/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/safe004_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:35:21,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:35:21,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:35:21,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:35:21,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:35:21,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:35:21,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:35:21,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:35:21,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:35:21,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:35:21,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:35:21,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:35:21,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:35:21,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:35:21,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:35:21,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:35:21,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:35:21,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:35:21,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:35:21,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:35:21,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:35:21,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:35:21,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:35:21,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:35:21,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 13:35:21,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:35:21,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:35:21,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:35:21,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:35:21,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:35:21,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:35:21,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:35:21,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:35:21,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:35:21,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:35:21,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:35:21,171 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 [2020-10-16 13:35:21,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:35:21,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:35:21,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:35:21,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:35:21,217 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:35:21,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:35:21,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:35:21,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:35:21,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:35:21,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:35:21,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:35:21,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:35:21,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:35:21,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:35:21,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:35:21,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:35:21,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:35:21,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:35:21,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:35:21,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:35:21,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:35:21,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:35:21,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:35:21,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:35:21,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:35:21,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:35:21,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:35:21,224 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:35:21,224 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:35:21,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:35:21,224 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:35:21,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:35:21,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:35:21,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:35:21,548 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:35:21,549 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:35:21,549 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-10-16 13:35:21,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9170be6c3/c9db57d4223b4b5eadbab8c4efe4d924/FLAG627720f8a [2020-10-16 13:35:22,123 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:35:22,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe004_tso.oepc.i [2020-10-16 13:35:22,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9170be6c3/c9db57d4223b4b5eadbab8c4efe4d924/FLAG627720f8a [2020-10-16 13:35:22,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9170be6c3/c9db57d4223b4b5eadbab8c4efe4d924 [2020-10-16 13:35:22,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:35:22,433 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:35:22,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:35:22,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:35:22,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:35:22,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:35:22" (1/1) ... [2020-10-16 13:35:22,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465e1690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:22, skipping insertion in model container [2020-10-16 13:35:22,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:35:22" (1/1) ... [2020-10-16 13:35:22,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:35:22,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:35:22,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:35:22,942 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:35:22,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:35:23,061 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:35:23,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23 WrapperNode [2020-10-16 13:35:23,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:35:23,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:35:23,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:35:23,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:35:23,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (1/1) ... [2020-10-16 13:35:23,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (1/1) ... [2020-10-16 13:35:23,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:35:23,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:35:23,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:35:23,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:35:23,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (1/1) ... [2020-10-16 13:35:23,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (1/1) ... [2020-10-16 13:35:23,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (1/1) ... [2020-10-16 13:35:23,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (1/1) ... [2020-10-16 13:35:23,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (1/1) ... [2020-10-16 13:35:23,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (1/1) ... [2020-10-16 13:35:23,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (1/1) ... [2020-10-16 13:35:23,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:35:23,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:35:23,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:35:23,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:35:23,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (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 [2020-10-16 13:35:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:35:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:35:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:35:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:35:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:35:23,215 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:35:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:35:23,216 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:35:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:35:23,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:35:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:35:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:35:23,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:35:23,219 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:35:23,584 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:35:23,584 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:35:23,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:35:23 BoogieIcfgContainer [2020-10-16 13:35:23,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:35:23,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:35:23,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:35:23,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:35:23,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:35:22" (1/3) ... [2020-10-16 13:35:23,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2d91fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:35:23, skipping insertion in model container [2020-10-16 13:35:23,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:23" (2/3) ... [2020-10-16 13:35:23,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2d91fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:35:23, skipping insertion in model container [2020-10-16 13:35:23,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:35:23" (3/3) ... [2020-10-16 13:35:23,595 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc.i [2020-10-16 13:35:23,607 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:35:23,607 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:35:23,615 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:35:23,616 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:35:23,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,644 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,644 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,645 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,645 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,647 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,647 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,648 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,648 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,649 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,649 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,654 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,654 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,665 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,666 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,669 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,670 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,670 