/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/safe002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 23:24:48,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 23:24:48,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 23:24:48,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 23:24:48,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 23:24:48,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 23:24:48,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 23:24:48,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 23:24:48,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 23:24:48,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 23:24:48,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 23:24:48,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 23:24:48,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 23:24:48,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 23:24:48,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 23:24:48,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 23:24:48,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 23:24:48,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 23:24:48,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 23:24:48,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 23:24:48,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 23:24:48,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 23:24:48,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 23:24:48,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 23:24:48,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-11 23:24:48,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-11 23:24:48,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-11 23:24:48,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-11 23:24:48,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-11 23:24:48,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-11 23:24:48,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 23:24:48,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 23:24:48,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 23:24:48,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 23:24:48,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 23:24:48,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 23:24:48,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 23:24:48,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 23:24:48,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 23:24:48,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 23:24:48,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 23:24:48,404 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 [2020-09-11 23:24:48,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 23:24:48,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 23:24:48,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 23:24:48,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 23:24:48,433 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 23:24:48,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 23:24:48,433 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 23:24:48,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 23:24:48,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 23:24:48,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 23:24:48,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 23:24:48,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 23:24:48,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 23:24:48,434 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 23:24:48,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 23:24:48,435 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 23:24:48,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 23:24:48,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 23:24:48,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 23:24:48,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 23:24:48,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 23:24:48,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 23:24:48,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 23:24:48,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-11 23:24:48,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 23:24:48,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 23:24:48,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 23:24:48,437 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-11 23:24:48,437 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-11 23:24:48,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 23:24:48,438 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-11 23:24:48,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 23:24:48,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 23:24:48,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 23:24:48,870 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 23:24:48,870 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 23:24:48,873 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2020-09-11 23:24:48,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c8eefe1a/7fd8a0259d4e4b94908d2a09215c1a62/FLAG857b438bf [2020-09-11 23:24:49,574 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 23:24:49,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2020-09-11 23:24:49,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c8eefe1a/7fd8a0259d4e4b94908d2a09215c1a62/FLAG857b438bf [2020-09-11 23:24:49,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2c8eefe1a/7fd8a0259d4e4b94908d2a09215c1a62 [2020-09-11 23:24:49,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 23:24:49,852 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 23:24:49,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 23:24:49,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 23:24:49,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 23:24:49,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:24:49" (1/1) ... [2020-09-11 23:24:49,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@763f8a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:49, skipping insertion in model container [2020-09-11 23:24:49,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:24:49" (1/1) ... [2020-09-11 23:24:49,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 23:24:49,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 23:24:50,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:24:50,452 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 23:24:50,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 23:24:50,593 INFO L208 MainTranslator]: Completed translation [2020-09-11 23:24:50,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50 WrapperNode [2020-09-11 23:24:50,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 23:24:50,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 23:24:50,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 23:24:50,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 23:24:50,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (1/1) ... [2020-09-11 23:24:50,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (1/1) ... [2020-09-11 23:24:50,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 23:24:50,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 23:24:50,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 23:24:50,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 23:24:50,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (1/1) ... [2020-09-11 23:24:50,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (1/1) ... [2020-09-11 23:24:50,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (1/1) ... [2020-09-11 23:24:50,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (1/1) ... [2020-09-11 23:24:50,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (1/1) ... [2020-09-11 23:24:50,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (1/1) ... [2020-09-11 23:24:50,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (1/1) ... [2020-09-11 23:24:50,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 23:24:50,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 23:24:50,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 23:24:50,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 23:24:50,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (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 [2020-09-11 23:24:50,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 23:24:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 23:24:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 23:24:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 23:24:50,773 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 23:24:50,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 23:24:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 23:24:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 23:24:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 23:24:50,774 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 23:24:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 23:24:50,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 23:24:50,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 23:24:50,777 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 23:24:51,126 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 