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:21:09,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1085299040, now seen corresponding path program 5 times [2019-12-27 00:21:09,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:21:09,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36998612] [2019-12-27 00:21:09,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:21:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:21:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-12-27 00:21:09,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36998612] [2019-12-27 00:21:09,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:21:09,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:21:09,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700560814] [2019-12-27 00:21:09,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 00:21:09,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:21:09,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 00:21:09,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:21:09,102 INFO L87 Difference]: Start difference. First operand 32955 states and 136076 transitions. Second operand 6 states. [2019-12-27 00:21:09,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:21:09,484 INFO L93 Difference]: Finished difference Result 40650 states and 165615 transitions. [2019-12-27 00:21:09,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 00:21:09,485 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-12-27 00:21:09,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:21:09,579 INFO L225 Difference]: With dead ends: 40650 [2019-12-27 00:21:09,579 INFO L226 Difference]: Without dead ends: 40204 [2019-12-27 00:21:09,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-12-27 00:21:09,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40204 states. [2019-12-27 00:21:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40204 to 19471. [2019-12-27 00:21:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19471 states. [2019-12-27 00:21:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19471 states to 19471 states and 81300 transitions. [2019-12-27 00:21:10,429 INFO L78 Accepts]: Start accepts. Automaton has 19471 states and 81300 transitions. Word has length 19 [2019-12-27 00:21:10,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:21:10,429 INFO L462 AbstractCegarLoop]: Abstraction has 19471 states and 81300 transitions. [2019-12-27 00:21:10,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 00:21:10,429 INFO L276 IsEmpty]: Start isEmpty. Operand 19471 states and 81300 transitions. [2019-12-27 00:21:10,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-27 00:21:10,434 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:21:10,434 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:21:10,434 INFO L410 AbstractCegarLoop]: === Iteration 10 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:21:10,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:21:10,435 INFO L82 PathProgramCache]: Analyzing trace with hash -2102434016, now seen corresponding path program 1 times [2019-12-27 00:21:10,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:21:10,435 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781345080] [2019-12-27 00:21:10,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:21:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:21:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 00:21:10,455 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 00:21:10,455 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 00:21:10,456 WARN L364 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-27 00:21:10,456 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2019-12-27 00:21:10,468 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,468 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,468 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,468 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,469 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,469 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,469 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,469 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,469 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,469 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,469 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,470 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,470 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,470 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,470 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,470 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,470 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,471 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,471 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,471 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,471 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,471 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,471 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,471 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,472 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,472 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,472 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,472 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,472 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,472 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,473 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,473 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,473 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,473 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,473 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,473 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,473 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,473 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,474 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,474 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,474 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,474 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,474 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,474 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,475 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,475 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,475 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,475 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,475 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,475 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,475 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,476 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,476 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,476 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,476 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,476 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,476 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,477 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,477 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,477 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,477 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,477 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,477 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,477 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,478 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,478 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,478 