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:23,680 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:35:23,693 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:35:23,711 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:35:23,712 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:35:23,712 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:35:23,712 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:35:23,712 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:35:23,712 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:35:23,713 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:35:23,713 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:35:23,724 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:35:23,725 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:35:23,727 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:35:23,728 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 13:35:23,774 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 13:35:23,775 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:35:23,779 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 13:35:23,782 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:35:24,986 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-10-16 13:35:25,118 INFO L132 LiptonReduction]: Checked pairs total: 2581 [2020-10-16 13:35:25,119 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 13:35:25,126 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 13:35:25,166 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 13:35:25,171 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 13:35:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:35:25,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:25,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:25,198 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:25,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:25,204 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-10-16 13:35:25,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:25,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092853531] [2020-10-16 13:35:25,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:25,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092853531] [2020-10-16 13:35:25,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:25,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:35:25,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [239792671] [2020-10-16 13:35:25,456 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:25,459 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:25,473 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:35:25,473 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:25,477 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:25,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:25,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:25,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:25,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:25,499 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 13:35:25,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:25,533 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-16 13:35:25,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:25,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 13:35:25,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:25,550 INFO L225 Difference]: With dead ends: 290 [2020-10-16 13:35:25,550 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 13:35:25,551 INFO L677 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 [2020-10-16 13:35:25,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 13:35:25,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 13:35:25,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 13:35:25,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-16 13:35:25,619 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-16 13:35:25,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:25,620 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-16 13:35:25,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:25,621 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-16 13:35:25,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:35:25,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:25,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:25,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:35:25,623 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:25,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:25,623 INFO L82 PathProgramCache]: Analyzing trace with hash 956609449, now seen corresponding path program 1 times [2020-10-16 13:35:25,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:25,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090489155] [2020-10-16 13:35:25,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:25,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:25,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090489155] [2020-10-16 13:35:25,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:25,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:35:25,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [927249925] [2020-10-16 13:35:25,687 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:25,688 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:25,691 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-16 13:35:25,691 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:25,726 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:25,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:25,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:25,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:25,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:25,728 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-16 13:35:25,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:25,739 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-10-16 13:35:25,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:25,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 13:35:25,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:25,743 INFO L225 Difference]: With dead ends: 212 [2020-10-16 13:35:25,743 INFO L226 Difference]: Without dead ends: 212 [2020-10-16 13:35:25,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:25,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-16 13:35:25,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-10-16 13:35:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-16 13:35:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-10-16 13:35:25,767 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-10-16 13:35:25,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:25,767 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-10-16 13:35:25,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-10-16 13:35:25,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:35:25,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:25,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:25,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:35:25,770 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:25,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:25,770 INFO L82 PathProgramCache]: Analyzing trace with hash -409878926, now seen corresponding path program 1 times [2020-10-16 13:35:25,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:25,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883388144] [2020-10-16 13:35:25,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:25,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883388144] [2020-10-16 13:35:25,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:25,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:35:25,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1147979384] [2020-10-16 13:35:25,851 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:25,852 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:25,854 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-10-16 13:35:25,855 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:25,903 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:25,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:35:25,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:25,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:35:25,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:35:25,904 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-10-16 13:35:25,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:25,933 INFO L93 Difference]: Finished difference Result 293 states and 785 transitions. [2020-10-16 13:35:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:35:25,933 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-16 13:35:25,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:25,936 INFO L225 Difference]: With dead ends: 293 [2020-10-16 13:35:25,936 INFO L226 Difference]: Without dead ends: 197 [2020-10-16 13:35:25,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:35:25,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-16 13:35:25,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-10-16 13:35:25,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-16 13:35:25,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 525 transitions. [2020-10-16 13:35:25,974 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 525 transitions. Word has length 10 [2020-10-16 13:35:25,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:25,974 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 525 transitions. [2020-10-16 13:35:25,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:35:25,975 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 525 transitions. [2020-10-16 13:35:25,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:35:25,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:25,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:25,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:35:25,981 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:25,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:25,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1131193343, now seen corresponding path program 1 times [2020-10-16 13:35:25,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:25,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300419526] [2020-10-16 13:35:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:26,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300419526] [2020-10-16 13:35:26,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:26,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:35:26,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1451397] [2020-10-16 13:35:26,042 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:26,043 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:26,045 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-10-16 13:35:26,046 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:26,051 