/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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 12:16:51,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 12:16:51,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 12:16:51,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-28 12:16:51,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 12:16:51,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 12:16:51,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 12:16:51,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 12:16:51,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 12:16:51,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 12:16:51,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 12:16:51,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 12:16:51,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 12:16:51,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 12:16:51,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 12:16:51,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 12:16:51,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-28 12:16:51,186 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 [2022-01-28 12:16:51,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 12:16:51,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 12:16:51,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 12:16:51,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 12:16:51,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 12:16:51,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 12:16:51,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 12:16:51,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 12:16:51,206 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 12:16:51,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 12:16:51,206 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 12:16:51,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 12:16:51,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 12:16:51,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 12:16:51,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 12:16:51,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 12:16:51,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 12:16:51,207 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 12:16:51,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 12:16:51,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 12:16:51,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 12:16:51,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 12:16:51,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 12:16:51,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 12:16:51,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 12:16:51,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 12:16:51,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 12:16:51,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 12:16:51,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 12:16:51,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 12:16:51,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 12:16:51,208 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 12:16:51,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 12:16:51,208 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 12:16:51,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 12:16:51,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 12:16:51,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 12:16:51,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 12:16:51,413 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 12:16:51,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-28 12:16:51,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f2ed951/6ff2cca97c9440b7b78676e653bc84b3/FLAGce4695426 [2022-01-28 12:16:51,844 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 12:16:51,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-28 12:16:51,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f2ed951/6ff2cca97c9440b7b78676e653bc84b3/FLAGce4695426 [2022-01-28 12:16:52,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f2ed951/6ff2cca97c9440b7b78676e653bc84b3 [2022-01-28 12:16:52,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 12:16:52,218 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 12:16:52,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 12:16:52,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 12:16:52,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 12:16:52,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63764c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52, skipping insertion in model container [2022-01-28 12:16:52,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 12:16:52,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 12:16:52,407 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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-01-28 12:16:52,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 12:16:52,543 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 12:16:52,552 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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-01-28 12:16:52,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 12:16:52,597 INFO L208 MainTranslator]: Completed translation [2022-01-28 12:16:52,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52 WrapperNode [2022-01-28 12:16:52,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 12:16:52,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 12:16:52,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 12:16:52,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 12:16:52,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,634 INFO L137 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-01-28 12:16:52,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 12:16:52,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 12:16:52,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 12:16:52,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 12:16:52,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 12:16:52,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 12:16:52,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 12:16:52,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 12:16:52,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (1/1) ... [2022-01-28 12:16:52,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 12:16:52,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 12:16:52,715 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) [2022-01-28 12:16:52,721 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 [2022-01-28 12:16:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 12:16:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-28 12:16:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-28 12:16:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 12:16:52,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 12:16:52,748 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-28 12:16:52,748 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-28 12:16:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-28 12:16:52,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-28 12:16:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-28 12:16:52,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-28 12:16:52,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-28 12:16:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-28 12:16:52,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 12:16:52,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 12:16:52,765 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 12:16:52,914 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 12:16:52,915 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 12:16:53,157 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 12:16:53,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 12:16:53,162 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-28 12:16:53,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:16:53 BoogieIcfgContainer [2022-01-28 12:16:53,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 12:16:53,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 12:16:53,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 12:16:53,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 12:16:53,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:16:52" (1/3) ... [2022-01-28 12:16:53,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601b8e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:16:53, skipping insertion in model container [2022-01-28 12:16:53,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:16:52" (2/3) ... [2022-01-28 12:16:53,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601b8e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:16:53, skipping insertion in model container [2022-01-28 12:16:53,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:16:53" (3/3) ... [2022-01-28 12:16:53,184 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-28 