/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-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 01:44:21,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 01:44:21,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 01:44:21,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 01:44:21,260 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-MCRwithDepranks-BasicCegarLoop.epf [2022-02-10 01:44:21,276 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 01:44:21,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 01:44:21,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 01:44:21,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 01:44:21,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 01:44:21,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 01:44:21,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 01:44:21,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 01:44:21,279 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 01:44:21,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 01:44:21,279 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 01:44:21,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 01:44:21,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 01:44:21,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 01:44:21,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 01:44:21,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 01:44:21,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 01:44:21,280 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 01:44:21,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 01:44:21,280 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 01:44:21,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 01:44:21,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 01:44:21,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 01:44:21,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 01:44:21,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 01:44:21,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 01:44:21,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 01:44:21,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 01:44:21,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 01:44:21,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 01:44:21,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 01:44:21,282 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 01:44:21,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 01:44:21,282 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-10 01:44:21,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 01:44:21,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 01:44:21,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 01:44:21,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 01:44:21,527 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 01:44:21,528 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 01:44:21,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-10 01:44:21,585 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93bb481b1/30c6a93d25e84a0bb1fd43a1d03e6d44/FLAGf4d88a011 [2022-02-10 01:44:21,983 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 01:44:21,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-10 01:44:22,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93bb481b1/30c6a93d25e84a0bb1fd43a1d03e6d44/FLAGf4d88a011 [2022-02-10 01:44:22,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93bb481b1/30c6a93d25e84a0bb1fd43a1d03e6d44 [2022-02-10 01:44:22,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 01:44:22,023 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 01:44:22,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 01:44:22,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 01:44:22,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 01:44:22,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd4411b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22, skipping insertion in model container [2022-02-10 01:44:22,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 01:44:22,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 01:44:22,216 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/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-02-10 01:44:22,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 01:44:22,347 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 01:44:22,365 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/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-02-10 01:44:22,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 01:44:22,423 INFO L208 MainTranslator]: Completed translation [2022-02-10 01:44:22,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22 WrapperNode [2022-02-10 01:44:22,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 01:44:22,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 01:44:22,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 01:44:22,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 01:44:22,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,466 INFO L137 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-02-10 01:44:22,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 01:44:22,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 01:44:22,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 01:44:22,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 01:44:22,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 01:44:22,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 01:44:22,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 01:44:22,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 01:44:22,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (1/1) ... [2022-02-10 01:44:22,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 01:44:22,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 01:44:22,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 01:44:22,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 01:44:22,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 01:44:22,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 01:44:22,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 01:44:22,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 01:44:22,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 01:44:22,554 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-02-10 01:44:22,555 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-02-10 01:44:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-02-10 01:44:22,555 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-02-10 01:44:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-02-10 01:44:22,555 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-02-10 01:44:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 01:44:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 01:44:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 01:44:22,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 01:44:22,556 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 01:44:22,631 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 01:44:22,632 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 01:44:22,752 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 01:44:22,757 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 01:44:22,757 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 01:44:22,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 01:44:22 BoogieIcfgContainer [2022-02-10 01:44:22,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 01:44:22,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 01:44:22,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 01:44:22,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 01:44:22,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 01:44:22" (1/3) ... [2022-02-10 01:44:22,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18484e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 01:44:22, skipping insertion in model container [2022-02-10 01:44:22,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:44:22" (2/3) ... [2022-02-10 01:44:22,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18484e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 01:44:22, skipping insertion in model container [2022-02-10 01:44:22,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 01:44:22" (3/3) ... [2022-02-10 01:44:22,765 INFO L111 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-10 01:44:22,769 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 01:44:22,769 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 01:44:22,769 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 01:44:22,769 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 01:44:22,805 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,805 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,806 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,806 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,806 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,806 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,806 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,806 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,807 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,807 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,808 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,808 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,808 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,808 