/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/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-12 00:12:57,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-12 00:12:57,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-12 00:12:57,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-12 00:12:57,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-12 00:12:57,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-12 00:12:57,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-12 00:12:57,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-12 00:12:57,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-12 00:12:57,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-12 00:12:57,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-12 00:12:57,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-12 00:12:57,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-12 00:12:57,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-12 00:12:57,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-12 00:12:57,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-12 00:12:57,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-12 00:12:57,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-12 00:12:57,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-12 00:12:57,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-12 00:12:57,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-12 00:12:57,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-12 00:12:57,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-12 00:12:57,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-12 00:12:57,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-12 00:12:57,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-12 00:12:57,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-12 00:12:57,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-12 00:12:57,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-12 00:12:57,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-12 00:12:57,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-12 00:12:57,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-12 00:12:57,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-12 00:12:57,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-12 00:12:57,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-12 00:12:57,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-12 00:12:57,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-12 00:12:57,312 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-12 00:12:57,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-12 00:12:57,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-12 00:12:57,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-12 00:12:57,314 INFO L138 SettingsManager]: * Use SBE=true [2020-09-12 00:12:57,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-12 00:12:57,315 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-12 00:12:57,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-12 00:12:57,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-12 00:12:57,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-12 00:12:57,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-12 00:12:57,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-12 00:12:57,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-12 00:12:57,316 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-12 00:12:57,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-12 00:12:57,317 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-12 00:12:57,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-12 00:12:57,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-12 00:12:57,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-12 00:12:57,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-12 00:12:57,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-12 00:12:57,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-12 00:12:57,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-12 00:12:57,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-12 00:12:57,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-12 00:12:57,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-12 00:12:57,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-12 00:12:57,320 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-12 00:12:57,321 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-12 00:12:57,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-12 00:12:57,321 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-12 00:12:57,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-12 00:12:57,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-12 00:12:57,775 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-12 00:12:57,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-12 00:12:57,777 INFO L275 PluginConnector]: CDTParser initialized [2020-09-12 00:12:57,780 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2020-09-12 00:12:57,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c3f9880c/785f417f29e34cf0bfa7be97774dece1/FLAGf37e64003 [2020-09-12 00:12:58,449 INFO L306 CDTParser]: Found 1 translation units. [2020-09-12 00:12:58,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2020-09-12 00:12:58,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c3f9880c/785f417f29e34cf0bfa7be97774dece1/FLAGf37e64003 [2020-09-12 00:12:58,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c3f9880c/785f417f29e34cf0bfa7be97774dece1 [2020-09-12 00:12:58,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-12 00:12:58,739 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-12 00:12:58,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-12 00:12:58,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-12 00:12:58,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-12 00:12:58,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:12:58" (1/1) ... [2020-09-12 00:12:58,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24bd55be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:58, skipping insertion in model container [2020-09-12 00:12:58,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 12:12:58" (1/1) ... [2020-09-12 00:12:58,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-12 00:12:58,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-12 00:12:59,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:12:59,385 INFO L203 MainTranslator]: Completed pre-run [2020-09-12 00:12:59,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-12 00:12:59,545 INFO L208 MainTranslator]: Completed translation [2020-09-12 00:12:59,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59 WrapperNode [2020-09-12 00:12:59,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-12 00:12:59,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-12 00:12:59,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-12 00:12:59,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-12 00:12:59,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (1/1) ... [2020-09-12 00:12:59,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (1/1) ... [2020-09-12 00:12:59,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-12 00:12:59,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-12 00:12:59,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-12 00:12:59,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-12 00:12:59,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (1/1) ... [2020-09-12 00:12:59,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (1/1) ... [2020-09-12 00:12:59,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (1/1) ... [2020-09-12 00:12:59,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (1/1) ... [2020-09-12 00:12:59,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (1/1) ... [2020-09-12 00:12:59,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (1/1) ... [2020-09-12 00:12:59,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (1/1) ... [2020-09-12 00:12:59,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-12 00:12:59,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-12 00:12:59,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-12 00:12:59,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-12 00:12:59,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-12 00:12:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-12 00:12:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-12 00:12:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-12 00:12:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-12 00:12:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-12 00:12:59,729 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-12 00:12:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-12 00:12:59,730 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-12 00:12:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-12 00:12:59,731 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-12 00:12:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-12 00:12:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-12 00:12:59,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-12 00:12:59,734 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-12 00:13:00,100 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-12 00:13:00,100 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-12 00:13:00,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:13:00 BoogieIcfgContainer [2020-09-12 