23:24:51,127 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 23:24:51,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:24:51 BoogieIcfgContainer [2020-09-11 23:24:51,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 23:24:51,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 23:24:51,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 23:24:51,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 23:24:51,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 11:24:49" (1/3) ... [2020-09-11 23:24:51,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6872f48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:24:51, skipping insertion in model container [2020-09-11 23:24:51,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:24:50" (2/3) ... [2020-09-11 23:24:51,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6872f48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:24:51, skipping insertion in model container [2020-09-11 23:24:51,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:24:51" (3/3) ... [2020-09-11 23:24:51,142 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2020-09-11 23:24:51,154 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 23:24:51,155 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-11 23:24:51,165 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 23:24:51,166 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 23:24:51,209 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,210 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,210 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,210 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,211 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,211 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,212 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,212 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,214 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,214 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,215 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,215 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,220 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,228 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,229 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,231 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,232 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,232 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 23:24:51,256 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 23:24:51,279 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 23:24:51,280 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 23:24:51,280 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-11 23:24:51,280 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-11 23:24:51,280 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 23:24:51,280 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 23:24:51,280 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 23:24:51,281 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 23:24:51,299 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-11 23:24:51,301 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-11 23:24:51,355 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-11 23:24:51,355 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:24:51,361 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 46 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. [2020-09-11 23:24:51,365 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-11 23:24:51,387 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-11 23:24:51,388 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 23:24:51,389 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 46 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. [2020-09-11 23:24:51,391 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-11 23:24:51,392 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-11 23:24:52,898 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-09-11 23:24:52,941 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-09-11 23:24:52,941 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-09-11 23:24:52,946 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-11 23:24:52,974 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-11 23:24:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-11 23:24:52,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 23:24:52,987 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:24:52,988 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:24:52,988 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:24:52,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:24:52,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-09-11 23:24:53,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:24:53,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191695710] [2020-09-11 23:24:53,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:24:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:24:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:24:53,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191695710] [2020-09-11 23:24:53,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:24:53,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:24:53,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1153822939] [2020-09-11 23:24:53,248 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:24:53,251 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:24:53,266 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-11 23:24:53,266 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:24:53,268 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:24:53,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:24:53,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:24:53,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:24:53,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:24:53,288 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-11 23:24:53,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:24:53,343 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-09-11 23:24:53,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:24:53,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-11 23:24:53,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:24:53,363 INFO L225 Difference]: With dead ends: 282 [2020-09-11 23:24:53,363 INFO L226 Difference]: Without dead ends: 218 [2020-09-11 23:24:53,365 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 [2020-09-11 23:24:53,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-09-11 23:24:53,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-09-11 23:24:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-11 23:24:53,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-09-11 23:24:53,441 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-09-11 23:24:53,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:24:53,443 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-09-11 23:24:53,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:24:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-09-11 23:24:53,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 23:24:53,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:24:53,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:24:53,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 23:24:53,445 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:24:53,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:24:53,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1298976658, now seen corresponding path program 1 times [2020-09-11 23:24:53,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:24:53,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642201480] [2020-09-11 23:24:53,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:24:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:24:53,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:24:53,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642201480] [2020-09-11 23:24:53,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:24:53,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:24:53,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1387725570] [2020-09-11 23:24:53,577 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:24:53,578 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:24:53,581 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-09-11 23:24:53,581 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:24:53,618 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:24:53,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:24:53,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:24:53,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:24:53,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:24:53,621 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-09-11 23:24:53,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:24:53,666 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-09-11 23:24:53,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:24:53,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-11 23:24:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:24:53,670 INFO L225 Difference]: With dead ends: 242 [2020-09-11 23:24:53,670 INFO L226 Difference]: Without dead ends: 146 [2020-09-11 