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,808 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,809 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,809 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,809 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,809 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,809 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,810 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,810 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,810 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,810 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,812 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,812 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,812 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,812 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,812 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,812 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,813 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,813 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,814 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,814 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,814 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,814 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,817 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,818 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,818 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,818 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,820 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,820 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,820 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,821 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,821 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,822 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,822 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,822 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:44:22,825 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-10 01:44:22,857 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 01:44:22,870 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, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 01:44:22,870 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-10 01:44:22,885 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 92 transitions, 199 flow [2022-02-10 01:44:23,116 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:44:51,031 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1571544 transitions and produced 504429 states. [2022-02-10 01:44:56,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 504429 states, 371428 states have (on average 1.3736228824967422) internal successors, (510202), 504428 states have internal predecessors, (510202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:44:57,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-10 01:44:57,145 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:44:57,146 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] [2022-02-10 01:44:57,147 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 01:44:57,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:44:57,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1011825075, now seen corresponding path program 1 times [2022-02-10 01:44:57,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:44:57,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230914268] [2022-02-10 01:44:57,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:44:57,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:44:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:44:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:44:57,487 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:44:57,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230914268] [2022-02-10 01:44:57,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230914268] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:44:57,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:44:57,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 01:44:57,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190802414] [2022-02-10 01:44:57,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:44:57,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 01:44:57,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:44:57,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 01:44:57,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-10 01:45:04,866 INFO L87 Difference]: Start difference. First operand has 504429 states, 371428 states have (on average 1.3736228824967422) internal successors, (510202), 504428 states have internal predecessors, (510202), 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 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:16,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:45:16,644 INFO L93 Difference]: Finished difference Result 287525 states and 290419 transitions. [2022-02-10 01:45:16,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 01:45:16,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-02-10 01:45:16,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:45:17,023 INFO L225 Difference]: With dead ends: 287525 [2022-02-10 01:45:17,024 INFO L226 Difference]: Without dead ends: 35057 [2022-02-10 01:45:17,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-10 01:45:17,039 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 110 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 01:45:17,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 434 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 01:45:17,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35057 states. [2022-02-10 01:45:17,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35057 to 2748. [2022-02-10 01:45:17,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2748 states, 2713 states have (on average 1.265757464061924) internal successors, (3434), 2747 states have internal predecessors, (3434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:17,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 3434 transitions. [2022-02-10 01:45:17,492 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 3434 transitions. Word has length 55 [2022-02-10 01:45:17,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:45:17,493 INFO L470 AbstractCegarLoop]: Abstraction has 2748 states and 3434 transitions. [2022-02-10 01:45:17,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:17,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 3434 transitions. [2022-02-10 01:45:17,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-02-10 01:45:17,500 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:45:17,500 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] [2022-02-10 01:45:17,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 01:45:17,501 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 01:45:17,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:45:17,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2146001772, now seen corresponding path program 1 times [2022-02-10 01:45:17,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:45:17,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312984199] [2022-02-10 01:45:17,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:45:17,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:45:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:45:17,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:45:17,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:45:17,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312984199] [2022-02-10 01:45:17,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312984199] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:45:17,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:45:17,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 01:45:17,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760091744] [2022-02-10 01:45:17,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:45:17,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 01:45:17,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:45:17,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 01:45:17,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 01:45:17,707 INFO L87 Difference]: Start difference. First operand 2748 states and 3434 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:17,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:45:17,836 INFO L93 Difference]: Finished difference Result 3205 states and 3827 transitions. [2022-02-10 01:45:17,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 01:45:17,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-02-10 01:45:17,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:45:17,848 INFO L225 Difference]: With dead ends: 3205 [2022-02-10 01:45:17,848 INFO L226 Difference]: Without dead ends: 2397 [2022-02-10 01:45:17,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-02-10 01:45:17,850 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 100 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:45:17,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 335 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:45:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-02-10 01:45:17,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 2224. [2022-02-10 01:45:17,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2224 states, 2189 states have (on average 1.2530835998172682) internal successors, (2743), 2223 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 2743 transitions. [2022-02-10 01:45:17,887 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 2743 transitions. Word has length 57 [2022-02-10 01:45:17,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:45:17,887 INFO L470 AbstractCegarLoop]: Abstraction has 2224 states and 2743 transitions. [2022-02-10 01:45:17,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 2743 transitions. [2022-02-10 01:45:17,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-10 01:45:17,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:45:17,891 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] [2022-02-10 01:45:17,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 01:45:17,891 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 01:45:17,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:45:17,892 INFO L85 PathProgramCache]: Analyzing trace with hash -112141301, now seen corresponding path program 1 times [2022-02-10 01:45:17,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:45:17,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539155792] [2022-02-10 01:45:17,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:45:17,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:45:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:45:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:45:18,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:45:18,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539155792] [2022-02-10 01:45:18,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539155792] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:45:18,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:45:18,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 01:45:18,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385219020] [2022-02-10 01:45:18,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:45:18,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 01:45:18,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:45:18,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 01:45:18,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-10 01:45:18,013 INFO L87 Difference]: Start difference. First operand 2224 states and 2743 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:45:18,175 INFO L93 Difference]: Finished difference Result 3315 states and 3858 transitions. [2022-02-10 01:45:18,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 01:45:18,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-02-10 01:45:18,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:45:18,184 INFO L225 Difference]: With dead ends: 3315 [2022-02-10 01:45:18,184 INFO L226 Difference]: Without dead ends: 1932 [2022-02-10 01:45:18,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-02-10 01:45:18,187 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 82 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:45:18,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 533 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:45:18,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2022-02-10 01:45:18,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2022-02-10 01:45:18,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1904 states have (on average 1.245798319327731) internal successors, (2372), 1931 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 2372 transitions. [2022-02-10 01:45:18,219 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 2372 transitions. Word has length 59 [2022-02-10 01:45:18,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:45:18,220 INFO L470 AbstractCegarLoop]: Abstraction has 1932 states and 2372 transitions. [2022-02-10 01:45:18,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 2372 transitions. [2022-02-10 01:45:18,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-10 01:45:18,223 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:45:18,223 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] [2022-02-10 01:45:18,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 01:45:18,224 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 01:45:18,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:45:18,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1450453613, now seen corresponding path program 1 times [2022-02-10 01:45:18,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:45:18,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452213172] [2022-02-10 01:45:18,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:45:18,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:45:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:45:18,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:45:18,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:45:18,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452213172] [2022-02-10 01:45:18,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452213172] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:45:18,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:45:18,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 01:45:18,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13206267] [2022-02-10 01:45:18,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:45:18,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 01:45:18,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:45:18,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 01:45:18,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-10 01:45:18,326 INFO L87 Difference]: Start difference. First operand 1932 states and 2372 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:45:18,370 INFO L93 Difference]: Finished difference Result 1767 states and 2138 transitions. [2022-02-10 01:45:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 01:45:18,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 60 [2022-02-10 01:45:18,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:45:18,373 INFO L225 Difference]: With dead ends: 1767 [2022-02-10 01:45:18,373 INFO L226 Difference]: Without dead ends: 1762 [2022-02-10 01:45:18,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-10 01:45:18,374 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 69 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:45:18,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 266 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:45:18,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2022-02-10 01:45:18,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762. [2022-02-10 01:45:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1734 states have (on average 1.2301038062283738) internal successors, (2133), 1761 states have internal predecessors, (2133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2133 transitions. [2022-02-10 01:45:18,393 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2133 transitions. Word has length 60 [2022-02-10 01:45:18,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:45:18,393 INFO L470 AbstractCegarLoop]: Abstraction has 1762 states and 2133 transitions. [2022-02-10 01:45:18,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2133 transitions. [2022-02-10 01:45:18,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-10 01:45:18,395 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:45:18,395 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] [2022-02-10 01:45:18,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 01:45:18,396 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 01:45:18,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:45:18,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1029879214, now seen corresponding path program 1 times [2022-02-10 01:45:18,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:45:18,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186476018] [2022-02-10 01:45:18,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:45:18,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:45:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:45:18,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:45:18,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:45:18,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186476018] [2022-02-10 01:45:18,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186476018] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:45:18,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:45:18,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 01:45:18,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650700842] [2022-02-10 01:45:18,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:45:18,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 01:45:18,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:45:18,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 01:45:18,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 01:45:18,483 INFO L87 Difference]: Start difference. First operand 1762 states and 2133 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:45:18,550 INFO L93 Difference]: Finished difference Result 1297 states and 1531 transitions. [2022-02-10 01:45:18,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 01:45:18,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-02-10 01:45:18,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:45:18,553 INFO L225 Difference]: With dead ends: 1297 [2022-02-10 01:45:18,553 INFO L226 Difference]: Without dead ends: 1202 [2022-02-10 