00:13:00,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-12 00:13:00,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-12 00:13:00,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-12 00:13:00,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-12 00:13:00,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 12:12:58" (1/3) ... [2020-09-12 00:13:00,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c9afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:13:00, skipping insertion in model container [2020-09-12 00:13:00,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 12:12:59" (2/3) ... [2020-09-12 00:13:00,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c9afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 12:13:00, skipping insertion in model container [2020-09-12 00:13:00,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 12:13:00" (3/3) ... [2020-09-12 00:13:00,115 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2020-09-12 00:13:00,126 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-12 00:13:00,126 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-12 00:13:00,136 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-12 00:13:00,137 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-12 00:13:00,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,169 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,169 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,169 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,170 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,171 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,171 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,171 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,172 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,173 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,188 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,188 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,193 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-12 00:13:00,218 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-12 00:13:00,243 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-12 00:13:00,244 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-12 00:13:00,244 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-12 00:13:00,244 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-12 00:13:00,244 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-12 00:13:00,244 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-12 00:13:00,245 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-12 00:13:00,245 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-12 00:13:00,263 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-12 00:13:00,266 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-12 00:13:00,318 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-12 00:13:00,319 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:13:00,331 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-12 00:13:00,335 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-12 00:13:00,359 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-12 00:13:00,359 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-12 00:13:00,360 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-12 00:13:00,362 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-12 00:13:00,363 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-12 00:13:01,708 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-09-12 00:13:01,837 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2732 [2020-09-12 00:13:01,838 INFO L214 etLargeBlockEncoding]: Total number of compositions: 60 [2020-09-12 00:13:01,843 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-12 00:13:01,871 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-12 00:13:01,873 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-12 00:13:01,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-12 00:13:01,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:13:01,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:13:01,884 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:13:01,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:13:01,892 INFO L82 PathProgramCache]: Analyzing trace with hash 760003701, now seen corresponding path program 1 times [2020-09-12 00:13:01,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:13:01,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761037288] [2020-09-12 00:13:01,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:13:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:13:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:13:02,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761037288] [2020-09-12 00:13:02,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:13:02,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-12 00:13:02,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [359926995] [2020-09-12 00:13:02,182 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:13:02,185 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:13:02,202 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-12 00:13:02,203 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:13:02,205 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:13:02,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-12 00:13:02,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:13:02,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-12 00:13:02,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-12 00:13:02,228 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-12 00:13:02,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:13:02,270 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-09-12 00:13:02,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-12 00:13:02,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-12 00:13:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:13:02,291 INFO L225 Difference]: With dead ends: 290 [2020-09-12 00:13:02,291 INFO L226 Difference]: Without dead ends: 226 [2020-09-12 00:13:02,293 INFO L675 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 [2020-09-12 00:13:02,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-12 00:13:02,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-12 00:13:02,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-12 00:13:02,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-09-12 00:13:02,378 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-09-12 00:13:02,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:13:02,379 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-09-12 00:13:02,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-12 00:13:02,379 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-09-12 00:13:02,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-12 00:13:02,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:13:02,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:13:02,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-12 00:13:02,384 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:13:02,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:13:02,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2069729619, now seen corresponding path program 1 times [2020-09-12 00:13:02,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:13:02,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118547521] [2020-09-12 00:13:02,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:13:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:13:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:13:02,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118547521] [2020-09-12 00:13:02,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:13:02,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:13:02,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1844530340] [2020-09-12 00:13:02,581 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:13:02,581 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:13:02,589 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions. [2020-09-12 00:13:02,589 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:13:02,644 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-12 00:13:02,678 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:13:02,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:13:02,680 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:13:02,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:13:02,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:13:02,681 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 4 states. [2020-09-12 00:13:02,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:13:02,749 INFO L93 Difference]: Finished difference Result 242 states and 605 transitions. [2020-09-12 00:13:02,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-12 00:13:02,750 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-12 00:13:02,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:13:02,753 INFO L225 Difference]: With dead ends: 242 [2020-09-12 00:13:02,753 INFO L226 Difference]: Without dead ends: 178 [2020-09-12 00:13:02,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:13:02,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-12 00:13:02,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-09-12 00:13:02,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-12 00:13:02,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 434 transitions. [2020-09-12 00:13:02,770 