23:24:53,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:24:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-11 23:24:53,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-09-11 23:24:53,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-11 23:24:53,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-09-11 23:24:53,701 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-09-11 23:24:53,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:24:53,701 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-09-11 23:24:53,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:24:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-09-11 23:24:53,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 23:24:53,706 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:24:53,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:24:53,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 23:24:53,707 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:24:53,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:24:53,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times [2020-09-11 23:24:53,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:24:53,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857232211] [2020-09-11 23:24:53,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:24:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:24:53,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:24:53,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857232211] [2020-09-11 23:24:53,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:24:53,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:24:53,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [464438698] [2020-09-11 23:24:53,788 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:24:53,790 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:24:53,792 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-11 23:24:53,793 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:24:53,808 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:24:53,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:24:53,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:24:53,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:24:53,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:24:53,809 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-09-11 23:24:53,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:24:53,824 INFO L93 Difference]: Finished difference Result 138 states and 336 transitions. [2020-09-11 23:24:53,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:24:53,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-11 23:24:53,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:24:53,826 INFO L225 Difference]: With dead ends: 138 [2020-09-11 23:24:53,827 INFO L226 Difference]: Without dead ends: 138 [2020-09-11 23:24:53,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:24:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-09-11 23:24:53,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-09-11 23:24:53,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-11 23:24:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 336 transitions. [2020-09-11 23:24:53,837 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 336 transitions. Word has length 11 [2020-09-11 23:24:53,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:24:53,838 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 336 transitions. [2020-09-11 23:24:53,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:24:53,838 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 336 transitions. [2020-09-11 23:24:53,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 23:24:53,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:24:53,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:24:53,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 23:24:53,840 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:24:53,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:24:53,840 INFO L82 PathProgramCache]: Analyzing trace with hash -178767453, now seen corresponding path program 1 times [2020-09-11 23:24:53,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:24:53,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818834733] [2020-09-11 23:24:53,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:24:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:24:53,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:24:53,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818834733] [2020-09-11 23:24:53,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:24:53,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 23:24:53,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [431999513] [2020-09-11 23:24:53,907 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:24:53,909 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:24:53,911 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-09-11 23:24:53,911 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:24:53,938 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:24:53,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 23:24:53,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:24:53,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 23:24:53,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:24:53,939 INFO L87 Difference]: Start difference. First operand 138 states and 336 transitions. Second operand 3 states. [2020-09-11 23:24:53,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:24:53,945 INFO L93 Difference]: Finished difference Result 134 states and 324 transitions. [2020-09-11 23:24:53,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 23:24:53,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-11 23:24:53,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:24:53,947 INFO L225 Difference]: With dead ends: 134 [2020-09-11 23:24:53,947 INFO L226 Difference]: Without dead ends: 134 [2020-09-11 23:24:53,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 23:24:53,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-09-11 23:24:53,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-09-11 23:24:53,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-11 23:24:53,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 324 transitions. [2020-09-11 23:24:53,956 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 324 transitions. Word has length 12 [2020-09-11 23:24:53,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:24:53,957 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 324 transitions. [2020-09-11 23:24:53,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 23:24:53,957 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 324 transitions. [2020-09-11 23:24:53,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:24:53,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:24:53,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:24:53,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 23:24:53,959 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:24:53,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:24:53,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1648184308, now seen corresponding path program 1 times [2020-09-11 23:24:53,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:24:53,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111905634] [2020-09-11 23:24:53,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:24:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:24:54,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:24:54,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111905634] [2020-09-11 23:24:54,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:24:54,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:24:54,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1591289157] [2020-09-11 23:24:54,020 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:24:54,021 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:24:54,025 INFO L274 McrAutomatonBuilder]: Finished intersection with 31 states and 50 transitions. [2020-09-11 23:24:54,025 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:24:54,161 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:24:54,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:24:54,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:24:54,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:24:54,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:24:54,162 INFO L87 Difference]: Start difference. First operand 134 states and 324 transitions. Second operand 4 states. [2020-09-11 23:24:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:24:54,183 INFO L93 Difference]: Finished difference Result 194 states and 466 transitions. [2020-09-11 23:24:54,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:24:54,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-11 23:24:54,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:24:54,185 INFO L225 Difference]: With dead ends: 194 [2020-09-11 23:24:54,185 INFO L226 Difference]: Without dead ends: 104 [2020-09-11 23:24:54,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:24:54,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-09-11 23:24:54,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-09-11 23:24:54,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-11 23:24:54,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 