/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 21:47:03,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 21:47:03,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 21:47:03,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 21:47:03,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 21:47:03,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 21:47:03,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 21:47:03,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 21:47:03,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 21:47:03,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 21:47:03,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 21:47:03,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 21:47:03,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 21:47:03,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 21:47:03,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 21:47:03,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 21:47:03,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 21:47:03,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 21:47:03,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 21:47:03,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 21:47:03,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 21:47:03,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 21:47:03,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 21:47:03,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 21:47:03,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 21:47:03,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 21:47:03,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 21:47:03,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 21:47:03,458 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-NoLbe.epf [2022-02-10 21:47:03,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 21:47:03,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 21:47:03,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 21:47:03,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 21:47:03,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 21:47:03,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 21:47:03,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 21:47:03,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 21:47:03,484 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 21:47:03,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 21:47:03,484 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 21:47:03,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 21:47:03,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 21:47:03,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 21:47:03,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 21:47:03,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 21:47:03,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 21:47:03,485 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 21:47:03,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 21:47:03,485 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 21:47:03,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 21:47:03,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 21:47:03,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 21:47:03,486 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 21:47:03,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 21:47:03,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 21:47:03,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 21:47:03,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 21:47:03,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 21:47:03,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 21:47:03,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 21:47:03,487 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 21:47:03,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 21:47:03,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 21:47:03,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 21:47:03,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 21:47:03,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 21:47:03,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 21:47:03,695 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 21:47:03,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2022-02-10 21:47:03,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b675a61/fe2677b533764e2898204ff2b2fff8b8/FLAGb668c32a3 [2022-02-10 21:47:04,126 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 21:47:04,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2022-02-10 21:47:04,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b675a61/fe2677b533764e2898204ff2b2fff8b8/FLAGb668c32a3 [2022-02-10 21:47:04,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b675a61/fe2677b533764e2898204ff2b2fff8b8 [2022-02-10 21:47:04,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 21:47:04,150 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 21:47:04,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 21:47:04,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 21:47:04,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 21:47:04,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@506992b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04, skipping insertion in model container [2022-02-10 21:47:04,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 21:47:04,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 21:47:04,358 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i[945,958] [2022-02-10 21:47:04,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 21:47:04,457 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 21:47:04,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i[945,958] [2022-02-10 21:47:04,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 21:47:04,541 INFO L208 MainTranslator]: Completed translation [2022-02-10 21:47:04,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04 WrapperNode [2022-02-10 21:47:04,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 21:47:04,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 21:47:04,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 21:47:04,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 21:47:04,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,590 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2022-02-10 21:47:04,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 21:47:04,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 21:47:04,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 21:47:04,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 21:47:04,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 21:47:04,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 21:47:04,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 21:47:04,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 21:47:04,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (1/1) ... [2022-02-10 21:47:04,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 21:47:04,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 21:47:04,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 21:47:04,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 21:47:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 21:47:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 