/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 02:35:02,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 02:35:02,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 02:35:03,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 02:35:03,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 02:35:03,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 02:35:03,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 02:35:03,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 02:35:03,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 02:35:03,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 02:35:03,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 02:35:03,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 02:35:03,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 02:35:03,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 02:35:03,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 02:35:03,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 02:35:03,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 02:35:03,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 02:35:03,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 02:35:03,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 02:35:03,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 02:35:03,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 02:35:03,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 02:35:03,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 02:35:03,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-18 02:35:03,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-18 02:35:03,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-18 02:35:03,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-18 02:35:03,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-18 02:35:03,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-18 02:35:03,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 02:35:03,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 02:35:03,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 02:35:03,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 02:35:03,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 02:35:03,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 02:35:03,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 02:35:03,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 02:35:03,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 02:35:03,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 02:35:03,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 02:35:03,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 02:35:03,077 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 02:35:03,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 02:35:03,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 02:35:03,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 02:35:03,079 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 02:35:03,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 02:35:03,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 02:35:03,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 02:35:03,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 02:35:03,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 02:35:03,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 02:35:03,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 02:35:03,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 02:35:03,081 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 02:35:03,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 02:35:03,081 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 02:35:03,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 02:35:03,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 02:35:03,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 02:35:03,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 02:35:03,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 02:35:03,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 02:35:03,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 02:35:03,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 02:35:03,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 02:35:03,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 02:35:03,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 02:35:03,084 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 02:35:03,084 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 02:35:03,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 02:35:03,084 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 02:35:03,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 02:35:03,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 02:35:03,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 02:35:03,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 02:35:03,569 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 02:35:03,572 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-09-18 02:35:03,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa98fd27/da262a3da1a3465a998e3e88a2d5378b/FLAG05b8cf246 [2020-09-18 02:35:04,266 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 02:35:04,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-09-18 02:35:04,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa98fd27/da262a3da1a3465a998e3e88a2d5378b/FLAG05b8cf246 [2020-09-18 02:35:04,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa98fd27/da262a3da1a3465a998e3e88a2d5378b [2020-09-18 02:35:04,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 02:35:04,551 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 02:35:04,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 02:35:04,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 02:35:04,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 02:35:04,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 02:35:04" (1/1) ... [2020-09-18 02:35:04,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689fd9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:04, skipping insertion in model container [2020-09-18 02:35:04,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 02:35:04" (1/1) ... [2020-09-18 02:35:04,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 02:35:04,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 02:35:05,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 02:35:05,209 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 02:35:05,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 02:35:05,366 INFO L208 MainTranslator]: Completed translation [2020-09-18 02:35:05,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05 WrapperNode [2020-09-18 02:35:05,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 02:35:05,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 02:35:05,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 02:35:05,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 02:35:05,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (1/1) ... [2020-09-18 02:35:05,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (1/1) ... [2020-09-18 02:35:05,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 02:35:05,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 02:35:05,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 02:35:05,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 02:35:05,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (1/1) ... [2020-09-18 02:35:05,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (1/1) ... [2020-09-18 02:35:05,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (1/1) ... [2020-09-18 02:35:05,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (1/1) ... [2020-09-18 02:35:05,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (1/1) ... [2020-09-18 02:35:05,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (1/1) ... [2020-09-18 02:35:05,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (1/1) ... [2020-09-18 02:35:05,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 02:35:05,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 02:35:05,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 02:35:05,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 02:35:05,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 02:35:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 02:35:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 02:35:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 02:35:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 02:35:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 02:35:05,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 02:35:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 02:35:05,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 02:35:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 02:35:05,537 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 02:35:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-18 02:35:05,542 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-18 02:35:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 02:35:05,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 