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,478 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,478 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,478 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,479 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,479 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,479 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,479 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,479 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,479 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,479 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,480 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,480 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,480 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,480 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,480 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,480 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,480 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,481 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,481 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,481 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,481 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,481 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,482 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,482 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,482 WARN L315 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,492 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,492 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,492 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,493 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,493 WARN L315 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,494 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,495 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,495 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,495 WARN L315 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,495 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,497 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,497 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,497 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,498 WARN L315 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,498 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,498 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,499 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,499 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,500 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,500 WARN L315 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,500 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,502 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,502 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,502 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,502 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,502 WARN L315 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,503 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,503 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,503 WARN L315 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:21:10,504 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-27 00:21:10,505 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:21:10,505 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:21:10,505 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:21:10,505 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:21:10,505 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:21:10,505 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:21:10,505 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:21:10,505 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:21:10,507 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 108 transitions [2019-12-27 00:21:10,507 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 114 places, 108 transitions [2019-12-27 00:21:10,532 INFO L132 PetriNetUnfolder]: 13/182 cut-off events. [2019-12-27 00:21:10,533 INFO L133 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2019-12-27 00:21:10,537 INFO L76 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 182 events. 13/182 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 376 event pairs. 0/156 useless extension candidates. Maximal degree in co-relation 175. Up to 14 conditions per place. [2019-12-27 00:21:10,550 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 114 places, 108 transitions [2019-12-27 00:21:10,580 INFO L132 PetriNetUnfolder]: 13/182 cut-off events. [2019-12-27 00:21:10,581 INFO L133 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2019-12-27 00:21:10,586 INFO L76 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 182 events. 13/182 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 376 event pairs. 0/156 useless extension candidates. Maximal degree in co-relation 175. Up to 14 conditions per place. [2019-12-27 00:21:10,603 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6696 [2019-12-27 00:21:10,603 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:21:12,350 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10794 [2019-12-27 00:21:12,350 INFO L214 etLargeBlockEncoding]: Total number of compositions: 91 [2019-12-27 00:21:12,350 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 42 transitions [2019-12-27 00:22:18,862 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 190114 states. [2019-12-27 00:22:18,862 INFO L276 IsEmpty]: Start isEmpty. Operand 190114 states. [2019-12-27 00:22:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 00:22:18,862 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:22:18,862 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 00:22:18,862 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:22:18,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:22:18,863 INFO L82 PathProgramCache]: Analyzing trace with hash 979526836, now seen corresponding path program 1 times [2019-12-27 00:22:18,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:22:18,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830745976] [2019-12-27 00:22:18,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:22:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:22:18,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:22:18,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830745976] [2019-12-27 00:22:18,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:22:18,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:22:18,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702657834] [2019-12-27 00:22:18,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:22:18,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:22:18,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:22:18,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:22:18,903 INFO L87 Difference]: Start difference. First operand 190114 states. Second operand 4 states. [2019-12-27 00:22:20,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:22:20,604 INFO L93 Difference]: Finished difference Result 164907 states and 898952 transitions. [2019-12-27 00:22:20,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:22:20,604 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-27 00:22:20,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:22:21,192 INFO L225 Difference]: With dead ends: 164907 [2019-12-27 00:22:21,193 INFO L226 Difference]: Without dead ends: 164550 [2019-12-27 00:22:21,193 