01:45:18,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-02-10 01:45:18,554 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 120 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:45:18,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 291 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:45:18,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-02-10 01:45:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1202. [2022-02-10 01:45:18,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 1178 states have (on average 1.2190152801358234) internal successors, (1436), 1201 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1436 transitions. [2022-02-10 01:45:18,715 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1436 transitions. Word has length 61 [2022-02-10 01:45:18,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:45:18,716 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 1436 transitions. [2022-02-10 01:45:18,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1436 transitions. [2022-02-10 01:45:18,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-10 01:45:18,717 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:45:18,717 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] [2022-02-10 01:45:18,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 01:45:18,718 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 01:45:18,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:45:18,718 INFO L85 PathProgramCache]: Analyzing trace with hash 707423697, now seen corresponding path program 1 times [2022-02-10 01:45:18,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:45:18,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956049435] [2022-02-10 01:45:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:45:18,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:45:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:45:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:45:18,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:45:18,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956049435] [2022-02-10 01:45:18,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956049435] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:45:18,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:45:18,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 01:45:18,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105266057] [2022-02-10 01:45:18,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:45:18,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 01:45:18,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:45:18,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 01:45:18,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-10 01:45:18,833 INFO L87 Difference]: Start difference. First operand 1202 states and 1436 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:45:18,907 INFO L93 Difference]: Finished difference Result 737 states and 865 transitions. [2022-02-10 01:45:18,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 01:45:18,907 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-02-10 01:45:18,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:45:18,908 INFO L225 Difference]: With dead ends: 737 [2022-02-10 01:45:18,908 INFO L226 Difference]: Without dead ends: 491 [2022-02-10 01:45:18,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-02-10 01:45:18,909 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 174 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:45:18,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 270 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:45:18,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-02-10 01:45:18,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 482. [2022-02-10 01:45:18,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 473 states have (on average 1.2346723044397463) internal successors, (584), 481 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 584 transitions. [2022-02-10 01:45:18,914 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 584 transitions. Word has length 63 [2022-02-10 01:45:18,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:45:18,914 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 584 transitions. [2022-02-10 01:45:18,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:18,915 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 584 transitions. [2022-02-10 01:45:18,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-10 01:45:18,915 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:45:18,915 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, 1, 1, 1, 1] [2022-02-10 01:45:18,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 01:45:18,916 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 01:45:18,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:45:18,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1848504503, now seen corresponding path program 1 times [2022-02-10 01:45:18,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:45:18,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655043277] [2022-02-10 01:45:18,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:45:18,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:45:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:45:18,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:45:18,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:45:18,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655043277] [2022-02-10 01:45:18,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655043277] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:45:18,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:45:18,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 01:45:18,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598839713] [2022-02-10 01:45:18,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:45:18,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 01:45:18,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:45:18,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 01:45:18,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-10 01:45:18,990 INFO L87 Difference]: Start difference. First operand 482 states and 584 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:19,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:45:19,043 INFO L93 Difference]: Finished difference Result 792 states and 927 transitions. [2022-02-10 01:45:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 01:45:19,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2022-02-10 01:45:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:45:19,045 INFO L225 Difference]: With dead ends: 792 [2022-02-10 01:45:19,045 INFO L226 Difference]: Without dead ends: 473 [2022-02-10 01:45:19,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-02-10 01:45:19,047 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 22 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:45:19,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 453 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:45:19,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-02-10 01:45:19,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2022-02-10 01:45:19,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 464 states have (on average 1.2198275862068966) internal successors, (566), 472 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:19,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 566 transitions. [2022-02-10 01:45:19,052 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 566 transitions. Word has length 67 [2022-02-10 01:45:19,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:45:19,052 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 566 transitions. [2022-02-10 01:45:19,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:19,053 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 566 transitions. [2022-02-10 01:45:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-10 01:45:19,053 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:45:19,053 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, 1, 1, 1, 1] [2022-02-10 01:45:19,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 01:45:19,054 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 01:45:19,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:45:19,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2018807495, now seen corresponding path program 2 times [2022-02-10 01:45:19,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:45:19,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6999885] [2022-02-10 01:45:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:45:19,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:45:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:45:19,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:45:19,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:45:19,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6999885] [2022-02-10 01:45:19,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6999885] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:45:19,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:45:19,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 01:45:19,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380749413] [2022-02-10 01:45:19,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:45:19,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 01:45:19,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:45:19,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 