12:16:53,188 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 12:16:53,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 12:16:53,188 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 12:16:53,190 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 12:16:53,271 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,272 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,272 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,272 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,276 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,277 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,277 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,277 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,278 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,278 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,278 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,279 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,279 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,280 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,280 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,280 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,280 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,280 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,280 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,280 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,281 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,281 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,281 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,282 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,282 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,282 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,283 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,283 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,283 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,284 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,284 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,284 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,285 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,285 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,286 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,286 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,294 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,295 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,295 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,295 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,298 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,298 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,298 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,298 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,299 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,299 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,299 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,299 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 12:16:53,299 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-28 12:16:53,352 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 12:16:53,381 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 [2022-01-28 12:16:53,381 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-28 12:16:53,403 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 90 transitions, 195 flow [2022-01-28 12:16:53,742 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5708 states, 5707 states have (on average 3.4729279831785527) internal successors, (19820), 5707 states have internal predecessors, (19820), 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) [2022-01-28 12:16:53,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 5708 states, 5707 states have (on average 3.4729279831785527) internal successors, (19820), 5707 states have internal predecessors, (19820), 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) [2022-01-28 12:16:53,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-28 12:16:53,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:53,784 INFO L514 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] [2022-01-28 12:16:53,785 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:53,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:53,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1346493370, now seen corresponding path program 1 times [2022-01-28 12:16:53,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:53,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379646072] [2022-01-28 12:16:53,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:53,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:54,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:54,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379646072] [2022-01-28 12:16:54,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379646072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:54,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:54,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:16:54,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920743228] [2022-01-28 12:16:54,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:54,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:16:54,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:54,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:16:54,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:16:54,243 INFO L87 Difference]: Start difference. First operand has 5708 states, 5707 states have (on average 3.4729279831785527) internal successors, (19820), 5707 states have internal predecessors, (19820), 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 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2022-01-28 12:16:54,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:54,627 INFO L93 Difference]: Finished difference Result 10226 states and 34328 transitions. [2022-01-28 12:16:54,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 12:16:54,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2022-01-28 12:16:54,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:54,682 INFO L225 Difference]: With dead ends: 10226 [2022-01-28 12:16:54,682 INFO L226 Difference]: Without dead ends: 6750 [2022-01-28 12:16:54,684 INFO L932 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 [2022-01-28 12:16:54,687 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 197 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:54,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 529 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 12:16:54,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6750 states. [2022-01-28 12:16:54,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6750 to 5686. [2022-01-28 12:16:54,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5686 states, 5685 states have (on average 3.3284080914687775) internal successors, (18922), 5685 states have internal predecessors, (18922), 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) [2022-01-28 12:16:54,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5686 states to 5686 states and 18922 transitions. [2022-01-28 12:16:54,933 INFO L78 Accepts]: Start accepts. Automaton has 5686 states and 18922 transitions. Word has length 54 [2022-01-28 12:16:54,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:54,934 INFO L470 AbstractCegarLoop]: Abstraction has 5686 states and 18922 transitions. [2022-01-28 12:16:54,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2022-01-28 12:16:54,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5686 states and 18922 transitions. [2022-01-28 12:16:54,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-28 12:16:54,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:54,978 INFO L514 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] [2022-01-28 12:16:54,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 12:16:54,979 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:54,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:54,980 INFO L85 PathProgramCache]: Analyzing trace with hash -512826777, now seen corresponding path program 1 times [2022-01-28 12:16:54,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:54,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616106277] [2022-01-28 12:16:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:54,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:55,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:55,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616106277] [2022-01-28 12:16:55,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616106277] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:55,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:55,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:16:55,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959566093] [2022-01-28 12:16:55,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:55,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:16:55,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:55,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:16:55,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:16:55,154 