/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/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:50:46,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:50:46,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:50:46,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:50:46,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:50:46,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:50:46,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:50:46,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:50:46,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:50:46,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:50:46,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:50:46,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:50:46,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:50:46,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:50:46,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:50:46,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:50:46,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:50:46,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:50:46,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:50:46,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:50:46,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:50:46,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:50:46,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:50:46,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:50:46,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:50:46,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:50:46,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:50:46,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:50:46,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:50:46,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:50:46,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:50:46,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:50:46,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:50:46,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:50:46,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:50:46,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:50:46,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:50:46,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:50:46,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:50:46,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:50:46,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:50:46,491 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 13:50:46,543 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:50:46,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:50:46,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:50:46,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:50:46,545 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:50:46,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:50:46,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:50:46,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:50:46,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:50:46,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:50:46,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:50:46,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:50:46,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:50:46,549 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:50:46,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:50:46,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:50:46,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:50:46,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:50:46,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:50:46,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:50:46,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:50:46,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:50:46,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:50:46,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:50:46,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:50:46,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:50:46,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:50:46,556 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:50:46,557 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:50:46,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:50:46,558 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:50:46,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:50:46,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:50:46,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:50:46,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:50:46,861 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:50:46,862 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-10-16 13:50:46,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ae6d30e5/8fb9e314b9e24ca293a1653d80638a86/FLAG49ead7ca5 [2020-10-16 13:50:47,452 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:50:47,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-10-16 13:50:47,468 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ae6d30e5/8fb9e314b9e24ca293a1653d80638a86/FLAG49ead7ca5 [2020-10-16 13:50:47,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ae6d30e5/8fb9e314b9e24ca293a1653d80638a86 [2020-10-16 13:50:47,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:50:47,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:50:47,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:50:47,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:50:47,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:50:47,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:50:47" (1/1) ... [2020-10-16 13:50:47,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720494db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:47, skipping insertion in model container [2020-10-16 13:50:47,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:50:47" (1/1) ... [2020-10-16 13:50:47,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:50:47,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:50:48,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:50:48,329 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:50:48,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:50:48,492 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:50:48,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48 WrapperNode [2020-10-16 13:50:48,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:50:48,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:50:48,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:50:48,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:50:48,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (1/1) ... [2020-10-16 13:50:48,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (1/1) ... [2020-10-16 13:50:48,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:50:48,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:50:48,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:50:48,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:50:48,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (1/1) ... [2020-10-16 13:50:48,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (1/1) ... [2020-10-16 13:50:48,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (1/1) ... [2020-10-16 13:50:48,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (1/1) ... [2020-10-16 13:50:48,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (1/1) ... [2020-10-16 13:50:48,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (1/1) ... [2020-10-16 13:50:48,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (1/1) ... [2020-10-16 13:50:48,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:50:48,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:50:48,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:50:48,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:50:48,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (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 13:50:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:50:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:50:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:50:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:50:48,633 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:50:48,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:50:48,634 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:50:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:50:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:50:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:50:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:50:48,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:50:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:50:48,637 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 13:50:49,008 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:50:49,008 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:50:49,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:50:49 BoogieIcfgContainer [2020-10-16 13:50:49,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:50:49,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:50:49,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:50:49,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:50:49,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:50:47" (1/3) ... [2020-10-16 13:50:49,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c66f946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:50:49, skipping insertion in model container [2020-10-16 13:50:49,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:48" (2/3) ... [2020-10-16 13:50:49,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c66f946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:50:49, skipping insertion in model container [2020-10-16 13:50:49,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:50:49" (3/3) ... [2020-10-16 13:50:49,020 INFO L111 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2020-10-16 13:50:49,030 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:50:49,030 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:50:49,037 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:50:49,038 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:50:49,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,066 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,066 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,066 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,067 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,067 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,068 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,068 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,069 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,069 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,070 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,071 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,071 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,076 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,076 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,083 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,084 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,093 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,093 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,093 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:50:49,097 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:50:49,111 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:50:49,131 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:50:49,131 