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:26,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:26,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:26,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:26,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:26,052 INFO L87 Difference]: Start difference. First operand 197 states and 525 transitions. Second operand 3 states. [2020-10-16 13:35:26,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:26,062 INFO L93 Difference]: Finished difference Result 269 states and 681 transitions. [2020-10-16 13:35:26,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:26,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 13:35:26,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:26,065 INFO L225 Difference]: With dead ends: 269 [2020-10-16 13:35:26,065 INFO L226 Difference]: Without dead ends: 209 [2020-10-16 13:35:26,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-16 13:35:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 191. [2020-10-16 13:35:26,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-16 13:35:26,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 476 transitions. [2020-10-16 13:35:26,077 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 476 transitions. Word has length 11 [2020-10-16 13:35:26,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:26,077 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 476 transitions. [2020-10-16 13:35:26,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:26,078 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 476 transitions. [2020-10-16 13:35:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:35:26,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:26,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:26,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:35:26,080 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:26,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:26,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1251156259, now seen corresponding path program 1 times [2020-10-16 13:35:26,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:26,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226520350] [2020-10-16 13:35:26,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:26,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:26,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226520350] [2020-10-16 13:35:26,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:26,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:35:26,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1045211751] [2020-10-16 13:35:26,168 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:26,169 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:26,172 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 45 transitions. [2020-10-16 13:35:26,173 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:26,229 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:26,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:35:26,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:26,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:35:26,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:35:26,231 INFO L87 Difference]: Start difference. First operand 191 states and 476 transitions. Second operand 4 states. [2020-10-16 13:35:26,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:26,276 INFO L93 Difference]: Finished difference Result 250 states and 578 transitions. [2020-10-16 13:35:26,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:35:26,277 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:35:26,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:26,278 INFO L225 Difference]: With dead ends: 250 [2020-10-16 13:35:26,278 INFO L226 Difference]: Without dead ends: 158 [2020-10-16 13:35:26,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:35:26,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-16 13:35:26,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-10-16 13:35:26,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-16 13:35:26,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 330 transitions. [2020-10-16 13:35:26,287 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 330 transitions. Word has length 11 [2020-10-16 13:35:26,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:26,287 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 330 transitions. [2020-10-16 13:35:26,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:35:26,287 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 330 transitions. [2020-10-16 13:35:26,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:35:26,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:26,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:26,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:35:26,289 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:26,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:26,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1304596236, now seen corresponding path program 1 times [2020-10-16 13:35:26,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:26,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838314930] [2020-10-16 13:35:26,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:26,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838314930] [2020-10-16 13:35:26,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:26,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:35:26,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2047651564] [2020-10-16 13:35:26,321 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:26,322 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:26,324 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-16 13:35:26,324 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:26,343 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:26,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:26,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:26,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:26,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:26,344 INFO L87 Difference]: Start difference. First operand 146 states and 330 transitions. Second operand 3 states. [2020-10-16 13:35:26,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:26,349 INFO L93 Difference]: Finished difference Result 138 states and 304 transitions. [2020-10-16 13:35:26,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:26,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 13:35:26,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:26,351 INFO L225 Difference]: With dead ends: 138 [2020-10-16 13:35:26,351 INFO L226 Difference]: Without dead ends: 138 [2020-10-16 13:35:26,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:26,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-16 13:35:26,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-16 13:35:26,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-16 13:35:26,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 304 transitions. [2020-10-16 13:35:26,357 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 304 transitions. Word has length 11 [2020-10-16 13:35:26,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:26,358 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 304 transitions. [2020-10-16 13:35:26,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:26,358 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 304 transitions. [2020-10-16 13:35:26,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:35:26,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:26,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:26,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:35:26,360 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:26,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:26,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1787779324, now seen corresponding path program 1 times [2020-10-16 13:35:26,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:26,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762407093] [2020-10-16 13:35:26,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:26,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:26,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762407093] [2020-10-16 13:35:26,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:26,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:35:26,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [102489557] [2020-10-16 13:35:26,390 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:26,391 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:26,394 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-16 13:35:26,394 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:26,401 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:26,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:26,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:26,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:26,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:26,402 INFO L87 Difference]: Start difference. First operand 138 states and 304 transitions. Second operand 3 states. [2020-10-16 13:35:26,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:26,413 INFO L93 Difference]: Finished difference Result 146 states and 304 transitions. [2020-10-16 13:35:26,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:26,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 13:35:26,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:26,415 INFO L225 Difference]: With dead ends: 146 [2020-10-16 13:35:26,415 INFO L226 Difference]: Without dead ends: 56 [2020-10-16 13:35:26,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:26,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-16 13:35:26,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-16 13:35:26,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-16 13:35:26,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 108 transitions. [2020-10-16 13:35:26,418 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 108 transitions. Word has length 12 [2020-10-16 13:35:26,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:26,418 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 108 transitions. [2020-10-16 13:35:26,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:26,419 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 108 transitions. [2020-10-16 13:35:26,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:35:26,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:26,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:26,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:35:26,420 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:26,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:26,420 INFO L82 PathProgramCache]: Analyzing trace with hash 413447767, now seen corresponding path program 1 times [2020-10-16 13:35:26,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:26,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539682768] [2020-10-16 13:35:26,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:26,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:26,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539682768] [2020-10-16 