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 434 transitions. Word has length 9 [2020-09-12 00:13:02,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:13:02,770 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 434 transitions. [2020-09-12 00:13:02,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:13:02,770 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 434 transitions. [2020-09-12 00:13:02,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-12 00:13:02,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:13:02,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:13:02,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-12 00:13:02,772 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:13:02,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:13:02,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1183022512, now seen corresponding path program 1 times [2020-09-12 00:13:02,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:13:02,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349089741] [2020-09-12 00:13:02,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:13:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:13:02,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:13:02,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349089741] [2020-09-12 00:13:02,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:13:02,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:13:02,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [781876377] [2020-09-12 00:13:02,873 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:13:02,874 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:13:02,877 INFO L274 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-09-12 00:13:02,877 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:13:02,956 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2031#(<= ~__unbuffered_cnt~0 0)] [2020-09-12 00:13:02,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-12 00:13:02,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:13:02,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-12 00:13:02,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-12 00:13:02,958 INFO L87 Difference]: Start difference. First operand 178 states and 434 transitions. Second operand 6 states. [2020-09-12 00:13:03,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:13:03,019 INFO L93 Difference]: Finished difference Result 163 states and 368 transitions. [2020-09-12 00:13:03,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-12 00:13:03,019 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-09-12 00:13:03,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:13:03,021 INFO L225 Difference]: With dead ends: 163 [2020-09-12 00:13:03,021 INFO L226 Difference]: Without dead ends: 126 [2020-09-12 00:13:03,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-12 00:13:03,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-09-12 00:13:03,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-09-12 00:13:03,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-12 00:13:03,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 278 transitions. [2020-09-12 00:13:03,031 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 278 transitions. Word has length 11 [2020-09-12 00:13:03,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:13:03,031 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 278 transitions. [2020-09-12 00:13:03,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-12 00:13:03,032 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 278 transitions. [2020-09-12 00:13:03,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-12 00:13:03,033 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:13:03,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:13:03,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-12 00:13:03,034 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:13:03,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:13:03,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1548024821, now seen corresponding path program 1 times [2020-09-12 00:13:03,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:13:03,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560738072] [2020-09-12 00:13:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:13:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:13:03,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:13:03,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560738072] [2020-09-12 00:13:03,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:13:03,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-12 00:13:03,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1377364625] [2020-09-12 00:13:03,140 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:13:03,141 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:13:03,146 INFO L274 McrAutomatonBuilder]: Finished intersection with 39 states and 66 transitions. [2020-09-12 00:13:03,146 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:13:03,311 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2455#(<= ~__unbuffered_cnt~0 0)] [2020-09-12 00:13:03,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-12 00:13:03,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:13:03,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-12 00:13:03,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-12 00:13:03,313 INFO L87 Difference]: Start difference. First operand 126 states and 278 transitions. Second operand 7 states. [2020-09-12 00:13:03,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:13:03,378 INFO L93 Difference]: Finished difference Result 118 states and 260 transitions. [2020-09-12 00:13:03,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-12 00:13:03,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-09-12 00:13:03,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:13:03,380 INFO L225 Difference]: With dead ends: 118 [2020-09-12 00:13:03,380 INFO L226 Difference]: Without dead ends: 108 [2020-09-12 00:13:03,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-12 00:13:03,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-09-12 00:13:03,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-09-12 00:13:03,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-09-12 00:13:03,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 242 transitions. [2020-09-12 00:13:03,387 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 242 transitions. Word has length 14 [2020-09-12 00:13:03,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:13:03,388 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 242 transitions. [2020-09-12 00:13:03,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-12 00:13:03,388 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 242 transitions. [2020-09-12 00:13:03,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-12 00:13:03,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:13:03,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:13:03,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-12 00:13:03,390 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:13:03,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:13:03,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2137678742, now seen corresponding path program 1 times [2020-09-12 00:13:03,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:13:03,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482854062] [2020-09-12 00:13:03,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:13:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:13:03,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:13:03,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482854062] [2020-09-12 00:13:03,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:13:03,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-12 00:13:03,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [757921232] [2020-09-12 00:13:03,441 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:13:03,443 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:13:03,449 INFO L274 McrAutomatonBuilder]: Finished intersection with 46 states and 77 transitions. [2020-09-12 00:13:03,449 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:13:03,462 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:13:03,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-12 00:13:03,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:13:03,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-12 00:13:03,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-12 00:13:03,464 INFO L87 Difference]: Start difference. First operand 108 states and 242 transitions. Second operand 3 states. [2020-09-12 00:13:03,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:13:03,471 INFO L93 Difference]: Finished difference Result 133 states and 289 transitions. [2020-09-12 00:13:03,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-12 00:13:03,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-09-12 00:13:03,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:13:03,472 INFO L225 Difference]: With dead ends: 133 [2020-09-12 00:13:03,472 INFO L226 Difference]: Without dead ends: 54 [2020-09-12 00:13:03,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-12 00:13:03,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-12 00:13:03,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-12 00:13:03,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-12 