21:47:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 21:47:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 21:47:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 21:47:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-02-10 21:47:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-02-10 21:47:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-02-10 21:47:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-02-10 21:47:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-02-10 21:47:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-02-10 21:47:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 21:47:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 21:47:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 21:47:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 21:47:04,680 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 21:47:04,800 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 21:47:04,801 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 21:47:04,951 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 21:47:04,955 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 21:47:04,956 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 21:47:04,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 09:47:04 BoogieIcfgContainer [2022-02-10 21:47:04,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 21:47:04,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 21:47:04,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 21:47:04,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 21:47:04,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 09:47:04" (1/3) ... [2022-02-10 21:47:04,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7a226e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 09:47:04, skipping insertion in model container [2022-02-10 21:47:04,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 09:47:04" (2/3) ... [2022-02-10 21:47:04,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7a226e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 09:47:04, skipping insertion in model container [2022-02-10 21:47:04,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 09:47:04" (3/3) ... [2022-02-10 21:47:04,975 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2022-02-10 21:47:04,978 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 21:47:04,978 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 21:47:04,978 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 21:47:04,979 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 21:47:05,016 WARN L322 ript$VariableManager]: TermVariable |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,017 WARN L322 ript$VariableManager]: TermVariable |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,017 WARN L322 ript$VariableManager]: TermVariable P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,017 WARN L322 ript$VariableManager]: TermVariable P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,020 WARN L322 ript$VariableManager]: TermVariable |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,020 WARN L322 ript$VariableManager]: TermVariable |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,021 WARN L322 ript$VariableManager]: TermVariable P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,021 WARN L322 ript$VariableManager]: TermVariable P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,022 WARN L322 ript$VariableManager]: TermVariable |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,022 WARN L322 ript$VariableManager]: TermVariable |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,022 WARN L322 ript$VariableManager]: TermVariable |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,022 WARN L322 ript$VariableManager]: TermVariable |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,023 WARN L322 ript$VariableManager]: TermVariable |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,023 WARN L322 ript$VariableManager]: TermVariable |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,023 WARN L322 ript$VariableManager]: TermVariable P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,023 WARN L322 ript$VariableManager]: TermVariable P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,023 WARN L322 ript$VariableManager]: TermVariable |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,023 WARN L322 ript$VariableManager]: TermVariable |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,024 WARN L322 ript$VariableManager]: TermVariable P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,024 WARN L322 ript$VariableManager]: TermVariable P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,024 WARN L322 ript$VariableManager]: TermVariable |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,024 WARN L322 ript$VariableManager]: TermVariable |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,025 WARN L322 ript$VariableManager]: TermVariable |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,025 WARN L322 ript$VariableManager]: TermVariable |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,025 WARN L322 ript$VariableManager]: TermVariable |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,025 WARN L322 ript$VariableManager]: TermVariable |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,025 WARN L322 ript$VariableManager]: TermVariable P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,025 WARN L322 ript$VariableManager]: TermVariable P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,026 WARN L322 ript$VariableManager]: TermVariable |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,026 WARN L322 ript$VariableManager]: TermVariable |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,026 WARN L322 ript$VariableManager]: TermVariable P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,026 WARN L322 ript$VariableManager]: TermVariable P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,026 WARN L322 ript$VariableManager]: TermVariable |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,026 WARN L322 ript$VariableManager]: TermVariable |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,028 WARN L322 ript$VariableManager]: TermVariable |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,028 WARN L322 ript$VariableManager]: TermVariable |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,037 WARN L322 ript$VariableManager]: TermVariable P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,038 WARN L322 ript$VariableManager]: TermVariable P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,038 WARN L322 ript$VariableManager]: TermVariable |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,038 WARN L322 ript$VariableManager]: TermVariable |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,040 WARN L322 ript$VariableManager]: TermVariable P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,040 WARN L322 ript$VariableManager]: TermVariable |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,040 WARN L322 ript$VariableManager]: TermVariable P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,040 WARN L322 ript$VariableManager]: TermVariable |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,042 WARN L322 ript$VariableManager]: TermVariable P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,042 WARN L322 ript$VariableManager]: TermVariable |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,042 WARN L322 ript$VariableManager]: TermVariable |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,042 WARN L322 ript$VariableManager]: TermVariable P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 21:47:05,043 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-10 21:47:05,085 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 21:47:05,090 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 21:47:05,090 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-10 21:47:05,106 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 90 transitions, 195 flow [2022-02-10 21:47:05,340 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6589 states, 6588 states have (on average 3.5056162720097146) internal successors, (23095), 6588 states have internal predecessors, (23095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:05,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 6589 states, 6588 states have (on average 3.5056162720097146) internal successors, (23095), 6588 states have internal predecessors, (23095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:05,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-10 21:47:05,389 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:47:05,389 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:47:05,390 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 21:47:05,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:47:05,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1792320384, now seen corresponding path program 1 times [2022-02-10 21:47:05,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:47:05,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478990982] [2022-02-10 21:47:05,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:47:05,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:47:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:47:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:47:05,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:47:05,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478990982] [2022-02-10 21:47:05,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478990982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:47:05,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:47:05,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 21:47:05,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687952148] [2022-02-10 21:47:05,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:47:05,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 21:47:05,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:47:05,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 21:47:05,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 21:47:05,837 INFO L87 Difference]: Start difference. First operand has 6589 states, 6588 states have (on average 3.5056162720097146) internal successors, (23095), 6588 states have internal predecessors, (23095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:47:06,224 INFO L93 Difference]: Finished difference Result 10198 states and 35139 transitions. [2022-02-10 21:47:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 21:47:06,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-02-10 21:47:06,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:47:06,279 INFO L225 Difference]: With dead ends: 10198 [2022-02-10 21:47:06,279 INFO L226 Difference]: Without dead ends: 6300 [2022-02-10 21:47:06,281 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-10 21:47:06,284 INFO L934 BasicCegarLoop]: 126 mSDtfsCounter, 201 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 21:47:06,286 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 623 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 21:47:06,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6300 states. [2022-02-10 21:47:06,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6300 to 5656. [2022-02-10 21:47:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5656 states, 5655 states have (on average 3.297082228116711) internal successors, (18645), 5655 states have internal predecessors, (18645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:06,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 18645 transitions. [2022-02-10 21:47:06,569 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 18645 transitions. Word has length 53 [2022-02-10 21:47:06,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:47:06,570 INFO L470 AbstractCegarLoop]: Abstraction has 5656 states and 18645 transitions. [2022-02-10 21:47:06,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:06,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 18645 transitions. [2022-02-10 21:47:06,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-10 21:47:06,582 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:47:06,582 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:47:06,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 21:47:06,582 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 21:47:06,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:47:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash -503741729, now seen corresponding path program 1 times [2022-02-10 21:47:06,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:47:06,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031253432] [2022-02-10 21:47:06,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:47:06,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:47:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:47:06,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:47:06,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:47:06,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031253432] [2022-02-10 21:47:06,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031253432] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:47:06,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:47:06,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 21:47:06,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117957764] [2022-02-10 21:47:06,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:47:06,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 21:47:06,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:47:06,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 21:47:06,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 21:47:06,776 INFO L87 Difference]: Start difference. First operand 5656 states and 18645 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:06,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:47:06,995 INFO L93 Difference]: Finished difference Result 7543 states and 24947 transitions. [2022-02-10 21:47:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 21:47:06,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-02-10 21:47:06,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:47:07,067 INFO L225 Difference]: With dead ends: 7543 [2022-02-10 21:47:07,067 INFO L226 Difference]: Without dead ends: 6058 [2022-02-10 21:47:07,067 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-10 21:47:07,068 INFO L934 BasicCegarLoop]: 119 mSDtfsCounter, 172 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 21:47:07,068 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 613 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 21:47:07,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2022-02-10 21:47:07,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 5366. [2022-02-10 