INFO L87 Difference]: Start difference. First operand 5686 states and 18922 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2022-01-28 12:16:55,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:55,340 INFO L93 Difference]: Finished difference Result 7756 states and 25543 transitions. [2022-01-28 12:16:55,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-28 12:16:55,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56 [2022-01-28 12:16:55,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:55,370 INFO L225 Difference]: With dead ends: 7756 [2022-01-28 12:16:55,370 INFO L226 Difference]: Without dead ends: 6106 [2022-01-28 12:16:55,374 INFO L932 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 [2022-01-28 12:16:55,375 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 152 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:55,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 642 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:55,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6106 states. [2022-01-28 12:16:55,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6106 to 4946. [2022-01-28 12:16:55,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4946 states, 4945 states have (on average 3.3011122345803843) internal successors, (16324), 4945 states have internal predecessors, (16324), 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) [2022-01-28 12:16:55,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4946 states to 4946 states and 16324 transitions. [2022-01-28 12:16:55,557 INFO L78 Accepts]: Start accepts. Automaton has 4946 states and 16324 transitions. Word has length 56 [2022-01-28 12:16:55,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:55,558 INFO L470 AbstractCegarLoop]: Abstraction has 4946 states and 16324 transitions. [2022-01-28 12:16:55,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2022-01-28 12:16:55,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4946 states and 16324 transitions. [2022-01-28 12:16:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-28 12:16:55,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:55,570 INFO L514 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] [2022-01-28 12:16:55,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 12:16:55,570 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:55,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:55,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1124683800, now seen corresponding path program 1 times [2022-01-28 12:16:55,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:55,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176066025] [2022-01-28 12:16:55,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:55,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:55,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:55,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176066025] [2022-01-28 12:16:55,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176066025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:55,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:55,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 12:16:55,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440598736] [2022-01-28 12:16:55,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:55,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 12:16:55,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:55,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 12:16:55,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-28 12:16:55,706 INFO L87 Difference]: Start difference. First operand 4946 states and 16324 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) [2022-01-28 12:16:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:55,810 INFO L93 Difference]: Finished difference Result 5626 states and 18493 transitions. [2022-01-28 12:16:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 12:16:55,810 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 [2022-01-28 12:16:55,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:55,841 INFO L225 Difference]: With dead ends: 5626 [2022-01-28 12:16:55,841 INFO L226 Difference]: Without dead ends: 4876 [2022-01-28 12:16:55,842 INFO L932 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 [2022-01-28 12:16:55,846 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 78 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 412 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 [2022-01-28 12:16:55,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 412 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:55,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4876 states. [2022-01-28 12:16:55,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4876 to 4876. [2022-01-28 12:16:55,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 4875 states have (on average 3.293948717948718) internal successors, (16058), 4875 states have internal predecessors, (16058), 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) [2022-01-28 12:16:55,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 16058 transitions. [2022-01-28 12:16:55,981 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 16058 transitions. Word has length 58 [2022-01-28 12:16:55,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:55,981 INFO L470 AbstractCegarLoop]: Abstraction has 4876 states and 16058 transitions. [2022-01-28 12:16:55,981 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) [2022-01-28 12:16:55,982 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 16058 transitions. [2022-01-28 12:16:55,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-28 12:16:55,992 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:55,993 INFO L514 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] [2022-01-28 12:16:55,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 12:16:55,993 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:55,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:55,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1166023210, now seen corresponding path program 1 times [2022-01-28 12:16:55,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:55,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174890396] [2022-01-28 12:16:55,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:55,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:56,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:56,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174890396] [2022-01-28 12:16:56,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174890396] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:56,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:56,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 12:16:56,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954622536] [2022-01-28 12:16:56,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:56,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 12:16:56,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 12:16:56,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-28 12:16:56,139 INFO L87 Difference]: Start difference. First operand 4876 states and 16058 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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) [2022-01-28 12:16:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:56,296 INFO L93 Difference]: Finished difference Result 6944 states and 22481 transitions. [2022-01-28 12:16:56,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-28 12:16:56,297 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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 [2022-01-28 12:16:56,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:56,309 INFO L225 Difference]: With dead ends: 6944 [2022-01-28 12:16:56,312 INFO L226 Difference]: Without dead ends: 3359 [2022-01-28 12:16:56,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-28 12:16:56,315 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 279 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:56,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 509 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:56,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2022-01-28 12:16:56,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 2911. [2022-01-28 12:16:56,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2910 states have (on average 3.1597938144329896) internal successors, (9195), 2910 states have internal predecessors, (9195), 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) [2022-01-28 12:16:56,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 9195 transitions. [2022-01-28 12:16:56,380 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 9195 transitions. Word has length 59 [2022-01-28 12:16:56,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:56,380 INFO L470 AbstractCegarLoop]: Abstraction has 2911 states and 9195 transitions. [2022-01-28 12:16:56,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 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) [2022-01-28 