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:22:30,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164550 states. [2019-12-27 00:22:36,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164550 to 160425. [2019-12-27 00:22:36,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160425 states. [2019-12-27 00:22:38,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160425 states to 160425 states and 881891 transitions. [2019-12-27 00:22:38,408 INFO L78 Accepts]: Start accepts. Automaton has 160425 states and 881891 transitions. Word has length 5 [2019-12-27 00:22:38,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:22:38,408 INFO L462 AbstractCegarLoop]: Abstraction has 160425 states and 881891 transitions. [2019-12-27 00:22:38,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:22:38,408 INFO L276 IsEmpty]: Start isEmpty. Operand 160425 states and 881891 transitions. [2019-12-27 00:22:38,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:22:38,409 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:22:38,409 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:22:38,409 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:22:38,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:22:38,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1927401696, now seen corresponding path program 1 times [2019-12-27 00:22:38,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:22:38,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32785869] [2019-12-27 00:22:38,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:22:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:22:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:22:38,482 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32785869] [2019-12-27 00:22:38,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:22:38,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:22:38,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050700049] [2019-12-27 00:22:38,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 00:22:38,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:22:38,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 00:22:38,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:22:38,485 INFO L87 Difference]: Start difference. First operand 160425 states and 881891 transitions. Second operand 6 states. [2019-12-27 00:22:48,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:22:48,846 INFO L93 Difference]: Finished difference Result 196369 states and 1019735 transitions. [2019-12-27 00:22:48,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:22:48,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-12-27 00:22:48,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:22:49,554 INFO L225 Difference]: With dead ends: 196369 [2019-12-27 00:22:49,554 INFO L226 Difference]: Without dead ends: 196362 [2019-12-27 00:22:49,555 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:22:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196362 states. [2019-12-27 00:22:56,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196362 to 192214. [2019-12-27 00:22:56,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192214 states. [2019-12-27 00:22:58,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192214 states to 192214 states and 1004951 transitions. [2019-12-27 00:22:58,549 INFO L78 Accepts]: Start accepts. Automaton has 192214 states and 1004951 transitions. Word has length 12 [2019-12-27 00:22:58,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:22:58,550 INFO L462 AbstractCegarLoop]: Abstraction has 192214 states and 1004951 transitions. [2019-12-27 00:22:58,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 00:22:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 192214 states and 1004951 transitions. [2019-12-27 00:22:58,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:22:58,550 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:22:58,550 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:22:58,550 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:22:58,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:22:58,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1928455762, now seen corresponding path program 1 times [2019-12-27 00:22:58,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:22:58,551 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161781120] [2019-12-27 00:22:58,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:22:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:22:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:22:58,590 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161781120] [2019-12-27 00:22:58,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:22:58,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:22:58,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684261445] [2019-12-27 00:22:58,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:22:58,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:22:58,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:22:58,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:22:58,591 INFO L87 Difference]: Start difference. First operand 192214 states and 1004951 transitions. Second operand 4 states. [2019-12-27 00:23:08,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:23:08,729 INFO L93 Difference]: Finished difference Result 324757 states and 1614738 transitions. [2019-12-27 00:23:08,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:23:08,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-27 00:23:08,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:23:10,617 INFO L225 Difference]: With dead ends: 324757 [2019-12-27 00:23:10,618 INFO L226 Difference]: Without dead ends: 324680 [2019-12-27 00:23:10,618 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:23:19,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324680 states. [2019-12-27 00:23:25,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324680 to 259436. [2019-12-27 00:23:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259436 states. [2019-12-27 00:23:37,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259436 states to 259436 states and 1298130 transitions. [2019-12-27 00:23:37,156 INFO L78 Accepts]: Start accepts. Automaton has 259436 states and 1298130 transitions. Word has length 12 [2019-12-27 00:23:37,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:23:37,156 INFO L462 AbstractCegarLoop]: Abstraction has 259436 states and 1298130 transitions. [2019-12-27 00:23:37,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:23:37,156 INFO L276 IsEmpty]: Start isEmpty. Operand 259436 states and 1298130 transitions. [2019-12-27 00:23:37,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:23:37,158 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:23:37,159 INFO L411 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:23:37,159 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:23:37,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:23:37,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1693818523, now seen corresponding path program 1 times [2019-12-27 00:23:37,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:23:37,159 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813673091] [2019-12-27 00:23:37,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:23:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:23:37,237 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:23:37,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813673091] [2019-12-27 00:23:37,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77774921] [2019-12-27 