21:47:07,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 3.275116495806151) internal successors, (17571), 5365 states have internal predecessors, (17571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:07,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 17571 transitions. [2022-02-10 21:47:07,206 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 17571 transitions. Word has length 55 [2022-02-10 21:47:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:47:07,208 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 17571 transitions. [2022-02-10 21:47:07,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:07,208 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 17571 transitions. [2022-02-10 21:47:07,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-02-10 21:47:07,221 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:47:07,221 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:47:07,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 21:47:07,221 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 21:47:07,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:47:07,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1233843104, now seen corresponding path program 1 times [2022-02-10 21:47:07,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:47:07,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267858122] [2022-02-10 21:47:07,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:47:07,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:47:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:47:07,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:47:07,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:47:07,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267858122] [2022-02-10 21:47:07,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267858122] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:47:07,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:47:07,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 21:47:07,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955222307] [2022-02-10 21:47:07,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:47:07,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 21:47:07,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:47:07,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 21:47:07,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-10 21:47:07,339 INFO L87 Difference]: Start difference. First operand 5366 states and 17571 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:07,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:47:07,472 INFO L93 Difference]: Finished difference Result 6171 states and 20165 transitions. [2022-02-10 21:47:07,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 21:47:07,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-02-10 21:47:07,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:47:07,506 INFO L225 Difference]: With dead ends: 6171 [2022-02-10 21:47:07,507 INFO L226 Difference]: Without dead ends: 5296 [2022-02-10 21:47:07,507 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-10 21:47:07,511 INFO L934 BasicCegarLoop]: 107 mSDtfsCounter, 81 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:47:07,512 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 429 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:47:07,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5296 states. [2022-02-10 21:47:07,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5296 to 5188. [2022-02-10 21:47:07,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5188 states, 5187 states have (on average 3.2650857914015807) internal successors, (16936), 5187 states have internal predecessors, (16936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:07,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5188 states to 5188 states and 16936 transitions. [2022-02-10 21:47:07,648 INFO L78 Accepts]: Start accepts. Automaton has 5188 states and 16936 transitions. Word has length 57 [2022-02-10 21:47:07,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:47:07,649 INFO L470 AbstractCegarLoop]: Abstraction has 5188 states and 16936 transitions. [2022-02-10 21:47:07,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:07,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5188 states and 16936 transitions. [2022-02-10 21:47:07,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-02-10 21:47:07,660 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:47:07,660 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:47:07,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 21:47:07,661 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 21:47:07,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:47:07,662 INFO L85 PathProgramCache]: Analyzing trace with hash -777393522, now seen corresponding path program 1 times [2022-02-10 21:47:07,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:47:07,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246664988] [2022-02-10 21:47:07,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:47:07,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:47:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:47:07,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:47:07,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:47:07,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246664988] [2022-02-10 21:47:07,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246664988] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:47:07,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:47:07,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 21:47:07,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942713967] [2022-02-10 21:47:07,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:47:07,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 21:47:07,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:47:07,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 21:47:07,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-10 21:47:07,773 INFO L87 Difference]: Start difference. First operand 5188 states and 16936 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:07,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:47:07,930 INFO L93 Difference]: Finished difference Result 7548 states and 24254 transitions. [2022-02-10 21:47:07,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 21:47:07,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-02-10 21:47:07,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:47:07,947 INFO L225 Difference]: With dead ends: 7548 [2022-02-10 21:47:07,947 INFO L226 Difference]: Without dead ends: 5608 [2022-02-10 21:47:07,947 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-10 21:47:07,948 INFO L934 BasicCegarLoop]: 151 mSDtfsCounter, 91 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:47:07,948 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 602 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:47:07,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5608 states. [2022-02-10 21:47:08,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5608 to 4828. [2022-02-10 21:47:08,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4828 states, 4827 states have (on average 3.198466956701885) internal successors, (15439), 4827 states have internal predecessors, (15439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:08,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4828 