02:35:05,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 02:35:05,546 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 02:35:06,014 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 02:35:06,014 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 02:35:06,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 02:35:06 BoogieIcfgContainer [2020-09-18 02:35:06,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 02:35:06,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 02:35:06,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 02:35:06,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 02:35:06,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 02:35:04" (1/3) ... [2020-09-18 02:35:06,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d79cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 02:35:06, skipping insertion in model container [2020-09-18 02:35:06,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:35:05" (2/3) ... [2020-09-18 02:35:06,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d79cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 02:35:06, skipping insertion in model container [2020-09-18 02:35:06,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 02:35:06" (3/3) ... [2020-09-18 02:35:06,041 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-09-18 02:35:06,052 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 02:35:06,052 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 02:35:06,064 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 02:35:06,065 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 02:35:06,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,105 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,105 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,106 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,106 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,106 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,107 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,107 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,107 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,107 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,112 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,113 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,120 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,120 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,120 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,123 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,123 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,124 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,126 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,127 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:35:06,153 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-18 02:35:06,178 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 02:35:06,178 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 02:35:06,178 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 02:35:06,179 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 02:35:06,179 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 02:35:06,179 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 02:35:06,179 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 02:35:06,179 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 02:35:06,198 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-09-18 02:35:06,200 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-18 02:35:06,259 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-18 02:35:06,259 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 02:35:06,266 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-18 02:35:06,270 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-18 02:35:06,296 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-18 02:35:06,297 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 02:35:06,298 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-18 02:35:06,301 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-09-18 02:35:06,302 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 02:35:07,877 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-09-18 02:35:07,938 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-09-18 02:35:07,939 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-09-18 02:35:07,944 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-09-18 02:35:08,041 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-09-18 02:35:08,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-18 02:35:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 02:35:08,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:08,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:08,059 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:08,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:08,067 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-09-18 02:35:08,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:08,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253380888] [2020-09-18 02:35:08,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:08,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253380888] [2020-09-18 02:35:08,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:08,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 02:35:08,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1511361798] [2020-09-18 02:35:08,304 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:08,308 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:08,326 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-18 02:35:08,326 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:08,329 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:08,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-18 02:35:08,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:08,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-18 02:35:08,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 02:35:08,351 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-09-18 02:35:08,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:08,409 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-09-18 02:35:08,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-18 02:35:08,412 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-18 02:35:08,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:08,454 INFO L225 Difference]: With dead ends: 1450 [2020-09-18 02:35:08,455 INFO L226 Difference]: Without dead ends: 1194 [2020-09-18 02:35:08,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 02:35:08,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-09-18 02:35:08,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-09-18 02:35:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-09-18 02:35:08,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-09-18 02:35:08,613 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-09-18 02:35:08,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:08,615 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-09-18 02:35:08,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-18 02:35:08,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-09-18 02:35:08,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 02:35:08,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:08,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:08,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 02:35:08,619 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:08,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:08,619 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-09-18 02:35:08,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:08,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269764870] [2020-09-18 02:35:08,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:08,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:08,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269764870] [2020-09-18 02:35:08,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:08,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 02:35:08,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [356186438] [2020-09-18 02:35:08,789 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:08,791 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:08,792 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-18 02:35:08,793 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:08,793 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:08,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 02:35:08,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:08,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 02:35:08,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 02:35:08,796 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-09-18 02:35:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:08,847 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-09-18 02:35:08,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 02:35:08,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 02:35:08,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:08,858 INFO L225 Difference]: With