246 transitions. [2020-09-11 23:24:54,192 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 246 transitions. Word has length 13 [2020-09-11 23:24:54,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:24:54,192 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 246 transitions. [2020-09-11 23:24:54,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:24:54,193 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 246 transitions. [2020-09-11 23:24:54,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:24:54,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:24:54,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:24:54,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 23:24:54,194 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:24:54,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:24:54,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1261556210, now seen corresponding path program 2 times [2020-09-11 23:24:54,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:24:54,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668481334] [2020-09-11 23:24:54,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:24:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:24:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:24:54,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668481334] [2020-09-11 23:24:54,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:24:54,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:24:54,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [924154753] [2020-09-11 23:24:54,246 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:24:54,247 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:24:54,251 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 40 transitions. [2020-09-11 23:24:54,251 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:24:54,316 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:24:54,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:24:54,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:24:54,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:24:54,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:24:54,317 INFO L87 Difference]: Start difference. First operand 104 states and 246 transitions. Second operand 4 states. [2020-09-11 23:24:54,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:24:54,338 INFO L93 Difference]: Finished difference Result 128 states and 298 transitions. [2020-09-11 23:24:54,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:24:54,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-11 23:24:54,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:24:54,340 INFO L225 Difference]: With dead ends: 128 [2020-09-11 23:24:54,340 INFO L226 Difference]: Without dead ends: 68 [2020-09-11 23:24:54,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:24:54,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-11 23:24:54,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-11 23:24:54,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-11 23:24:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-09-11 23:24:54,345 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 13 [2020-09-11 23:24:54,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:24:54,345 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-09-11 23:24:54,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:24:54,345 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-09-11 23:24:54,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 23:24:54,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:24:54,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:24:54,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 23:24:54,347 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:24:54,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:24:54,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 3 times [2020-09-11 23:24:54,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:24:54,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031048533] [2020-09-11 23:24:54,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:24:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:24:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:24:54,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031048533] [2020-09-11 23:24:54,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:24:54,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 23:24:54,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2124202904] [2020-09-11 23:24:54,426 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:24:54,427 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:24:54,430 INFO L274 McrAutomatonBuilder]: Finished intersection with 23 states and 31 transitions. [2020-09-11 23:24:54,430 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:24:54,492 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:24:54,528 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:24:54,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:24:54,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:24:54,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:24:54,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:24:54,529 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-09-11 23:24:54,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:24:54,575 INFO L93 Difference]: Finished difference Result 81 states and 157 transitions. [2020-09-11 23:24:54,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 23:24:54,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-11 23:24:54,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:24:54,576 INFO L225 Difference]: With dead ends: 81 [2020-09-11 23:24:54,576 INFO L226 Difference]: Without dead ends: 59 [2020-09-11 23:24:54,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:24:54,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-11 23:24:54,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-11 23:24:54,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-11 23:24:54,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 114 transitions. [2020-09-11 23:24:54,580 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 114 transitions. Word has length 13 [2020-09-11 23:24:54,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:24:54,581 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 114 transitions. [2020-09-11 23:24:54,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:24:54,581 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 114 transitions. [2020-09-11 23:24:54,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 23:24:54,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:24:54,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:24:54,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 23:24:54,586 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:24:54,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:24:54,587 INFO L82 PathProgramCache]: Analyzing trace with hash 433937672, now seen corresponding path program 1 times [2020-09-11 23:24:54,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:24:54,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112796476] [2020-09-11 23:24:54,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:24:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:24:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:24:54,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112796476] [2020-09-11 23:24:54,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:24:54,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:24:54,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [638392825] [2020-09-11 23:24:54,716 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:24:54,718 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:24:54,722 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 38 transitions. [2020-09-11 23:24:54,722 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:24:54,795 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3649#(<= ~__unbuffered_cnt~0 0)] [2020-09-11 23:24:54,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 23:24:54,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:24:54,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 23:24:54,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 23:24:54,796 INFO L87 Difference]: Start difference. First operand 59 states and 114 transitions. Second operand 6 states. [2020-09-11 23:24:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:24:54,858 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2020-09-11 23:24:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 23:24:54,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-09-11 23:24:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:24:54,860 INFO L225 Difference]: With dead ends: 60 [2020-09-11 23:24:54,860 INFO L226 Difference]: Without dead ends: 45 [2020-09-11 23:24:54,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:24:54,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-11 23:24:54,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-11 23:24:54,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-11 23:24:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2020-09-11 23:24:54,866 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 14 [2020-09-11 23:24:54,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:24:54,866 