states to 4828 states and 15439 transitions. [2022-02-10 21:47:08,064 INFO L78 Accepts]: Start accepts. Automaton has 4828 states and 15439 transitions. Word has length 58 [2022-02-10 21:47:08,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:47:08,065 INFO L470 AbstractCegarLoop]: Abstraction has 4828 states and 15439 transitions. [2022-02-10 21:47:08,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:08,065 INFO L276 IsEmpty]: Start isEmpty. Operand 4828 states and 15439 transitions. [2022-02-10 21:47:08,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-02-10 21:47:08,074 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:47:08,075 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:47:08,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 21:47:08,075 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 21:47:08,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:47:08,075 INFO L85 PathProgramCache]: Analyzing trace with hash 465842246, now seen corresponding path program 1 times [2022-02-10 21:47:08,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:47:08,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214830499] [2022-02-10 21:47:08,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:47:08,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:47:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:47:08,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:47:08,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:47:08,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214830499] [2022-02-10 21:47:08,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214830499] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:47:08,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:47:08,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 21:47:08,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903694185] [2022-02-10 21:47:08,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:47:08,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 21:47:08,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:47:08,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 21:47:08,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-10 21:47:08,134 INFO L87 Difference]: Start difference. First operand 4828 states and 15439 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:08,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:47:08,240 INFO L93 Difference]: Finished difference Result 7048 states and 22400 transitions. [2022-02-10 21:47:08,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 21:47:08,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-02-10 21:47:08,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:47:08,256 INFO L225 Difference]: With dead ends: 7048 [2022-02-10 21:47:08,257 INFO L226 Difference]: Without dead ends: 5248 [2022-02-10 21:47:08,257 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-10 21:47:08,259 INFO L934 BasicCegarLoop]: 144 mSDtfsCounter, 93 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:47:08,259 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 575 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:47:08,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2022-02-10 21:47:08,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 4440. [2022-02-10 21:47:08,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4440 states, 4439 states have (on average 3.1619734174363594) internal successors, (14036), 4439 states have internal predecessors, (14036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:08,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4440 states to 4440 states and 14036 transitions. [2022-02-10 21:47:08,447 INFO L78 Accepts]: Start accepts. Automaton has 4440 states and 14036 transitions. Word has length 58 [2022-02-10 21:47:08,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:47:08,447 INFO L470 AbstractCegarLoop]: Abstraction has 4440 states and 14036 transitions. [2022-02-10 21:47:08,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:08,447 INFO L276 IsEmpty]: Start isEmpty. Operand 4440 states and 14036 transitions. [2022-02-10 21:47:08,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-02-10 21:47:08,456 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:47:08,456 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:47:08,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 21:47:08,457 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 21:47:08,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:47:08,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1115305892, now seen corresponding path program 1 times [2022-02-10 21:47:08,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:47:08,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427089358] [2022-02-10 21:47:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:47:08,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:47:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:47:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:47:08,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:47:08,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427089358] [2022-02-10 21:47:08,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427089358] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:47:08,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:47:08,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 21:47:08,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857694672] [2022-02-10 21:47:08,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:47:08,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 21:47:08,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:47:08,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 21:47:08,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-10 21:47:08,517 INFO L87 Difference]: Start difference. First operand 4440 states and 14036 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:08,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:47:08,613 INFO L93 Difference]: Finished difference Result 6660 states and 20997 transitions. [2022-02-10 21:47:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 21:47:08,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-02-10 21:47:08,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:47:08,628 INFO L225 Difference]: With dead ends: 6660 [2022-02-10 21:47:08,628 INFO L226 Difference]: Without dead ends: 4860 [2022-02-10 21:47:08,628 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-10 21:47:08,629 INFO L934 BasicCegarLoop]: 126 mSDtfsCounter, 112 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:47:08,629 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 527 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:47:08,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4860 states. [2022-02-10 21:47:08,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4860 to 4080. [2022-02-10 21:47:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4080 states, 4079 states have (on average 3.128708016670753) internal successors, (12762), 4079 states have internal predecessors, (12762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:08,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4080 states to 4080 states and 12762 transitions. [2022-02-10 21:47:08,742 INFO L78 Accepts]: Start accepts. Automaton has 4080 states and 12762 transitions. Word has length 58 [2022-02-10 21:47:08,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:47:08,743 INFO L470 AbstractCegarLoop]: Abstraction has 4080 states and 12762 transitions. [2022-02-10 21:47:08,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:08,743 INFO L276 IsEmpty]: Start isEmpty. Operand 4080 states and 12762 transitions. [2022-02-10 21:47:08,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-10 21:47:08,752 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:47:08,752 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:47:08,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 21:47:08,752 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 21:47:08,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:47:08,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1173153121, now seen corresponding path program 1 times [2022-02-10 21:47:08,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:47:08,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616871913] [2022-02-10 21:47:08,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:47:08,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:47:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:47:08,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:47:08,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:47:08,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616871913] [2022-02-10 21:47:08,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616871913] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:47:08,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:47:08,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 21:47:08,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299449305] [2022-02-10 21:47:08,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:47:08,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 21:47:08,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:47:08,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 21:47:08,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-10 21:47:08,813 INFO L87 Difference]: Start difference. First operand 4080 states and 12762 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:08,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:47:08,901 INFO L93 Difference]: Finished difference Result 4978 states and 15287 transitions. [2022-02-10 21:47:08,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 21:47:08,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-02-10 21:47:08,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:47:08,912 INFO L225 Difference]: With dead ends: 4978 [2022-02-10 21:47:08,912 INFO L226 Difference]: Without dead ends: 3580 [2022-02-10 21:47:08,912 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-10 21:47:08,913 INFO L934 BasicCegarLoop]: 92 mSDtfsCounter, 141 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:47:08,913 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 350 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:47:08,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2022-02-10 21:47:08,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3580. [2022-02-10 21:47:09,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3580 states, 3579 states have (on average 3.0544844928751047) internal successors, (10932), 3579 states have internal predecessors, (10932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:09,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 10932 transitions. [2022-02-10 21:47:09,043 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 10932 transitions. Word has length 59 [2022-02-10 21:47:09,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:47:09,043 INFO L470 AbstractCegarLoop]: Abstraction has 3580 states and 10932 transitions. [2022-02-10 21:47:09,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:09,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 10932 transitions. [2022-02-10 21:47:09,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-10 21:47:09,050 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:47:09,050 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:47:09,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 21:47:09,050 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 21:47:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:47:09,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1396328798, now seen corresponding path program 1 times [2022-02-10 21:47:09,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:47:09,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319347352] [2022-02-10 21:47:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:47:09,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:47:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:47:09,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:47:09,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:47:09,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319347352] [2022-02-10 21:47:09,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319347352] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:47:09,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:47:09,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 21:47:09,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118693198] [2022-02-10 21:47:09,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:47:09,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 21:47:09,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:47:09,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 21:47:09,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 21:47:09,110 INFO L87 Difference]: Start difference. First operand 3580 states and 10932 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:09,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:47:09,195 INFO L93 Difference]: Finished difference Result 3463 states and 10269 transitions. [2022-02-10 21:47:09,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 21:47:09,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-02-10 21:47:09,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:47:09,202 INFO L225 Difference]: With dead ends: 3463 [2022-02-10 21:47:09,202 INFO L226 Difference]: Without dead ends: 2222 [2022-02-10 21:47:09,202 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-02-10 21:47:09,203 INFO L934 BasicCegarLoop]: 92 mSDtfsCounter, 208 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:47:09,203 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 399 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:47:09,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2022-02-10 21:47:09,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2222. [2022-02-10 21:47:09,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 2221 states have (on average 2.8892390814948223) internal successors, (6417), 2221 states have internal predecessors, (6417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:09,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 6417 transitions. [2022-02-10 21:47:09,242 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 6417 transitions. Word has length 61 [2022-02-10 21:47:09,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:47:09,242 INFO L470 AbstractCegarLoop]: Abstraction has 2222 states and 6417 transitions. [2022-02-10 21:47:09,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:09,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 6417 transitions. [2022-02-10 