12:16:56,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 9195 transitions. [2022-01-28 12:16:56,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-28 12:16:56,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:56,386 INFO L514 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] [2022-01-28 12:16:56,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-28 12:16:56,386 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:56,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash -719773487, now seen corresponding path program 1 times [2022-01-28 12:16:56,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:56,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23880268] [2022-01-28 12:16:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:56,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:56,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:56,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:56,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23880268] [2022-01-28 12:16:56,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23880268] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:56,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:56,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 12:16:56,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566200093] [2022-01-28 12:16:56,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:56,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 12:16:56,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:56,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 12:16:56,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-28 12:16:56,476 INFO L87 Difference]: Start difference. First operand 2911 states and 9195 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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) [2022-01-28 12:16:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:56,553 INFO L93 Difference]: Finished difference Result 3871 states and 12175 transitions. [2022-01-28 12:16:56,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-28 12:16:56,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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 [2022-01-28 12:16:56,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:56,557 INFO L225 Difference]: With dead ends: 3871 [2022-01-28 12:16:56,557 INFO L226 Difference]: Without dead ends: 1426 [2022-01-28 12:16:56,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-01-28 12:16:56,558 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 159 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:56,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 471 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:56,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-01-28 12:16:56,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2022-01-28 12:16:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 3.049122807017544) internal successors, (4345), 1425 states have internal predecessors, (4345), 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) [2022-01-28 12:16:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 4345 transitions. [2022-01-28 12:16:56,582 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 4345 transitions. Word has length 61 [2022-01-28 12:16:56,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:56,582 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 4345 transitions. [2022-01-28 12:16:56,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 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) [2022-01-28 12:16:56,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 4345 transitions. [2022-01-28 12:16:56,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-28 12:16:56,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:56,584 INFO L514 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] [2022-01-28 12:16:56,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 12:16:56,584 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:56,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:56,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1200373749, now seen corresponding path program 2 times [2022-01-28 12:16:56,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:56,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405134740] [2022-01-28 12:16:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:56,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:56,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:56,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405134740] [2022-01-28 12:16:56,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405134740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:56,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:56,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 12:16:56,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514104965] [2022-01-28 12:16:56,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:56,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 12:16:56,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:56,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 12:16:56,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-28 12:16:56,640 INFO L87 Difference]: Start difference. First operand 1426 states and 4345 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 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) [2022-01-28 12:16:56,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:56,699 INFO L93 Difference]: Finished difference Result 1672 states and 5031 transitions. [2022-01-28 12:16:56,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 12:16:56,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 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 [2022-01-28 12:16:56,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:56,703 INFO L225 Difference]: With dead ends: 1672 [2022-01-28 12:16:56,703 INFO L226 Difference]: Without dead ends: 1272 [2022-01-28 12:16:56,703 INFO L932 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 [2022-01-28 12:16:56,704 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 96 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:56,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 313 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:56,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-01-28 12:16:56,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2022-01-28 12:16:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1271 states have (on average 3.008654602675059) internal successors, (3824), 1271 states have internal predecessors, (3824), 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) [2022-01-28 12:16:56,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 3824 transitions. [2022-01-28 12:16:56,726 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 3824 transitions. Word has length 61 [2022-01-28 12:16:56,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:56,728 INFO L470 AbstractCegarLoop]: Abstraction has 1272 states and 3824 transitions. [2022-01-28 12:16:56,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 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) [2022-01-28 12:16:56,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 3824 transitions. [2022-01-28 12:16:56,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-28 12:16:56,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:56,730 INFO L514 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] [2022-01-28 12:16:56,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-28 12:16:56,730 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:56,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:56,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1297852567, now seen corresponding path program 1 times [2022-01-28 12:16:56,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:56,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114662826] [2022-01-28 12:16:56,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:56,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:56,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:56,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114662826] [2022-01-28 12:16:56,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114662826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:56,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:56,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 12:16:56,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746479171] [2022-01-28 12:16:56,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:56,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 12:16:56,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:56,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 12:16:56,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-28 12:16:56,824 INFO L87 Difference]: Start difference. First operand 1272 states and 3824 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2022-01-28 12:16:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:56,901 INFO L93 Difference]: Finished difference Result 1125 states and 3264 transitions. [2022-01-28 12:16:56,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 