dead ends: 1322 [2020-09-18 02:35:08,858 INFO L226 Difference]: Without dead ends: 1066 [2020-09-18 02:35:08,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:35:08,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-09-18 02:35:08,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-09-18 02:35:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-09-18 02:35:08,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-09-18 02:35:08,905 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-09-18 02:35:08,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:08,905 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-09-18 02:35:08,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 02:35:08,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-09-18 02:35:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 02:35:08,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:08,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:08,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 02:35:08,909 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:08,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:08,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1585409501, now seen corresponding path program 1 times [2020-09-18 02:35:08,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:08,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974240259] [2020-09-18 02:35:08,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:09,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:09,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974240259] [2020-09-18 02:35:09,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:09,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 02:35:09,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2048649161] [2020-09-18 02:35:09,066 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:09,067 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:09,069 INFO L274 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-09-18 02:35:09,069 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:09,125 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:09,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 02:35:09,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:09,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 02:35:09,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 02:35:09,127 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-09-18 02:35:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:09,171 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-09-18 02:35:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 02:35:09,171 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-18 02:35:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:09,181 INFO L225 Difference]: With dead ends: 1162 [2020-09-18 02:35:09,181 INFO L226 Difference]: Without dead ends: 970 [2020-09-18 02:35:09,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:35:09,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-09-18 02:35:09,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-09-18 02:35:09,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-09-18 02:35:09,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-09-18 02:35:09,225 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-09-18 02:35:09,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:09,225 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-09-18 02:35:09,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 02:35:09,226 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-09-18 02:35:09,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 02:35:09,228 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:09,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:09,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 02:35:09,228 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:09,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:09,229 INFO L82 PathProgramCache]: Analyzing trace with hash -333650641, now seen corresponding path program 1 times [2020-09-18 02:35:09,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:09,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591494871] [2020-09-18 02:35:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:09,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:09,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591494871] [2020-09-18 02:35:09,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:09,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:35:09,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1300212624] [2020-09-18 02:35:09,386 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:09,388 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:09,391 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 44 transitions. [2020-09-18 02:35:09,391 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:09,483 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:09,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:35:09,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:09,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:35:09,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:35:09,484 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 5 states. [2020-09-18 02:35:09,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:09,544 INFO L93 Difference]: Finished difference Result 1210 states and 4120 transitions. [2020-09-18 02:35:09,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:35:09,544 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-18 02:35:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:09,549 INFO L225 Difference]: With dead ends: 1210 [2020-09-18 02:35:09,550 INFO L226 Difference]: Without dead ends: 586 [2020-09-18 02:35:09,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:35:09,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-09-18 02:35:09,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2020-09-18 02:35:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-09-18 02:35:09,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 1872 transitions. [2020-09-18 02:35:09,572 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 1872 transitions. Word has length 13 [2020-09-18 02:35:09,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:09,572 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 1872 transitions. [2020-09-18 02:35:09,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:35:09,572 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 1872 transitions. [2020-09-18 02:35:09,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-18 02:35:09,574 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:09,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:09,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 02:35:09,574 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:09,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:09,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1296364861, now seen corresponding path program 1 times [2020-09-18 02:35:09,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:09,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253292254] [2020-09-18 02:35:09,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:09,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253292254] [2020-09-18 02:35:09,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:09,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:35:09,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [277179527] [2020-09-18 02:35:09,653 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:09,655 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:09,661 INFO L274 McrAutomatonBuilder]: Finished intersection with 52 states and 100 transitions. [2020-09-18 02:35:09,662 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:09,845 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:09,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:35:09,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:09,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:35:09,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:35:09,846 INFO L87 Difference]: Start difference. First operand 586 states and 1872 transitions. Second operand 5 states. [2020-09-18 02:35:09,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:09,895 INFO L93 Difference]: Finished difference Result 706 states and 2198 transitions. [2020-09-18 02:35:09,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:35:09,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-18 02:35:09,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:09,898 INFO L225 Difference]: With dead ends: 706 [2020-09-18 02:35:09,898 INFO L226 Difference]: Without dead ends: 304 [2020-09-18 02:35:09,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:35:09,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-18 02:35:09,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-09-18 02:35:09,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-09-18 02:35:09,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 882 transitions. [2020-09-18 02:35:09,910 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 