13:35:26,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:26,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:35:26,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1067569735] [2020-10-16 13:35:26,451 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:26,453 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:26,457 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-10-16 13:35:26,457 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:26,465 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:26,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:35:26,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:26,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:35:26,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:35:26,466 INFO L87 Difference]: Start difference. First operand 56 states and 108 transitions. Second operand 4 states. [2020-10-16 13:35:26,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:26,482 INFO L93 Difference]: Finished difference Result 64 states and 120 transitions. [2020-10-16 13:35:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:35:26,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:35:26,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:26,484 INFO L225 Difference]: With dead ends: 64 [2020-10-16 13:35:26,484 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 13:35:26,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:35:26,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 13:35:26,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 13:35:26,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 13:35:26,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2020-10-16 13:35:26,487 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 13 [2020-10-16 13:35:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:26,487 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2020-10-16 13:35:26,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:35:26,487 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-10-16 13:35:26,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:35:26,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:26,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:26,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 13:35:26,488 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:26,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:26,489 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 2 times [2020-10-16 13:35:26,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:26,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021943978] [2020-10-16 13:35:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:26,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021943978] [2020-10-16 13:35:26,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:26,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:35:26,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [549101601] [2020-10-16 13:35:26,543 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:26,544 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:26,548 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-10-16 13:35:26,548 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:26,564 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:26,588 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:26,604 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:26,619 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:26,631 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:26,636 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4813#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-16 13:35:26,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:35:26,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:26,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:35:26,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:35:26,637 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand 5 states. [2020-10-16 13:35:26,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:26,682 INFO L93 Difference]: Finished difference Result 45 states and 76 transitions. [2020-10-16 13:35:26,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:35:26,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 13:35:26,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:26,683 INFO L225 Difference]: With dead ends: 45 [2020-10-16 13:35:26,683 INFO L226 Difference]: Without dead ends: 31 [2020-10-16 13:35:26,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:35:26,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-16 13:35:26,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-16 13:35:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-16 13:35:26,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2020-10-16 13:35:26,685 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 13 [2020-10-16 13:35:26,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:26,686 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2020-10-16 13:35:26,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:35:26,686 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-10-16 13:35:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:35:26,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:26,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:26,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 13:35:26,687 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:26,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:26,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-10-16 13:35:26,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:26,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176613629] [2020-10-16 13:35:26,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:26,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:26,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176613629] [2020-10-16 13:35:26,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:26,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:35:26,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [178761291] [2020-10-16 13:35:26,769 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:26,770 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:26,775 INFO L258 McrAutomatonBuilder]: Finished intersection with 35 states and 54 transitions. [2020-10-16 13:35:26,776 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:26,816 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:26,881 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4931#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:35:26,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:35:26,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:26,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:35:26,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:35:26,883 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand 7 states. [2020-10-16 13:35:26,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:26,906 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2020-10-16 13:35:26,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:35:26,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-16 13:35:26,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:26,907 INFO L225 Difference]: With dead ends: 28 [2020-10-16 13:35:26,907 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:35:26,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:35:26,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:35:26,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:35:26,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:35:26,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:35:26,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-16 13:35:26,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:26,908 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:35:26,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:35:26,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:35:26,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:35:26,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 13:35:26,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:35:26 BasicIcfg [2020-10-16 13:35:26,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:35:26,914 INFO L168 Benchmark]: Toolchain (without parser) took 4482.32 ms. Allocated memory was 140.5 MB in the beginning and 245.9 MB in the end (delta: 105.4 MB). Free memory was 102.8 MB in the beginning and 115.0 MB in the end (delta: -12.2 MB). Peak memory consumption was 93.2 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:26,915 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-16 13:35:26,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.33 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 160.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:26,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.06 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 157.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:26,918 INFO L168 Benchmark]: Boogie Preprocessor took 26.76 ms. Allocated memory is still 203.4 MB. Free memory was 157.6 MB in the beginning and 156.6 MB in the end (delta: 948.4 kB). Peak memory consumption was 948.4 kB. Max. memory is 7.1 GB. [2020-10-16 13:35:26,918 INFO L168 Benchmark]: RCFGBuilder took 449.88 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 134.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:26,919 INFO L168 Benchmark]: TraceAbstraction took 3324.60 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 133.5 MB in the beginning and 115.0 MB in the end (delta: 18.5 MB). Peak memory consumption was 61.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:26,924 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 628.33 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 160.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.06 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 157.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.76 ms. Allocated memory is still 203.4 MB. Free memory was 157.6 MB in the beginning and 156.6 MB in the end (delta: 948.4 kB). Peak memory consumption was 948.4 kB. Max. memory is 7.1 GB. * RCFGBuilder took 449.88 ms. Allocated memory is still 203.4 MB. Free memory was 156.6 MB in the beginning and 134.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3324.60 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 133.5 MB in the beginning and 115.0 MB in the end (delta: 18.5 MB). Peak memory consumption was 61.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 664 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 34 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2581 MoverChecksTotal - 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 197 SDtfs, 107 SDslu, 180 SDs, 0 SdLazy, 85 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 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, 10 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 3095 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...