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2020-09-11 23:24:54,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 23:24:54,866 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2020-09-11 23:24:54,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-11 23:24:54,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:24:54,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:24:54,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 23:24:54,867 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:24:54,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:24:54,868 INFO L82 PathProgramCache]: Analyzing trace with hash 567169455, now seen corresponding path program 1 times [2020-09-11 23:24:54,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:24:54,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777818893] [2020-09-11 23:24:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:24:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:24:54,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:24:54,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777818893] [2020-09-11 23:24:54,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:24:54,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 23:24:54,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1071117445] [2020-09-11 23:24:54,986 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:24:54,988 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:24:54,991 INFO L274 McrAutomatonBuilder]: Finished intersection with 27 states and 37 transitions. [2020-09-11 23:24:54,991 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:24:55,021 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-11 23:24:55,049 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3808#(<= ~__unbuffered_cnt~0 0)] [2020-09-11 23:24:55,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 23:24:55,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:24:55,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 23:24:55,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-11 23:24:55,050 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand 7 states. [2020-09-11 23:24:55,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:24:55,099 INFO L93 Difference]: Finished difference Result 42 states and 66 transitions. [2020-09-11 23:24:55,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 23:24:55,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-09-11 23:24:55,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:24:55,100 INFO L225 Difference]: With dead ends: 42 [2020-09-11 23:24:55,100 INFO L226 Difference]: Without dead ends: 36 [2020-09-11 23:24:55,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-11 23:24:55,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-11 23:24:55,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-11 23:24:55,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-11 23:24:55,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-09-11 23:24:55,102 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-09-11 23:24:55,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:24:55,103 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-09-11 23:24:55,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 23:24:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-09-11 23:24:55,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-11 23:24:55,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 23:24:55,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 23:24:55,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 23:24:55,104 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 23:24:55,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 23:24:55,104 INFO L82 PathProgramCache]: Analyzing trace with hash -412776350, now seen corresponding path program 1 times [2020-09-11 23:24:55,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 23:24:55,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88951306] [2020-09-11 23:24:55,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 23:24:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 23:24:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 23:24:55,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88951306] [2020-09-11 23:24:55,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 23:24:55,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 23:24:55,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1173254671] [2020-09-11 23:24:55,199 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-11 23:24:55,200 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-11 23:24:55,205 INFO L274 McrAutomatonBuilder]: Finished intersection with 30 states and 41 transitions. [2020-09-11 23:24:55,205 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-11 23:24:55,237 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-11 23:24:55,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 23:24:55,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 23:24:55,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 23:24:55,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 23:24:55,238 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 4 states. [2020-09-11 23:24:55,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 23:24:55,248 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-09-11 23:24:55,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 23:24:55,248 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-09-11 23:24:55,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 23:24:55,248 INFO L225 Difference]: With dead ends: 35 [2020-09-11 23:24:55,249 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 23:24:55,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 23:24:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 23:24:55,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 23:24:55,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 23:24:55,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 23:24:55,250 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-11 23:24:55,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 23:24:55,250 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 23:24:55,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 23:24:55,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 23:24:55,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 23:24:55,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-11 23:24:55,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 11:24:55 BasicIcfg [2020-09-11 23:24:55,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 23:24:55,258 INFO L168 Benchmark]: Toolchain (without parser) took 5410.19 ms. Allocated memory was 140.5 MB in the beginning and 282.6 MB in the end (delta: 142.1 MB). Free memory was 102.5 MB in the beginning and 236.5 MB in the end (delta: -134.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. [2020-09-11 23:24:55,259 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-11 23:24:55,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.42 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 161.3 MB in the end (delta: -59.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-09-11 23:24:55,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.95 ms. Allocated memory is still 203.9 MB. Free memory was 161.3 MB in the beginning and 159.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-11 23:24:55,261 INFO L168 Benchmark]: Boogie Preprocessor took 31.01 ms. Allocated memory is still 203.9 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-11 23:24:55,262 INFO L168 Benchmark]: RCFGBuilder took 446.71 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 136.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-09-11 23:24:55,263 INFO L168 Benchmark]: TraceAbstraction took 4122.16 ms. Allocated memory was 203.9 MB in the beginning and 282.6 MB in the end (delta: 78.6 MB). Free memory was 135.2 MB in the beginning and 236.5 MB in the end (delta: -101.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-11 23:24:55,267 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 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.42 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 161.3 MB in the end (delta: -59.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.95 ms. Allocated memory is still 203.9 MB. Free memory was 161.3 MB in the beginning and 159.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.01 ms. Allocated memory is still 203.9 MB. Free memory was 159.4 MB in the beginning and 157.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 446.71 ms. Allocated memory is still 203.9 MB. Free memory was 157.4 MB in the beginning and 136.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4122.16 ms. Allocated memory was 203.9 MB in the beginning and 282.6 MB in the end (delta: 78.6 MB). Free memory was 135.2 MB in the beginning and 236.5 MB in the end (delta: -101.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 655 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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: 3.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 180 SDtfs, 111 SDslu, 191 SDs, 0 SdLazy, 122 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 102 SyntacticMatches, 7 SemanticMatches, 29 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 3881 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...