12:16:56,901 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2022-01-28 12:16:56,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:56,903 INFO L225 Difference]: With dead ends: 1125 [2022-01-28 12:16:56,903 INFO L226 Difference]: Without dead ends: 810 [2022-01-28 12:16:56,904 INFO L932 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 [2022-01-28 12:16:56,905 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 140 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:56,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 344 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:56,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-01-28 12:16:56,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 810. [2022-01-28 12:16:56,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 809 states have (on average 2.8442521631644007) internal successors, (2301), 809 states have internal predecessors, (2301), 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) [2022-01-28 12:16:56,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 2301 transitions. [2022-01-28 12:16:56,919 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 2301 transitions. Word has length 62 [2022-01-28 12:16:56,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:56,919 INFO L470 AbstractCegarLoop]: Abstraction has 810 states and 2301 transitions. [2022-01-28 12:16:56,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2022-01-28 12:16:56,919 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 2301 transitions. [2022-01-28 12:16:56,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-28 12:16:56,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 12:16:56,920 INFO L514 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] [2022-01-28 12:16:56,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-28 12:16:56,920 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-28 12:16:56,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 12:16:56,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1228120058, now seen corresponding path program 1 times [2022-01-28 12:16:56,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 12:16:56,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878931210] [2022-01-28 12:16:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 12:16:56,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 12:16:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 12:16:56,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 12:16:56,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 12:16:56,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878931210] [2022-01-28 12:16:56,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878931210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 12:16:56,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 12:16:56,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-28 12:16:56,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308759971] [2022-01-28 12:16:56,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 12:16:56,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-28 12:16:56,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 12:16:56,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-28 12:16:56,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-28 12:16:56,994 INFO L87 Difference]: Start difference. First operand 810 states and 2301 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) [2022-01-28 12:16:57,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 12:16:57,040 INFO L93 Difference]: Finished difference Result 441 states and 1188 transitions. [2022-01-28 12:16:57,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-28 12:16:57,041 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 [2022-01-28 12:16:57,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 12:16:57,041 INFO L225 Difference]: With dead ends: 441 [2022-01-28 12:16:57,041 INFO L226 Difference]: Without dead ends: 0 [2022-01-28 12:16:57,041 INFO L932 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 [2022-01-28 12:16:57,042 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 168 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 12:16:57,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 240 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 12:16:57,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-28 12:16:57,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-28 12:16:57,042 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) [2022-01-28 12:16:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-28 12:16:57,042 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2022-01-28 12:16:57,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 12:16:57,042 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-28 12:16:57,043 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) [2022-01-28 12:16:57,043 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-28 12:16:57,043 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-28 12:16:57,045 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-28 12:16:57,045 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-28 12:16:57,045 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-28 12:16:57,045 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-28 12:16:57,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-28 12:16:57,047 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-01-28 12:16:57,048 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-28 12:16:57,049 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 12:16:57,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:16:57 BasicIcfg [2022-01-28 12:16:57,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 12:16:57,051 INFO L158 Benchmark]: Toolchain (without parser) took 4832.33ms. Allocated memory was 188.7MB in the beginning and 456.1MB in the end (delta: 267.4MB). Free memory was 130.7MB in the beginning and 157.6MB in the end (delta: -26.9MB). Peak memory consumption was 242.0MB. Max. memory is 8.0GB. [2022-01-28 12:16:57,051 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 12:16:57,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.82ms. Allocated memory was 188.7MB in the beginning and 248.5MB in the end (delta: 59.8MB). Free memory was 130.4MB in the beginning and 210.7MB in the end (delta: -80.3MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. [2022-01-28 12:16:57,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.49ms. Allocated memory is still 248.5MB. Free memory was 210.7MB in the beginning and 209.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-28 12:16:57,051 INFO L158 Benchmark]: Boogie Preprocessor took 13.89ms. Allocated memory is still 248.5MB. Free memory was 209.1MB in the beginning and 207.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 12:16:57,051 INFO L158 Benchmark]: RCFGBuilder took 514.72ms. Allocated memory is still 248.5MB. Free memory was 207.6MB in the beginning and 195.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-28 12:16:57,052 INFO L158 Benchmark]: TraceAbstraction took 3885.54ms. Allocated memory was 248.5MB in the beginning and 456.1MB in the end (delta: 207.6MB). Free memory was 194.5MB in the beginning and 157.6MB in the end (delta: 36.9MB). Peak memory consumption was 245.5MB. Max. memory is 8.0GB. [2022-01-28 12:16:57,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 377.82ms. Allocated memory was 188.7MB in the beginning and 248.5MB in the end (delta: 59.8MB). Free memory was 130.4MB in the beginning and 210.7MB in the end (delta: -80.3MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.49ms. Allocated memory is still 248.5MB. Free memory was 210.7MB in the beginning and 209.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.89ms. Allocated memory is still 248.5MB. Free memory was 209.1MB in the beginning and 207.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 514.72ms. Allocated memory is still 248.5MB. Free memory was 207.6MB in the beginning and 195.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3885.54ms. Allocated memory was 248.5MB in the beginning and 456.1MB in the end (delta: 207.6MB). Free memory was 194.5MB in the beginning and 157.6MB in the end (delta: 36.9MB). Peak memory consumption was 245.5MB. 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, 112 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1269 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1269 mSDsluCounter, 3460 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2757 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 393 IncrementalHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 779 mSDtfsCounter, 393 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5708occurred in iteration=0, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 2672 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 474 NumberOfCodeBlocks, 474 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 466 ConstructedInterpolants, 0 QuantifiedInterpolants, 2088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2022-01-28 12:16:57,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...