00:13:03,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2020-09-12 00:13:03,477 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 17 [2020-09-12 00:13:03,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:13:03,477 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2020-09-12 00:13:03,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-12 00:13:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2020-09-12 00:13:03,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-12 00:13:03,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:13:03,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:13:03,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-12 00:13:03,479 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:13:03,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:13:03,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1164645812, now seen corresponding path program 2 times [2020-09-12 00:13:03,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:13:03,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694456210] [2020-09-12 00:13:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:13:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:13:03,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:13:03,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694456210] [2020-09-12 00:13:03,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:13:03,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:13:03,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [226691278] [2020-09-12 00:13:03,543 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:13:03,545 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:13:03,554 INFO L274 McrAutomatonBuilder]: Finished intersection with 57 states and 105 transitions. [2020-09-12 00:13:03,554 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:13:03,595 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:13:03,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:13:03,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:13:03,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:13:03,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:13:03,596 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand 4 states. [2020-09-12 00:13:03,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:13:03,612 INFO L93 Difference]: Finished difference Result 67 states and 119 transitions. [2020-09-12 00:13:03,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-12 00:13:03,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-12 00:13:03,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:13:03,613 INFO L225 Difference]: With dead ends: 67 [2020-09-12 00:13:03,613 INFO L226 Difference]: Without dead ends: 30 [2020-09-12 00:13:03,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:13:03,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-12 00:13:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-12 00:13:03,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-12 00:13:03,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-09-12 00:13:03,616 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-09-12 00:13:03,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:13:03,616 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-09-12 00:13:03,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:13:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-09-12 00:13:03,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-12 00:13:03,617 INFO L414 BasicCegarLoop]: Found error trace [2020-09-12 00:13:03,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-12 00:13:03,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-12 00:13:03,618 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-12 00:13:03,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-12 00:13:03,618 INFO L82 PathProgramCache]: Analyzing trace with hash 2098338434, now seen corresponding path program 3 times [2020-09-12 00:13:03,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-12 00:13:03,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698777603] [2020-09-12 00:13:03,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-12 00:13:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-12 00:13:03,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-12 00:13:03,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698777603] [2020-09-12 00:13:03,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-12 00:13:03,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-12 00:13:03,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1912399710] [2020-09-12 00:13:03,678 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-12 00:13:03,680 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-12 00:13:03,686 INFO L274 McrAutomatonBuilder]: Finished intersection with 41 states and 59 transitions. [2020-09-12 00:13:03,686 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-12 00:13:03,704 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-12 00:13:03,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-12 00:13:03,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-12 00:13:03,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-12 00:13:03,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-12 00:13:03,706 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-09-12 00:13:03,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-12 00:13:03,717 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-09-12 00:13:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-12 00:13:03,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-12 00:13:03,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-12 00:13:03,718 INFO L225 Difference]: With dead ends: 29 [2020-09-12 00:13:03,718 INFO L226 Difference]: Without dead ends: 0 [2020-09-12 00:13:03,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-12 00:13:03,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-12 00:13:03,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-12 00:13:03,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-12 00:13:03,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-12 00:13:03,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-12 00:13:03,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-12 00:13:03,720 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-12 00:13:03,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-12 00:13:03,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-12 00:13:03,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-12 00:13:03,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-12 00:13:03,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 12:13:03 BasicIcfg [2020-09-12 00:13:03,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-12 00:13:03,729 INFO L168 Benchmark]: Toolchain (without parser) took 4993.81 ms. Allocated memory was 140.5 MB in the beginning and 246.9 MB in the end (delta: 106.4 MB). Free memory was 101.3 MB in the beginning and 130.4 MB in the end (delta: -29.1 MB). Peak memory consumption was 77.3 MB. Max. memory is 7.1 GB. [2020-09-12 00:13:03,730 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-12 00:13:03,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.50 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 162.0 MB in the end (delta: -61.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-12 00:13:03,732 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.74 ms. Allocated memory is still 203.9 MB. Free memory was 162.0 MB in the beginning and 160.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-12 00:13:03,732 INFO L168 Benchmark]: Boogie Preprocessor took 30.62 ms. Allocated memory is still 203.9 MB. Free memory was 160.0 MB in the beginning and 158.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-12 00:13:03,733 INFO L168 Benchmark]: RCFGBuilder took 467.32 ms. Allocated memory is still 203.9 MB. Free memory was 158.0 MB in the beginning and 136.2 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-12 00:13:03,734 INFO L168 Benchmark]: TraceAbstraction took 3619.82 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 135.6 MB in the beginning and 130.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2020-09-12 00:13:03,739 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 805.50 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 100.7 MB in the beginning and 162.0 MB in the end (delta: -61.3 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.74 ms. Allocated memory is still 203.9 MB. Free memory was 162.0 MB in the beginning and 160.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.62 ms. Allocated memory is still 203.9 MB. Free memory was 160.0 MB in the beginning and 158.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.32 ms. Allocated memory is still 203.9 MB. Free memory was 158.0 MB in the beginning and 136.2 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3619.82 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 135.6 MB in the beginning and 130.4 MB in the end (delta: 5.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 665 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2732 CheckedPairsTotal, 60 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 141 SDtfs, 107 SDslu, 217 SDs, 0 SdLazy, 103 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 258 GetRequests, 231 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 2838 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...