882 transitions. Word has length 15 [2020-09-18 02:35:09,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:09,910 INFO L479 AbstractCegarLoop]: Abstraction has 304 states and 882 transitions. [2020-09-18 02:35:09,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:35:09,910 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 882 transitions. [2020-09-18 02:35:09,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-18 02:35:09,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:09,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:09,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 02:35:09,912 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:09,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:09,912 INFO L82 PathProgramCache]: Analyzing trace with hash -583625760, now seen corresponding path program 1 times [2020-09-18 02:35:09,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:09,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780353989] [2020-09-18 02:35:09,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:10,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780353989] [2020-09-18 02:35:10,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:10,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:35:10,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [461413617] [2020-09-18 02:35:10,021 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:10,023 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:10,031 INFO L274 McrAutomatonBuilder]: Finished intersection with 52 states and 94 transitions. [2020-09-18 02:35:10,031 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:10,142 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:10,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:35:10,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:10,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:35:10,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:35:10,144 INFO L87 Difference]: Start difference. First operand 304 states and 882 transitions. Second operand 5 states. [2020-09-18 02:35:10,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:10,184 INFO L93 Difference]: Finished difference Result 388 states and 1110 transitions. [2020-09-18 02:35:10,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:35:10,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-18 02:35:10,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:10,187 INFO L225 Difference]: With dead ends: 388 [2020-09-18 02:35:10,187 INFO L226 Difference]: Without dead ends: 148 [2020-09-18 02:35:10,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:35:10,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-18 02:35:10,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-09-18 02:35:10,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-18 02:35:10,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 398 transitions. [2020-09-18 02:35:10,193 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 398 transitions. Word has length 17 [2020-09-18 02:35:10,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:10,193 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 398 transitions. [2020-09-18 02:35:10,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:35:10,194 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 398 transitions. [2020-09-18 02:35:10,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-18 02:35:10,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:35:10,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 02:35:10,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 02:35:10,195 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:35:10,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:35:10,195 INFO L82 PathProgramCache]: Analyzing trace with hash 355522076, now seen corresponding path program 1 times [2020-09-18 02:35:10,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:35:10,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464326910] [2020-09-18 02:35:10,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:35:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:35:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:35:10,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464326910] [2020-09-18 02:35:10,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:35:10,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 02:35:10,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [996091708] [2020-09-18 02:35:10,300 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:35:10,302 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:35:10,307 INFO L274 McrAutomatonBuilder]: Finished intersection with 26 states and 32 transitions. [2020-09-18 02:35:10,307 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:35:10,332 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:35:10,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 02:35:10,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:35:10,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 02:35:10,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-18 02:35:10,334 INFO L87 Difference]: Start difference. First operand 148 states and 398 transitions. Second operand 5 states. [2020-09-18 02:35:10,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:35:10,369 INFO L93 Difference]: Finished difference Result 124 states and 322 transitions. [2020-09-18 02:35:10,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-18 02:35:10,370 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-18 02:35:10,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:35:10,370 INFO L225 Difference]: With dead ends: 124 [2020-09-18 02:35:10,370 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 02:35:10,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-18 02:35:10,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 02:35:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 02:35:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 02:35:10,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 02:35:10,376 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-18 02:35:10,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:35:10,377 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 02:35:10,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 02:35:10,377 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 02:35:10,377 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 02:35:10,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-18 02:35:10,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 02:35:10 BasicIcfg [2020-09-18 02:35:10,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 02:35:10,386 INFO L168 Benchmark]: Toolchain (without parser) took 5837.77 ms. Allocated memory was 137.4 MB in the beginning and 303.0 MB in the end (delta: 165.7 MB). Free memory was 99.1 MB in the beginning and 200.7 MB in the end (delta: -101.7 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:10,392 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-18 02:35:10,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 815.17 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.4 MB in the beginning and 157.7 MB in the end (delta: -59.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:10,395 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.37 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 155.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:10,396 INFO L168 Benchmark]: Boogie Preprocessor took 29.95 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 154.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:10,396 INFO L168 Benchmark]: RCFGBuilder took 565.66 ms. Allocated memory is still 200.8 MB. Free memory was 154.2 MB in the beginning and 129.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:10,400 INFO L168 Benchmark]: TraceAbstraction took 4356.35 ms. Allocated memory was 200.8 MB in the beginning and 303.0 MB in the end (delta: 102.2 MB). Free memory was 128.9 MB in the beginning and 200.7 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-09-18 02:35:10,408 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 815.17 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.4 MB in the beginning and 157.7 MB in the end (delta: -59.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.37 ms. Allocated memory is still 200.8 MB. Free memory was 157.7 MB in the beginning and 155.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.95 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 154.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 565.66 ms. Allocated memory is still 200.8 MB. Free memory was 154.2 MB in the beginning and 129.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4356.35 ms. Allocated memory was 200.8 MB in the beginning and 303.0 MB in the end (delta: 102.2 MB). Free memory was 128.9 MB in the beginning and 200.7 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1043 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 203 SDtfs, 214 SDslu, 276 SDs, 0 SdLazy, 51 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 3479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...