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:50:49,132 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:50:49,132 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:50:49,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:50:49,132 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:50:49,132 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:50:49,132 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:50:49,146 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:50:49,147 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:50:49,150 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-16 13:50:49,152 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-16 13:50:49,197 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-16 13:50:49,198 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:50:49,203 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 13:50:49,206 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:50:50,213 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-16 13:50:50,297 INFO L132 LiptonReduction]: Checked pairs total: 2447 [2020-10-16 13:50:50,298 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 13:50:50,305 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-16 13:50:50,338 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-16 13:50:50,340 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-16 13:50:50,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:50:50,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:50,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:50,350 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:50,368 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-10-16 13:50:50,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:50,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367662598] [2020-10-16 13:50:50,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:50,568 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 13:50:50,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367662598] [2020-10-16 13:50:50,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:50,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:50:50,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [74393941] [2020-10-16 13:50:50,572 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:50,575 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:50,598 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:50:50,599 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:50,605 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:50:50,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 13:50:50,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:50,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 13:50:50,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:50:50,623 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-16 13:50:50,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:50,647 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-16 13:50:50,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 13:50:50,649 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-16 13:50:50,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:50,666 INFO L225 Difference]: With dead ends: 362 [2020-10-16 13:50:50,666 INFO L226 Difference]: Without dead ends: 298 [2020-10-16 13:50:50,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 13:50:50,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-16 13:50:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-16 13:50:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-16 13:50:50,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-16 13:50:50,748 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-16 13:50:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:50,749 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-16 13:50:50,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 13:50:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-16 13:50:50,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:50:50,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:50,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:50,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:50:50,751 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:50,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:50,752 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-10-16 13:50:50,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:50,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191161986] [2020-10-16 13:50:50,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:50,844 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 13:50:50,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191161986] [2020-10-16 13:50:50,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:50,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:50:50,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [790268308] [2020-10-16 13:50:50,846 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:50,847 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:50,848 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 13:50:50,848 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:50,849 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:50:50,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:50:50,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:50,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:50:50,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:50:50,851 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-16 13:50:50,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:50,897 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-16 13:50:50,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:50:50,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 13:50:50,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:50,903 INFO L225 Difference]: With dead ends: 217 [2020-10-16 13:50:50,904 INFO L226 Difference]: Without dead ends: 217 [2020-10-16 13:50:50,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 13:50:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-16 13:50:50,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-16 13:50:50,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-16 13:50:50,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-16 13:50:50,946 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-16 13:50:50,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:50,946 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-16 13:50:50,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:50:50,947 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-16 13:50:50,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:50:50,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:50,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:50,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:50:50,949 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:50,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:50,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-10-16 13:50:50,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:50,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541407779] [2020-10-16 13:50:50,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:50:51,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541407779] [2020-10-16 13:50:51,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:51,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:50:51,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2010921140] [2020-10-16 13:50:51,019 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:51,020 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:51,024 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 36 transitions. [2020-10-16 13:50:51,024 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:51,119 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2424#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:50:51,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:50:51,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:51,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:50:51,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:50:51,121 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 5 states. [2020-10-16 13:50:51,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:51,149 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-16 13:50:51,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:50:51,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 13:50:51,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:51,151 INFO L225 Difference]: With dead ends: 136 [2020-10-16 13:50:51,151 INFO L226 Difference]: Without dead ends: 136 [2020-10-16 13:50:51,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:50:51,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-16 13:50:51,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-16 13:50:51,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-16 13:50:51,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-16 13:50:51,160 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-16 13:50:51,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:51,161 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-16 13:50:51,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:50:51,161 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-16 13:50:51,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:50:51,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:51,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:51,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:50:51,163 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:51,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:51,164 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-10-16 13:50:51,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:51,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316925706] [2020-10-16 13:50:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:51,225 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 13:50:51,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316925706] [2020-10-16 13:50:51,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:51,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:50:51,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [169276884] [2020-10-16 13:50:51,226 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:51,228 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:51,232 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 49 transitions. [2020-10-16 13:50:51,232 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:51,312 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2838#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:50:51,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 13:50:51,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:51,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 13:50:51,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-16 13:50:51,313 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 6 states. [2020-10-16 13:50:51,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:51,357 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-16 13:50:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:50:51,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-16 13:50:51,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:51,359 INFO L225 Difference]: With dead ends: 109 [2020-10-16 13:50:51,359 INFO L226 Difference]: Without dead ends: 109 [2020-10-16 13:50:51,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-16 13:50:51,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-16 