00:23:37,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:23:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:23:37,317 INFO L264 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-27 00:23:37,319 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-27 00:23:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-27 00:23:37,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-27 00:23:37,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2019-12-27 00:23:37,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128965118] [2019-12-27 00:23:37,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 00:23:37,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:23:37,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 00:23:37,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2019-12-27 00:23:37,400 INFO L87 Difference]: Start difference. First operand 259436 states and 1298130 transitions. Second operand 8 states. [2019-12-27 00:23:50,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:23:50,405 INFO L93 Difference]: Finished difference Result 311148 states and 1580937 transitions. [2019-12-27 00:23:50,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 00:23:50,405 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-12-27 00:23:50,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:23:51,415 INFO L225 Difference]: With dead ends: 311148 [2019-12-27 00:23:51,416 INFO L226 Difference]: Without dead ends: 311118 [2019-12-27 00:23:51,416 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2019-12-27 00:23:53,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311118 states. Received shutdown request... [2019-12-27 00:23:59,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311118 to 274846. [2019-12-27 00:23:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274846 states. [2019-12-27 00:24:00,125 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-27 00:24:00,126 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-27 00:24:00,131 WARN L227 ceAbstractionStarter]: Timeout [2019-12-27 00:24:00,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:24:00 BasicIcfg [2019-12-27 00:24:00,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:24:00,137 INFO L168 Benchmark]: Toolchain (without parser) took 204843.91 ms. Allocated memory was 141.0 MB in the beginning and 5.3 GB in the end (delta: 5.2 GB). Free memory was 101.6 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 5.4 GB. Max. memory is 7.1 GB. [2019-12-27 00:24:00,143 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 141.0 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 00:24:00,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.02 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 101.2 MB in the beginning and 162.7 MB in the end (delta: -61.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-12-27 00:24:00,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.50 ms. Allocated memory is still 203.9 MB. Free memory was 162.7 MB in the beginning and 160.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 00:24:00,145 INFO L168 Benchmark]: Boogie Preprocessor took 24.48 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 159.9 MB in the end (delta: 953.6 kB). Peak memory consumption was 953.6 kB. Max. memory is 7.1 GB. [2019-12-27 00:24:00,145 INFO L168 Benchmark]: RCFGBuilder took 395.94 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 142.4 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-12-27 00:24:00,150 INFO L168 Benchmark]: TraceAbstraction took 203655.91 ms. Allocated memory was 203.9 MB in the beginning and 5.3 GB in the end (delta: 5.1 GB). Free memory was 141.4 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 5.3 GB. Max. memory is 7.1 GB. [2019-12-27 00:24:00,154 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 141.0 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.02 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 101.2 MB in the beginning and 162.7 MB in the end (delta: -61.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.50 ms. Allocated memory is still 203.9 MB. Free memory was 162.7 MB in the beginning and 160.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.48 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 159.9 MB in the end (delta: 953.6 kB). Peak memory consumption was 953.6 kB. Max. memory is 7.1 GB. * RCFGBuilder took 395.94 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 142.4 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 203655.91 ms. Allocated memory was 203.9 MB in the beginning and 5.3 GB in the end (delta: 5.1 GB). Free memory was 141.4 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 5.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.1s, 44 ProgramPointsBefore, 9 ProgramPointsAfterwards, 43 TransitionsBefore, 8 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 169 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 243 CheckedPairsTotal, 40 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 58 ProgramPointsBefore, 18 ProgramPointsAfterwards, 56 TransitionsBefore, 16 TransitionsAfterwards, 984 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 510 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1323 CheckedPairsTotal, 46 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 72 ProgramPointsBefore, 24 ProgramPointsAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1944 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 1011 VarBasedMoverChecksPositive, 48 VarBasedMoverChecksNegative, 26 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 3045 CheckedPairsTotal, 60 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 86 ProgramPointsBefore, 33 ProgramPointsAfterwards, 82 TransitionsBefore, 32 TransitionsAfterwards, 3216 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 1720 VarBasedMoverChecksPositive, 123 VarBasedMoverChecksNegative, 118 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 5527 CheckedPairsTotal, 71 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 100 ProgramPointsBefore, 37 ProgramPointsAfterwards, 95 TransitionsBefore, 33 TransitionsAfterwards, 4800 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 5 ChoiceCompositions, 2424 VarBasedMoverChecksPositive, 131 VarBasedMoverChecksNegative, 98 SemBasedMoverChecksPositive, 58 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 0 MoverChecksTotal, 7263 CheckedPairsTotal, 79 TotalNumberOfCompositions - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 114 ProgramPointsBefore, 45 ProgramPointsAfterwards, 108 TransitionsBefore, 42 TransitionsAfterwards, 6696 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 3478 VarBasedMoverChecksPositive, 189 VarBasedMoverChecksNegative, 153 SemBasedMoverChecksPositive, 56 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 10794 CheckedPairsTotal, 91 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 676]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 676). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Result: TIMEOUT, OverallTime: 169.6s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 39.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 155 SDtfs, 246 SDslu, 228 SDs, 0 SdLazy, 513 SolverSat, 147 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=259436occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 61.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 73517 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 5632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 92 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 14/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown