/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread/stack_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 11:52:00,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 11:52:00,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 11:52:00,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 11:52:00,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 11:52:00,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 11:52:00,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 11:52:00,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 11:52:00,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 11:52:00,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 11:52:00,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 11:52:00,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 11:52:00,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 11:52:00,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 11:52:00,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 11:52:00,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 11:52:00,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 11:52:00,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 11:52:00,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 11:52:00,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 11:52:00,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 11:52:00,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 11:52:00,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 11:52:00,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 11:52:00,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 11:52:00,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 11:52:00,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 11:52:00,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 11:52:00,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 11:52:00,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 11:52:00,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 11:52:00,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 11:52:00,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 11:52:00,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 11:52:00,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 11:52:00,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 11:52:00,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 11:52:00,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 11:52:00,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 11:52:00,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 11:52:00,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 11:52:00,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf [2020-04-18 11:52:00,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 11:52:00,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 11:52:00,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 11:52:00,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 11:52:00,380 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 11:52:00,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 11:52:00,380 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 11:52:00,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 11:52:00,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 11:52:00,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 11:52:00,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 11:52:00,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 11:52:00,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 11:52:00,383 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 11:52:00,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 11:52:00,383 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 11:52:00,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 11:52:00,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 11:52:00,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 11:52:00,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 11:52:00,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 11:52:00,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:52:00,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 11:52:00,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 11:52:00,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 11:52:00,385 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 11:52:00,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 11:52:00,385 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 11:52:00,386 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 11:52:00,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 11:52:00,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 11:52:00,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 11:52:00,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 11:52:00,671 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 11:52:00,673 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 11:52:00,673 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 11:52:00,674 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2020-04-18 11:52:00,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce915f22a/88ef671b1cad49d6a97999a44d29abaa/FLAG00eaea812 [2020-04-18 11:52:01,364 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 11:52:01,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-1.i [2020-04-18 11:52:01,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce915f22a/88ef671b1cad49d6a97999a44d29abaa/FLAG00eaea812 [2020-04-18 11:52:01,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce915f22a/88ef671b1cad49d6a97999a44d29abaa [2020-04-18 11:52:01,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 11:52:01,662 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 11:52:01,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 11:52:01,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 11:52:01,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 11:52:01,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:52:01" (1/1) ... [2020-04-18 11:52:01,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db092f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:01, skipping insertion in model container [2020-04-18 11:52:01,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 11:52:01" (1/1) ... [2020-04-18 11:52:01,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 11:52:01,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 11:52:02,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:52:02,377 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 11:52:02,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 11:52:02,587 INFO L208 MainTranslator]: Completed translation [2020-04-18 11:52:02,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02 WrapperNode [2020-04-18 11:52:02,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 11:52:02,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 11:52:02,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 11:52:02,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 11:52:02,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (1/1) ... [2020-04-18 11:52:02,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (1/1) ... [2020-04-18 11:52:02,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 11:52:02,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 11:52:02,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 11:52:02,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 11:52:02,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (1/1) ... [2020-04-18 11:52:02,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (1/1) ... [2020-04-18 11:52:02,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (1/1) ... [2020-04-18 11:52:02,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (1/1) ... [2020-04-18 11:52:02,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (1/1) ... [2020-04-18 11:52:02,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (1/1) ... [2020-04-18 11:52:02,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (1/1) ... [2020-04-18 11:52:02,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 11:52:02,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 11:52:02,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 11:52:02,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 11:52:02,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 11:52:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-04-18 11:52:02,784 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-04-18 11:52:02,785 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-04-18 11:52:02,785 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-04-18 11:52:02,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 11:52:02,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 11:52:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 11:52:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 11:52:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 11:52:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 11:52:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 11:52:02,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 11:52:02,788 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 11:52:03,345 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 11:52:03,346 INFO L295 CfgBuilder]: Removed 26 assume(true) statements. [2020-04-18 11:52:03,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:52:03 BoogieIcfgContainer [2020-04-18 11:52:03,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 11:52:03,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 11:52:03,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 11:52:03,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 11:52:03,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 11:52:01" (1/3) ... [2020-04-18 11:52:03,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf3e61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:52:03, skipping insertion in model container [2020-04-18 11:52:03,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 11:52:02" (2/3) ... [2020-04-18 11:52:03,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf3e61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 11:52:03, skipping insertion in model container [2020-04-18 11:52:03,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 11:52:03" (3/3) ... [2020-04-18 11:52:03,362 INFO L109 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-04-18 11:52:03,374 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 11:52:03,374 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 11:52:03,383 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-18 11:52:03,385 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 11:52:03,458 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,458 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,458 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,458 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,459 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,459 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,459 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,459 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,460 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,460 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,460 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,460 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,461 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,461 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,461 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,461 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,461 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,462 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,462 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,462 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,462 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,462 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,463 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,463 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,463 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,463 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,463 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,464 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,464 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,464 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,464 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,464 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,465 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,465 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,465 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,465 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,465 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,466 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,466 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,466 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,466 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,467 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,467 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,467 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,467 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,467 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,468 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,468 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,468 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,468 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,469 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,469 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,469 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,469 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,469 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,470 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,470 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,470 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,470 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,471 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,471 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,471 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,471 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,471 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,472 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,472 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,472 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,472 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,473 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,474 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,474 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,474 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,474 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,474 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,475 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,475 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,475 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,475 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,476 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,476 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,476 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,476 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,477 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,477 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,477 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,477 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,477 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,478 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,478 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,478 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,478 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,478 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,478 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,479 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,479 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,479 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,479 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,480 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,480 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,480 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,480 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,480 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,481 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,481 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,481 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,481 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,482 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,482 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,482 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,482 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,482 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,483 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,483 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,483 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,483 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,484 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,484 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,484 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,484 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,484 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,485 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,485 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,485 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,485 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,485 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,486 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,486 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,486 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,486 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,486 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,486 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,487 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,487 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,490 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,491 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,491 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,491 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,491 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,492 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,492 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,492 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,492 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,492 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,493 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,493 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,493 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,493 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,493 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,494 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,494 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,494 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,494 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,494 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,495 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,495 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,495 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,501 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,502 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,502 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,502 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,502 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,503 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,503 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,503 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,503 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,503 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,504 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,504 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,504 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,504 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,505 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,506 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,506 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,507 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,507 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 11:52:03,524 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 11:52:03,542 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 11:52:03,542 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 11:52:03,542 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 11:52:03,542 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 11:52:03,543 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 11:52:03,543 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 11:52:03,543 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 11:52:03,543 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 11:52:03,559 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-04-18 11:52:03,561 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-04-18 11:52:03,638 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-04-18 11:52:03,638 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 11:52:03,647 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-04-18 11:52:03,654 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-04-18 11:52:03,691 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-04-18 11:52:03,691 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 11:52:03,693 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-04-18 11:52:03,699 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6532 [2020-04-18 11:52:03,700 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 11:52:06,273 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-04-18 11:52:06,899 WARN L192 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-04-18 11:52:07,121 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-04-18 11:52:07,137 INFO L206 etLargeBlockEncoding]: Checked pairs total: 7651 [2020-04-18 11:52:07,137 INFO L214 etLargeBlockEncoding]: Total number of compositions: 122 [2020-04-18 11:52:07,141 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-04-18 11:52:07,167 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360 states. [2020-04-18 11:52:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-04-18 11:52:07,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 11:52:07,176 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:07,177 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 11:52:07,177 INFO L427 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:07,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:07,184 INFO L82 PathProgramCache]: Analyzing trace with hash 475986746, now seen corresponding path program 1 times [2020-04-18 11:52:07,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:07,192 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [605974886] [2020-04-18 11:52:07,207 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:07,219 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 11:52:07,220 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 11:52:07,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 11:52:07,221 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:07,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:07,222 INFO L82 PathProgramCache]: Analyzing trace with hash 475986746, now seen corresponding path program 2 times [2020-04-18 11:52:07,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:07,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067516711] [2020-04-18 11:52:07,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:07,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:07,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067516711] [2020-04-18 11:52:07,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:07,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:52:07,475 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:07,476 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:07,479 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 11:52:07,480 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:07,494 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:52:07,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:07,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:07,501 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-04-18 11:52:07,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:07,512 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-04-18 11:52:07,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-04-18 11:52:07,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:07,513 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [605974886] [2020-04-18 11:52:07,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:07,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:52:07,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [605974886] [2020-04-18 11:52:07,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:52:07,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:07,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:07,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:07,522 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 3 states. [2020-04-18 11:52:07,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:07,646 INFO L93 Difference]: Finished difference Result 652 states and 1665 transitions. [2020-04-18 11:52:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:52:07,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-04-18 11:52:07,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:07,669 INFO L225 Difference]: With dead ends: 652 [2020-04-18 11:52:07,669 INFO L226 Difference]: Without dead ends: 630 [2020-04-18 11:52:07,671 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:07,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-04-18 11:52:07,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 462. [2020-04-18 11:52:07,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-04-18 11:52:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 1240 transitions. [2020-04-18 11:52:07,761 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 1240 transitions. Word has length 6 [2020-04-18 11:52:07,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:07,762 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 1240 transitions. [2020-04-18 11:52:07,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:52:07,762 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1240 transitions. [2020-04-18 11:52:07,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 11:52:07,764 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:07,764 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:07,764 INFO L427 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:07,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:07,765 INFO L82 PathProgramCache]: Analyzing trace with hash 929097400, now seen corresponding path program 1 times [2020-04-18 11:52:07,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:07,765 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [764570369] [2020-04-18 11:52:07,766 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:07,766 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 11:52:07,767 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 11:52:07,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 11:52:07,767 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:07,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:07,767 INFO L82 PathProgramCache]: Analyzing trace with hash 929097400, now seen corresponding path program 2 times [2020-04-18 11:52:07,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:07,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712367234] [2020-04-18 11:52:07,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:07,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712367234] [2020-04-18 11:52:07,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:07,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:52:07,878 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:07,878 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:07,881 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 11:52:07,881 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:07,887 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:52:07,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:07,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:07,887 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-04-18 11:52:07,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:07,888 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-04-18 11:52:07,888 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-04-18 11:52:07,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:07,889 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [764570369] [2020-04-18 11:52:07,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:07,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:52:07,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [764570369] [2020-04-18 11:52:07,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:52:07,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:07,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:07,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:07,891 INFO L87 Difference]: Start difference. First operand 462 states and 1240 transitions. Second operand 3 states. [2020-04-18 11:52:07,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:07,912 INFO L93 Difference]: Finished difference Result 561 states and 1452 transitions. [2020-04-18 11:52:07,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:52:07,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-18 11:52:07,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:07,921 INFO L225 Difference]: With dead ends: 561 [2020-04-18 11:52:07,921 INFO L226 Difference]: Without dead ends: 539 [2020-04-18 11:52:07,923 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:07,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-04-18 11:52:07,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 499. [2020-04-18 11:52:07,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-04-18 11:52:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1332 transitions. [2020-04-18 11:52:07,956 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1332 transitions. Word has length 9 [2020-04-18 11:52:07,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:07,957 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 1332 transitions. [2020-04-18 11:52:07,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:52:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1332 transitions. [2020-04-18 11:52:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 11:52:07,959 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:07,959 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:07,959 INFO L427 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:07,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:07,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1857688102, now seen corresponding path program 1 times [2020-04-18 11:52:07,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:07,960 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [182756508] [2020-04-18 11:52:07,960 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:07,961 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-04-18 11:52:07,961 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-04-18 11:52:07,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 11:52:07,962 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:07,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:07,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1857688102, now seen corresponding path program 2 times [2020-04-18 11:52:07,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:07,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724793884] [2020-04-18 11:52:07,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:08,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:08,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724793884] [2020-04-18 11:52:08,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:08,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 11:52:08,045 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:08,046 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:08,047 INFO L259 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-04-18 11:52:08,047 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:08,051 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:52:08,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:08,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:08,051 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2020-04-18 11:52:08,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:08,059 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-04-18 11:52:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-04-18 11:52:08,060 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:08,061 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [182756508] [2020-04-18 11:52:08,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:08,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 11:52:08,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [182756508] [2020-04-18 11:52:08,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 11:52:08,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:08,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 11:52:08,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 11:52:08,066 INFO L87 Difference]: Start difference. First operand 499 states and 1332 transitions. Second operand 3 states. [2020-04-18 11:52:08,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:08,088 INFO L93 Difference]: Finished difference Result 539 states and 1435 transitions. [2020-04-18 11:52:08,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 11:52:08,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-18 11:52:08,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:08,095 INFO L225 Difference]: With dead ends: 539 [2020-04-18 11:52:08,095 INFO L226 Difference]: Without dead ends: 539 [2020-04-18 11:52:08,096 INFO L678 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 [2020-04-18 11:52:08,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-04-18 11:52:08,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-04-18 11:52:08,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-04-18 11:52:08,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1435 transitions. [2020-04-18 11:52:08,128 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1435 transitions. Word has length 10 [2020-04-18 11:52:08,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:08,128 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 1435 transitions. [2020-04-18 11:52:08,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 11:52:08,128 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1435 transitions. [2020-04-18 11:52:08,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 11:52:08,136 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:08,136 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:08,136 INFO L427 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:08,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:08,136 INFO L82 PathProgramCache]: Analyzing trace with hash -2118228877, now seen corresponding path program 1 times [2020-04-18 11:52:08,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:08,137 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [911373903] [2020-04-18 11:52:08,137 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:08,138 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 11:52:08,138 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-04-18 11:52:08,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 11:52:08,139 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:08,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:08,139 INFO L82 PathProgramCache]: Analyzing trace with hash -2118228877, now seen corresponding path program 2 times [2020-04-18 11:52:08,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:08,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104274852] [2020-04-18 11:52:08,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:08,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104274852] [2020-04-18 11:52:08,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942782450] [2020-04-18 11:52:08,267 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 11:52:08,376 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 11:52:08,377 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 11:52:08,379 INFO L264 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2020-04-18 11:52:08,385 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 11:52:08,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:08,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 11:52:08,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-04-18 11:52:08,418 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:08,421 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:08,423 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 14 transitions. [2020-04-18 11:52:08,423 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:08,454 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:52:08,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 11:52:08,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-04-18 11:52:08,455 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 7 states. [2020-04-18 11:52:08,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:08,479 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-04-18 11:52:08,479 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-04-18 11:52:08,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:08,480 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [911373903] [2020-04-18 11:52:08,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:08,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 11:52:08,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [911373903] [2020-04-18 11:52:08,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 11:52:08,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:08,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 11:52:08,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 11:52:08,482 INFO L87 Difference]: Start difference. First operand 539 states and 1435 transitions. Second operand 7 states. [2020-04-18 11:52:08,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:08,610 INFO L93 Difference]: Finished difference Result 1015 states and 2609 transitions. [2020-04-18 11:52:08,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 11:52:08,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-04-18 11:52:08,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:08,617 INFO L225 Difference]: With dead ends: 1015 [2020-04-18 11:52:08,618 INFO L226 Difference]: Without dead ends: 1015 [2020-04-18 11:52:08,618 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 11:52:08,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-04-18 11:52:08,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 739. [2020-04-18 11:52:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-04-18 11:52:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1976 transitions. [2020-04-18 11:52:08,642 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1976 transitions. Word has length 14 [2020-04-18 11:52:08,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:08,643 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1976 transitions. [2020-04-18 11:52:08,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 11:52:08,643 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1976 transitions. [2020-04-18 11:52:08,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 11:52:08,644 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:08,644 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:08,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 11:52:08,850 INFO L427 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:08,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:08,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1012308327, now seen corresponding path program 1 times [2020-04-18 11:52:08,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:08,852 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1396744384] [2020-04-18 11:52:08,853 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:08,854 INFO L259 McrAutomatonBuilder]: Finished intersection with 74 states and 129 transitions. [2020-04-18 11:52:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-04-18 11:52:08,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-04-18 11:52:08,856 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:08,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:08,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1012308327, now seen corresponding path program 2 times [2020-04-18 11:52:08,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:08,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188844644] [2020-04-18 11:52:08,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:08,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:08,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188844644] [2020-04-18 11:52:08,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:08,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:52:08,940 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:08,942 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:08,948 INFO L259 McrAutomatonBuilder]: Finished intersection with 44 states and 69 transitions. [2020-04-18 11:52:08,949 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:08,976 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 11:52:08,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:52:08,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:52:08,977 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2020-04-18 11:52:09,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:09,018 INFO L93 Difference]: Finished difference Result 74 states and 129 transitions. [2020-04-18 11:52:09,018 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 129 transitions. [2020-04-18 11:52:09,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:09,019 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1396744384] [2020-04-18 11:52:09,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:09,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 11:52:09,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1396744384] [2020-04-18 11:52:09,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 11:52:09,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:09,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:52:09,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-18 11:52:09,021 INFO L87 Difference]: Start difference. First operand 739 states and 1976 transitions. Second operand 5 states. [2020-04-18 11:52:09,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:09,142 INFO L93 Difference]: Finished difference Result 454 states and 1032 transitions. [2020-04-18 11:52:09,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 11:52:09,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-04-18 11:52:09,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:09,146 INFO L225 Difference]: With dead ends: 454 [2020-04-18 11:52:09,146 INFO L226 Difference]: Without dead ends: 454 [2020-04-18 11:52:09,146 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 11:52:09,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-04-18 11:52:09,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 328. [2020-04-18 11:52:09,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-04-18 11:52:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 732 transitions. [2020-04-18 11:52:09,156 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 732 transitions. Word has length 17 [2020-04-18 11:52:09,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:09,157 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 732 transitions. [2020-04-18 11:52:09,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 11:52:09,157 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 732 transitions. [2020-04-18 11:52:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 11:52:09,158 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:09,158 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:09,158 INFO L427 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:09,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:09,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1241376286, now seen corresponding path program 1 times [2020-04-18 11:52:09,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:09,159 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [746503290] [2020-04-18 11:52:09,160 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:09,162 INFO L259 McrAutomatonBuilder]: Finished intersection with 82 states and 144 transitions. [2020-04-18 11:52:09,162 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2020-04-18 11:52:09,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 11:52:09,163 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:09,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:09,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1317005394, now seen corresponding path program 2 times [2020-04-18 11:52:09,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:09,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50136997] [2020-04-18 11:52:09,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:09,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:09,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50136997] [2020-04-18 11:52:09,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:09,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:52:09,211 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:09,214 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:09,222 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 76 transitions. [2020-04-18 11:52:09,222 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:09,254 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 11:52:09,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:52:09,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:52:09,255 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 5 states. [2020-04-18 11:52:09,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:09,301 INFO L93 Difference]: Finished difference Result 86 states and 147 transitions. [2020-04-18 11:52:09,301 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 147 transitions. [2020-04-18 11:52:09,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-04-18 11:52:09,302 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:52:09,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:09,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1241376286, now seen corresponding path program 3 times [2020-04-18 11:52:09,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:09,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754628784] [2020-04-18 11:52:09,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:09,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:09,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754628784] [2020-04-18 11:52:09,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:09,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:52:09,361 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:09,364 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:09,370 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 62 transitions. [2020-04-18 11:52:09,370 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:09,403 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:52:09,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:52:09,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-04-18 11:52:09,404 INFO L87 Difference]: Start difference. First operand 86 states and 147 transitions. Second operand 5 states. [2020-04-18 11:52:09,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:09,445 INFO L93 Difference]: Finished difference Result 92 states and 154 transitions. [2020-04-18 11:52:09,445 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 154 transitions. [2020-04-18 11:52:09,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:09,446 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [746503290] [2020-04-18 11:52:09,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:09,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 11:52:09,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [746503290] [2020-04-18 11:52:09,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 11:52:09,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:09,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 11:52:09,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-04-18 11:52:09,447 INFO L87 Difference]: Start difference. First operand 328 states and 732 transitions. Second operand 8 states. [2020-04-18 11:52:09,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:09,791 INFO L93 Difference]: Finished difference Result 543 states and 1196 transitions. [2020-04-18 11:52:09,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-04-18 11:52:09,792 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-04-18 11:52:09,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:09,796 INFO L225 Difference]: With dead ends: 543 [2020-04-18 11:52:09,797 INFO L226 Difference]: Without dead ends: 543 [2020-04-18 11:52:09,797 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2020-04-18 11:52:09,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-04-18 11:52:09,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 373. [2020-04-18 11:52:09,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-04-18 11:52:09,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 837 transitions. [2020-04-18 11:52:09,811 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 837 transitions. Word has length 18 [2020-04-18 11:52:09,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:09,812 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 837 transitions. [2020-04-18 11:52:09,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 11:52:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 837 transitions. [2020-04-18 11:52:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 11:52:09,813 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:09,813 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:09,813 INFO L427 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:09,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:09,814 INFO L82 PathProgramCache]: Analyzing trace with hash 624388862, now seen corresponding path program 1 times [2020-04-18 11:52:09,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:09,815 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [563945343] [2020-04-18 11:52:09,816 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:09,819 INFO L259 McrAutomatonBuilder]: Finished intersection with 122 states and 220 transitions. [2020-04-18 11:52:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2020-04-18 11:52:09,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 11:52:09,822 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:09,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:09,822 INFO L82 PathProgramCache]: Analyzing trace with hash 313107146, now seen corresponding path program 2 times [2020-04-18 11:52:09,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:09,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334906466] [2020-04-18 11:52:09,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:09,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:09,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334906466] [2020-04-18 11:52:09,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:09,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:52:09,911 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:09,913 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:09,946 INFO L259 McrAutomatonBuilder]: Finished intersection with 56 states and 88 transitions. [2020-04-18 11:52:09,946 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:09,976 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 11:52:09,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:52:09,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:52:09,976 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 5 states. [2020-04-18 11:52:10,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:10,026 INFO L93 Difference]: Finished difference Result 130 states and 227 transitions. [2020-04-18 11:52:10,026 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 227 transitions. [2020-04-18 11:52:10,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 11:52:10,027 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:52:10,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:10,027 INFO L82 PathProgramCache]: Analyzing trace with hash 624388862, now seen corresponding path program 3 times [2020-04-18 11:52:10,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:10,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011875610] [2020-04-18 11:52:10,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:10,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:10,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011875610] [2020-04-18 11:52:10,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:10,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-04-18 11:52:10,649 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:10,652 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:10,659 INFO L259 McrAutomatonBuilder]: Finished intersection with 45 states and 66 transitions. [2020-04-18 11:52:10,659 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:10,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2020-04-18 11:52:10,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 11:52:10,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 11:52:11,087 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 11:52:11,222 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 11:52:11,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 11:52:11,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2020-04-18 11:52:11,223 INFO L87 Difference]: Start difference. First operand 130 states and 227 transitions. Second operand 15 states. [2020-04-18 11:52:12,340 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-04-18 11:52:13,306 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-04-18 11:52:13,612 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-04-18 11:52:13,819 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-04-18 11:52:14,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:14,333 INFO L93 Difference]: Finished difference Result 217 states and 376 transitions. [2020-04-18 11:52:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 376 transitions. [2020-04-18 11:52:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 11:52:14,334 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 11:52:14,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:14,335 INFO L82 PathProgramCache]: Analyzing trace with hash -949094304, now seen corresponding path program 4 times [2020-04-18 11:52:14,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:14,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959912640] [2020-04-18 11:52:14,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:14,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959912640] [2020-04-18 11:52:14,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:14,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-04-18 11:52:14,801 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:14,803 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:14,808 INFO L259 McrAutomatonBuilder]: Finished intersection with 35 states and 46 transitions. [2020-04-18 11:52:14,808 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:14,977 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 11:52:14,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 11:52:14,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2020-04-18 11:52:14,978 INFO L87 Difference]: Start difference. First operand 217 states and 376 transitions. Second operand 12 states. [2020-04-18 11:52:15,799 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-04-18 11:52:16,126 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-04-18 11:52:16,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:16,188 INFO L93 Difference]: Finished difference Result 217 states and 376 transitions. [2020-04-18 11:52:16,188 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 376 transitions. [2020-04-18 11:52:16,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:16,189 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [563945343] [2020-04-18 11:52:16,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:16,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-04-18 11:52:16,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [563945343] [2020-04-18 11:52:16,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-04-18 11:52:16,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:16,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-04-18 11:52:16,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=1232, Unknown=0, NotChecked=0, Total=1640 [2020-04-18 11:52:16,191 INFO L87 Difference]: Start difference. First operand 373 states and 837 transitions. Second operand 19 states. [2020-04-18 11:52:16,515 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-04-18 11:52:17,485 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-04-18 11:52:17,789 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-04-18 11:52:18,192 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-04-18 11:52:18,437 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-04-18 11:52:18,806 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-04-18 11:52:19,299 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-04-18 11:52:19,591 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-04-18 11:52:19,833 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-04-18 11:52:20,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:20,136 INFO L93 Difference]: Finished difference Result 793 states and 1715 transitions. [2020-04-18 11:52:20,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-04-18 11:52:20,137 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2020-04-18 11:52:20,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:20,143 INFO L225 Difference]: With dead ends: 793 [2020-04-18 11:52:20,143 INFO L226 Difference]: Without dead ends: 793 [2020-04-18 11:52:20,144 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 72 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=750, Invalid=2672, Unknown=0, NotChecked=0, Total=3422 [2020-04-18 11:52:20,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-04-18 11:52:20,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 510. [2020-04-18 11:52:20,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2020-04-18 11:52:20,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 1176 transitions. [2020-04-18 11:52:20,165 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 1176 transitions. Word has length 22 [2020-04-18 11:52:20,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:20,165 INFO L479 AbstractCegarLoop]: Abstraction has 510 states and 1176 transitions. [2020-04-18 11:52:20,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-04-18 11:52:20,165 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 1176 transitions. [2020-04-18 11:52:20,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 11:52:20,166 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:20,167 INFO L425 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-04-18 11:52:20,167 INFO L427 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:20,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:20,167 INFO L82 PathProgramCache]: Analyzing trace with hash 752977068, now seen corresponding path program 3 times [2020-04-18 11:52:20,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:20,168 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1989568761] [2020-04-18 11:52:20,168 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:20,169 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-04-18 11:52:20,169 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-04-18 11:52:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 11:52:20,169 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:20,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:20,170 INFO L82 PathProgramCache]: Analyzing trace with hash 752977068, now seen corresponding path program 4 times [2020-04-18 11:52:20,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:20,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852978679] [2020-04-18 11:52:20,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:20,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852978679] [2020-04-18 11:52:20,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275097948] [2020-04-18 11:52:20,275 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 11:52:20,380 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-04-18 11:52:20,380 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 11:52:20,381 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2020-04-18 11:52:20,383 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 11:52:20,401 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:20,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 11:52:20,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-04-18 11:52:20,402 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:20,405 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:20,408 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-04-18 11:52:20,408 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:20,454 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 11:52:20,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 11:52:20,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-04-18 11:52:20,455 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 9 states. [2020-04-18 11:52:20,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:20,513 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-04-18 11:52:20,513 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-04-18 11:52:20,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:20,514 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1989568761] [2020-04-18 11:52:20,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:20,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 11:52:20,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1989568761] [2020-04-18 11:52:20,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 11:52:20,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:20,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 11:52:20,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 11:52:20,516 INFO L87 Difference]: Start difference. First operand 510 states and 1176 transitions. Second operand 9 states. [2020-04-18 11:52:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:20,598 INFO L93 Difference]: Finished difference Result 845 states and 1895 transitions. [2020-04-18 11:52:20,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 11:52:20,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-04-18 11:52:20,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:20,610 INFO L225 Difference]: With dead ends: 845 [2020-04-18 11:52:20,610 INFO L226 Difference]: Without dead ends: 845 [2020-04-18 11:52:20,610 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 11:52:20,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2020-04-18 11:52:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 602. [2020-04-18 11:52:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-04-18 11:52:20,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1380 transitions. [2020-04-18 11:52:20,628 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1380 transitions. Word has length 22 [2020-04-18 11:52:20,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:20,628 INFO L479 AbstractCegarLoop]: Abstraction has 602 states and 1380 transitions. [2020-04-18 11:52:20,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 11:52:20,629 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1380 transitions. [2020-04-18 11:52:20,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:52:20,630 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:20,630 INFO L425 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:20,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 11:52:20,834 INFO L427 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:20,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:20,835 INFO L82 PathProgramCache]: Analyzing trace with hash -333091595, now seen corresponding path program 1 times [2020-04-18 11:52:20,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:20,836 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [654493029] [2020-04-18 11:52:20,837 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:20,840 INFO L259 McrAutomatonBuilder]: Finished intersection with 158 states and 289 transitions. [2020-04-18 11:52:20,841 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2020-04-18 11:52:20,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:52:20,847 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:20,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:20,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1117373931, now seen corresponding path program 2 times [2020-04-18 11:52:20,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:20,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916771200] [2020-04-18 11:52:20,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:20,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-04-18 11:52:20,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916771200] [2020-04-18 11:52:20,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:20,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:52:20,892 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:20,895 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:20,908 INFO L259 McrAutomatonBuilder]: Finished intersection with 68 states and 109 transitions. [2020-04-18 11:52:20,908 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:20,933 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 11:52:20,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:52:20,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:52:20,934 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 5 states. [2020-04-18 11:52:21,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:21,002 INFO L93 Difference]: Finished difference Result 176 states and 313 transitions. [2020-04-18 11:52:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 313 transitions. [2020-04-18 11:52:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 11:52:21,003 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 11:52:21,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:21,004 INFO L82 PathProgramCache]: Analyzing trace with hash -333091595, now seen corresponding path program 3 times [2020-04-18 11:52:21,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:21,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802901942] [2020-04-18 11:52:21,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:21,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 11:52:21,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802901942] [2020-04-18 11:52:21,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068509235] [2020-04-18 11:52:21,100 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 11:52:21,251 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-04-18 11:52:21,251 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 11:52:21,252 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 7 conjunts are in the unsatisfiable core [2020-04-18 11:52:21,254 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 11:52:21,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-04-18 11:52:21,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:21,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2020-04-18 11:52:21,279 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:21,282 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:21,293 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 69 transitions. [2020-04-18 11:52:21,293 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:21,391 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times. [2020-04-18 11:52:21,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 11:52:21,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-04-18 11:52:21,392 INFO L87 Difference]: Start difference. First operand 176 states and 313 transitions. Second operand 9 states. [2020-04-18 11:52:21,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:21,536 INFO L93 Difference]: Finished difference Result 202 states and 359 transitions. [2020-04-18 11:52:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 359 transitions. [2020-04-18 11:52:21,536 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:21,537 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [654493029] [2020-04-18 11:52:21,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:21,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 11:52:21,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [654493029] [2020-04-18 11:52:21,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 11:52:21,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:21,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 11:52:21,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2020-04-18 11:52:21,538 INFO L87 Difference]: Start difference. First operand 602 states and 1380 transitions. Second operand 12 states. [2020-04-18 11:52:22,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:22,010 INFO L93 Difference]: Finished difference Result 928 states and 2052 transitions. [2020-04-18 11:52:22,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-04-18 11:52:22,010 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-04-18 11:52:22,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:22,015 INFO L225 Difference]: With dead ends: 928 [2020-04-18 11:52:22,015 INFO L226 Difference]: Without dead ends: 914 [2020-04-18 11:52:22,016 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2020-04-18 11:52:22,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2020-04-18 11:52:22,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 644. [2020-04-18 11:52:22,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-04-18 11:52:22,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1474 transitions. [2020-04-18 11:52:22,034 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1474 transitions. Word has length 25 [2020-04-18 11:52:22,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:22,036 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 1474 transitions. [2020-04-18 11:52:22,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 11:52:22,037 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1474 transitions. [2020-04-18 11:52:22,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-04-18 11:52:22,038 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 11:52:22,039 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 11:52:22,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 11:52:22,251 INFO L427 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 11:52:22,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:22,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1736562886, now seen corresponding path program 1 times [2020-04-18 11:52:22,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 11:52:22,253 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1171874029] [2020-04-18 11:52:22,254 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:22,256 INFO L259 McrAutomatonBuilder]: Finished intersection with 162 states and 296 transitions. [2020-04-18 11:52:22,257 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-04-18 11:52:22,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-04-18 11:52:22,258 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 11:52:22,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 11:52:22,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1892181754, now seen corresponding path program 2 times [2020-04-18 11:52:22,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 11:52:22,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782510545] [2020-04-18 11:52:22,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 11:52:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 11:52:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 11:52:22,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782510545] [2020-04-18 11:52:22,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 11:52:22,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 11:52:22,309 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 11:52:22,313 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 11:52:22,325 INFO L259 McrAutomatonBuilder]: Finished intersection with 59 states and 90 transitions. [2020-04-18 11:52:22,325 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 11:52:22,354 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 11:52:22,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:52:22,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 11:52:22,355 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 5 states. [2020-04-18 11:52:22,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:22,403 INFO L93 Difference]: Finished difference Result 164 states and 300 transitions. [2020-04-18 11:52:22,403 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 300 transitions. [2020-04-18 11:52:22,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:22,404 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1171874029] [2020-04-18 11:52:22,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 11:52:22,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 11:52:22,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1171874029] [2020-04-18 11:52:22,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 11:52:22,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 11:52:22,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 11:52:22,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-18 11:52:22,406 INFO L87 Difference]: Start difference. First operand 644 states and 1474 transitions. Second operand 5 states. [2020-04-18 11:52:22,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 11:52:22,434 INFO L93 Difference]: Finished difference Result 54 states and 103 transitions. [2020-04-18 11:52:22,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-18 11:52:22,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-04-18 11:52:22,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 11:52:22,435 INFO L225 Difference]: With dead ends: 54 [2020-04-18 11:52:22,435 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 11:52:22,436 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-18 11:52:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 11:52:22,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 11:52:22,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 11:52:22,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 11:52:22,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-04-18 11:52:22,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 11:52:22,437 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 11:52:22,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 11:52:22,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 11:52:22,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 11:52:22,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 11:52:22 BasicIcfg [2020-04-18 11:52:22,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 11:52:22,445 INFO L168 Benchmark]: Toolchain (without parser) took 20804.82 ms. Allocated memory was 139.5 MB in the beginning and 381.7 MB in the end (delta: 242.2 MB). Free memory was 101.1 MB in the beginning and 178.4 MB in the end (delta: -77.3 MB). Peak memory consumption was 164.9 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:22,445 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 11:52:22,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 924.96 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 99.2 MB in the beginning and 134.2 MB in the end (delta: -35.0 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:22,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.08 ms. Allocated memory is still 204.5 MB. Free memory was 134.2 MB in the beginning and 131.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:22,447 INFO L168 Benchmark]: Boogie Preprocessor took 37.75 ms. Allocated memory is still 204.5 MB. Free memory was 131.5 MB in the beginning and 129.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:22,450 INFO L168 Benchmark]: RCFGBuilder took 641.46 ms. Allocated memory is still 204.5 MB. Free memory was 129.5 MB in the beginning and 96.5 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:22,450 INFO L168 Benchmark]: TraceAbstraction took 19091.24 ms. Allocated memory was 204.5 MB in the beginning and 381.7 MB in the end (delta: 177.2 MB). Free memory was 95.8 MB in the beginning and 178.4 MB in the end (delta: -82.6 MB). Peak memory consumption was 94.6 MB. Max. memory is 7.1 GB. [2020-04-18 11:52:22,455 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 924.96 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 99.2 MB in the beginning and 134.2 MB in the end (delta: -35.0 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 82.08 ms. Allocated memory is still 204.5 MB. Free memory was 134.2 MB in the beginning and 131.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.75 ms. Allocated memory is still 204.5 MB. Free memory was 131.5 MB in the beginning and 129.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 641.46 ms. Allocated memory is still 204.5 MB. Free memory was 129.5 MB in the beginning and 96.5 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19091.24 ms. Allocated memory was 204.5 MB in the beginning and 381.7 MB in the end (delta: 177.2 MB). Free memory was 95.8 MB in the beginning and 178.4 MB in the end (delta: -82.6 MB). Peak memory consumption was 94.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.5s, 140 ProgramPointsBefore, 41 ProgramPointsAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 3568 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 7651 CheckedPairsTotal, 122 TotalNumberOfCompositions - PositiveResult [Line: 922]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 922]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.8s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 543 SDtfs, 1133 SDslu, 1921 SDs, 0 SdLazy, 1120 SolverSat, 139 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 456 GetRequests, 318 SyntacticMatches, 6 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1230 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=739occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1576 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...