21:47:09,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-10 21:47:09,246 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 21:47:09,246 INFO L515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:47:09,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 21:47:09,247 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 21:47:09,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 21:47:09,247 INFO L85 PathProgramCache]: Analyzing trace with hash 798672065, now seen corresponding path program 1 times [2022-02-10 21:47:09,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 21:47:09,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657666553] [2022-02-10 21:47:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 21:47:09,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 21:47:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 21:47:09,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 21:47:09,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 21:47:09,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657666553] [2022-02-10 21:47:09,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657666553] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 21:47:09,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 21:47:09,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 21:47:09,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625257213] [2022-02-10 21:47:09,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 21:47:09,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 21:47:09,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 21:47:09,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 21:47:09,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-10 21:47:09,308 INFO L87 Difference]: Start difference. First operand 2222 states and 6417 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:09,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 21:47:09,369 INFO L93 Difference]: Finished difference Result 1493 states and 4158 transitions. [2022-02-10 21:47:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 21:47:09,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-02-10 21:47:09,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 21:47:09,370 INFO L225 Difference]: With dead ends: 1493 [2022-02-10 21:47:09,370 INFO L226 Difference]: Without dead ends: 0 [2022-02-10 21:47:09,370 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-02-10 21:47:09,371 INFO L934 BasicCegarLoop]: 77 mSDtfsCounter, 224 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 21:47:09,371 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 293 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 21:47:09,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-10 21:47:09,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-10 21:47:09,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:09,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-10 21:47:09,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2022-02-10 21:47:09,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 21:47:09,372 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-10 21:47:09,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 21:47:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-10 21:47:09,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-10 21:47:09,374 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-10 21:47:09,374 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-10 21:47:09,374 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-10 21:47:09,374 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-10 21:47:09,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 21:47:09,376 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 21:47:09,378 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 21:47:09,378 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 21:47:09,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 09:47:09 BasicIcfg [2022-02-10 21:47:09,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 21:47:09,380 INFO L158 Benchmark]: Toolchain (without parser) took 5229.57ms. Allocated memory was 178.3MB in the beginning and 1.0GB in the end (delta: 864.0MB). Free memory was 121.9MB in the beginning and 799.3MB in the end (delta: -677.5MB). Peak memory consumption was 187.2MB. Max. memory is 8.0GB. [2022-02-10 21:47:09,380 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 21:47:09,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.10ms. Allocated memory was 178.3MB in the beginning and 278.9MB in the end (delta: 100.7MB). Free memory was 121.7MB in the beginning and 241.5MB in the end (delta: -119.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-02-10 21:47:09,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.73ms. Allocated memory is still 278.9MB. Free memory was 241.5MB in the beginning and 239.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 21:47:09,381 INFO L158 Benchmark]: Boogie Preprocessor took 26.48ms. Allocated memory is still 278.9MB. Free memory was 239.4MB in the beginning and 238.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 21:47:09,381 INFO L158 Benchmark]: RCFGBuilder took 339.54ms. Allocated memory is still 278.9MB. Free memory was 238.3MB in the beginning and 225.2MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-10 21:47:09,381 INFO L158 Benchmark]: TraceAbstraction took 4421.21ms. Allocated memory was 278.9MB in the beginning and 1.0GB in the end (delta: 763.4MB). Free memory was 224.7MB in the beginning and 799.3MB in the end (delta: -574.6MB). Peak memory consumption was 189.3MB. Max. memory is 8.0GB. [2022-02-10 21:47:09,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 389.10ms. Allocated memory was 178.3MB in the beginning and 278.9MB in the end (delta: 100.7MB). Free memory was 121.7MB in the beginning and 241.5MB in the end (delta: -119.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.73ms. Allocated memory is still 278.9MB. Free memory was 241.5MB in the beginning and 239.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.48ms. Allocated memory is still 278.9MB. Free memory was 239.4MB in the beginning and 238.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 339.54ms. Allocated memory is still 278.9MB. Free memory was 238.3MB in the beginning and 225.2MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4421.21ms. Allocated memory was 278.9MB in the beginning and 1.0GB in the end (delta: 763.4MB). Free memory was 224.7MB in the beginning and 799.3MB in the end (delta: -574.6MB). Peak memory consumption was 189.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 113 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1323 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1323 mSDsluCounter, 4411 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3486 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 470 IncrementalHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 1034 mSDtfsCounter, 470 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6589occurred in iteration=0, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 3812 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 522 NumberOfCodeBlocks, 522 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 513 ConstructedInterpolants, 0 QuantifiedInterpolants, 1895 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-10 21:47:09,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...