13:50:51,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-16 13:50:51,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-16 13:50:51,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-16 13:50:51,365 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-16 13:50:51,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:51,365 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-16 13:50:51,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 13:50:51,366 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-16 13:50:51,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:50:51,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:51,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:51,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:50:51,368 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:51,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:51,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-10-16 13:50:51,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:51,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314781228] [2020-10-16 13:50:51,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:51,448 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 13:50:51,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314781228] [2020-10-16 13:50:51,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:51,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:50:51,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [851203218] [2020-10-16 13:50:51,449 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:51,451 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:51,459 INFO L258 McrAutomatonBuilder]: Finished intersection with 50 states and 85 transitions. [2020-10-16 13:50:51,459 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:51,542 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:50:51,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:50:51,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:51,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:50:51,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:50:51,544 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-10-16 13:50:51,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:51,574 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-16 13:50:51,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:50:51,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 13:50:51,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:51,576 INFO L225 Difference]: With dead ends: 135 [2020-10-16 13:50:51,576 INFO L226 Difference]: Without dead ends: 55 [2020-10-16 13:50:51,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:50:51,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-16 13:50:51,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-16 13:50:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-16 13:50:51,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-16 13:50:51,580 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-16 13:50:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:51,580 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-16 13:50:51,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:50:51,580 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-16 13:50:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:50:51,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:51,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:51,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:50:51,582 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:51,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:51,582 INFO L82 PathProgramCache]: Analyzing trace with hash -442498565, now seen corresponding path program 2 times [2020-10-16 13:50:51,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:51,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228211560] [2020-10-16 13:50:51,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:51,648 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 13:50:51,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228211560] [2020-10-16 13:50:51,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:51,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:50:51,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [788078538] [2020-10-16 13:50:51,650 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:51,653 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:51,673 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 26 transitions. [2020-10-16 13:50:51,673 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:51,691 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:50:51,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:50:51,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:51,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:50:51,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:50:51,693 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-16 13:50:51,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:51,756 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2020-10-16 13:50:51,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:50:51,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 13:50:51,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:51,758 INFO L225 Difference]: With dead ends: 75 [2020-10-16 13:50:51,758 INFO L226 Difference]: Without dead ends: 37 [2020-10-16 13:50:51,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:50:51,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-16 13:50:51,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-16 13:50:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-16 13:50:51,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-16 13:50:51,762 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-10-16 13:50:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:51,763 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-16 13:50:51,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:50:51,763 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-16 13:50:51,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-16 13:50:51,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:50:51,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:50:51,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:50:51,768 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:50:51,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:50:51,768 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-10-16 13:50:51,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:50:51,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220183181] [2020-10-16 13:50:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:50:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:50:51,883 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 13:50:51,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220183181] [2020-10-16 13:50:51,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:50:51,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:50:51,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1386094823] [2020-10-16 13:50:51,884 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:50:51,887 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:50:51,892 INFO L258 McrAutomatonBuilder]: Finished intersection with 29 states and 38 transitions. [2020-10-16 13:50:51,892 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:50:51,936 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:50:51,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:50:51,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:50:51,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:50:51,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:50:51,938 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-10-16 13:50:51,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:50:51,965 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-10-16 13:50:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:50:51,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-16 13:50:51,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:50:51,966 INFO L225 Difference]: With dead ends: 36 [2020-10-16 13:50:51,966 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:50:51,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:50:51,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:50:51,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:50:51,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:50:51,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:50:51,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-16 13:50:51,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:50:51,968 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:50:51,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:50:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:50:51,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:50:51,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:50:51,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:50:51 BasicIcfg [2020-10-16 13:50:51,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:50:51,979 INFO L168 Benchmark]: Toolchain (without parser) took 4182.96 ms. Allocated memory was 141.0 MB in the beginning and 246.4 MB in the end (delta: 105.4 MB). Free memory was 102.2 MB in the beginning and 179.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:50:51,979 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-10-16 13:50:51,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.08 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 160.4 MB in the end (delta: -58.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:50:51,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.43 ms. Allocated memory is still 203.9 MB. Free memory was 160.4 MB in the beginning and 158.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 13:50:51,984 INFO L168 Benchmark]: Boogie Preprocessor took 28.38 ms. Allocated memory is still 203.9 MB. Free memory was 158.4 MB in the beginning and 156.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:50:51,985 INFO L168 Benchmark]: RCFGBuilder took 438.73 ms. Allocated memory is still 203.9 MB. Free memory was 156.5 MB in the beginning and 134.4 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:50:51,990 INFO L168 Benchmark]: TraceAbstraction took 2964.90 ms. Allocated memory was 203.9 MB in the beginning and 246.4 MB in the end (delta: 42.5 MB). Free memory was 133.8 MB in the beginning and 179.0 MB in the end (delta: -45.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:50:51,997 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.08 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 160.4 MB in the end (delta: -58.5 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.43 ms. Allocated memory is still 203.9 MB. Free memory was 160.4 MB in the beginning and 158.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.38 ms. Allocated memory is still 203.9 MB. Free memory was 158.4 MB in the beginning and 156.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.73 ms. Allocated memory is still 203.9 MB. Free memory was 156.5 MB in the beginning and 134.4 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2964.90 ms. Allocated memory was 203.9 MB in the beginning and 246.4 MB in the end (delta: 42.5 MB). Free memory was 133.8 MB in the beginning and 179.0 MB in the end (delta: -45.2 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 656 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2447 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 138 SDtfs, 82 SDslu, 227 SDs, 0 SdLazy, 64 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3491 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...