01:45:19,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-10 01:45:19,148 INFO L87 Difference]: Start difference. First operand 473 states and 566 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:19,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:45:19,202 INFO L93 Difference]: Finished difference Result 720 states and 811 transitions. [2022-02-10 01:45:19,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 01:45:19,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2022-02-10 01:45:19,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:45:19,203 INFO L225 Difference]: With dead ends: 720 [2022-02-10 01:45:19,203 INFO L226 Difference]: Without dead ends: 433 [2022-02-10 01:45:19,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-02-10 01:45:19,204 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 55 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:45:19,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 329 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:45:19,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-02-10 01:45:19,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2022-02-10 01:45:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 424 states have (on average 1.1674528301886793) internal successors, (495), 432 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:19,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 495 transitions. [2022-02-10 01:45:19,209 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 495 transitions. Word has length 67 [2022-02-10 01:45:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:45:19,209 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 495 transitions. [2022-02-10 01:45:19,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 495 transitions. [2022-02-10 01:45:19,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-10 01:45:19,210 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:45:19,210 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, 1, 1, 1, 1] [2022-02-10 01:45:19,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 01:45:19,210 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 01:45:19,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:45:19,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1534434771, now seen corresponding path program 3 times [2022-02-10 01:45:19,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:45:19,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114587363] [2022-02-10 01:45:19,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:45:19,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:45:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:45:19,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:45:19,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:45:19,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114587363] [2022-02-10 01:45:19,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114587363] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:45:19,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:45:19,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 01:45:19,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707508434] [2022-02-10 01:45:19,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:45:19,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 01:45:19,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:45:19,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 01:45:19,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-10 01:45:19,299 INFO L87 Difference]: Start difference. First operand 433 states and 495 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:19,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:45:19,366 INFO L93 Difference]: Finished difference Result 412 states and 465 transitions. [2022-02-10 01:45:19,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 01:45:19,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2022-02-10 01:45:19,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:45:19,366 INFO L225 Difference]: With dead ends: 412 [2022-02-10 01:45:19,366 INFO L226 Difference]: Without dead ends: 0 [2022-02-10 01:45:19,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-02-10 01:45:19,368 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 65 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:45:19,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 311 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:45:19,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-10 01:45:19,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-10 01:45:19,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:19,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-10 01:45:19,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-02-10 01:45:19,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:45:19,369 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-10 01:45:19,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 01:45:19,369 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-10 01:45:19,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-10 01:45:19,371 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-10 01:45:19,371 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-10 01:45:19,371 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-10 01:45:19,372 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-10 01:45:19,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 01:45:19,373 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-02-10 01:45:19,374 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 01:45:19,374 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 01:45:19,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 01:45:19 BasicIcfg [2022-02-10 01:45:19,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 01:45:19,377 INFO L158 Benchmark]: Toolchain (without parser) took 57353.94ms. Allocated memory was 230.7MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 173.1MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2022-02-10 01:45:19,377 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 230.7MB. Free memory is still 190.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 01:45:19,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.53ms. Allocated memory was 230.7MB in the beginning and 341.8MB in the end (delta: 111.1MB). Free memory was 173.0MB in the beginning and 303.8MB in the end (delta: -130.8MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. [2022-02-10 01:45:19,377 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.98ms. Allocated memory is still 341.8MB. Free memory was 303.8MB in the beginning and 301.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 01:45:19,378 INFO L158 Benchmark]: Boogie Preprocessor took 17.76ms. Allocated memory is still 341.8MB. Free memory was 301.8MB in the beginning and 300.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 01:45:19,378 INFO L158 Benchmark]: RCFGBuilder took 273.33ms. Allocated memory is still 341.8MB. Free memory was 300.2MB in the beginning and 287.1MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-10 01:45:19,378 INFO L158 Benchmark]: TraceAbstraction took 56616.06ms. Allocated memory was 341.8MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 286.6MB in the beginning and 4.0GB in the end (delta: -3.8GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2022-02-10 01:45:19,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 230.7MB. Free memory is still 190.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 398.53ms. Allocated memory was 230.7MB in the beginning and 341.8MB in the end (delta: 111.1MB). Free memory was 173.0MB in the beginning and 303.8MB in the end (delta: -130.8MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.98ms. Allocated memory is still 341.8MB. Free memory was 303.8MB in the beginning and 301.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.76ms. Allocated memory is still 341.8MB. Free memory was 301.8MB in the beginning and 300.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 273.33ms. Allocated memory is still 341.8MB. Free memory was 300.2MB in the beginning and 287.1MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 56616.06ms. Allocated memory was 341.8MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 286.6MB in the beginning and 4.0GB in the end (delta: -3.8GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - 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, 115 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 56.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 6.1s, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 28.2s, PartialOrderReductionTime: 27.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 797 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 797 mSDsluCounter, 3222 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2630 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 679 mSDtfsCounter, 420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=504429occurred in iteration=0, InterpolantAutomatonStates: 80, 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, 9 MinimizatonAttempts, 32491 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 556 NumberOfCodeBlocks, 556 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 547 ConstructedInterpolants, 0 QuantifiedInterpolants, 1557 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-10 01:45:19,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...