/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-15 10:49:26,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 10:49:26,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 10:49:26,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 10:49:26,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-15 10:49:26,404 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 10:49:26,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 10:49:26,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-15 10:49:26,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-15 10:49:26,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-15 10:49:26,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-15 10:49:26,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-15 10:49:26,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-15 10:49:26,406 INFO L138 SettingsManager]: * Use SBE=true [2022-02-15 10:49:26,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 10:49:26,406 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 10:49:26,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 10:49:26,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 10:49:26,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 10:49:26,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 10:49:26,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 10:49:26,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 10:49:26,407 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 10:49:26,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 10:49:26,407 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 10:49:26,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 10:49:26,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 10:49:26,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 10:49:26,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 10:49:26,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 10:49:26,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 10:49:26,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 10:49:26,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-15 10:49:26,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-15 10:49:26,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 10:49:26,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-15 10:49:26,408 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-15 10:49:26,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 10:49:26,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-15 10:49:26,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 10:49:26,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 10:49:26,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 10:49:26,559 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 10:49:26,559 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 10:49:26,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-15 10:49:26,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88873821b/230b7efe518f47c7ac218487cafbd9b3/FLAG85f554dab [2022-02-15 10:49:27,033 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 10:49:27,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-15 10:49:27,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88873821b/230b7efe518f47c7ac218487cafbd9b3/FLAG85f554dab [2022-02-15 10:49:27,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88873821b/230b7efe518f47c7ac218487cafbd9b3 [2022-02-15 10:49:27,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 10:49:27,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 10:49:27,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 10:49:27,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 10:49:27,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 10:49:27,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e06e370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27, skipping insertion in model container [2022-02-15 10:49:27,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 10:49:27,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 10:49:27,266 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-02-15 10:49:27,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 10:49:27,357 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 10:49:27,366 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/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-02-15 10:49:27,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 10:49:27,419 INFO L208 MainTranslator]: Completed translation [2022-02-15 10:49:27,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27 WrapperNode [2022-02-15 10:49:27,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 10:49:27,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-15 10:49:27,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-15 10:49:27,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-15 10:49:27,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,473 INFO L137 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2022-02-15 10:49:27,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-15 10:49:27,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 10:49:27,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 10:49:27,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 10:49:27,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 10:49:27,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 10:49:27,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 10:49:27,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 10:49:27,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (1/1) ... [2022-02-15 10:49:27,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 10:49:27,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 10:49:27,548 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) [2022-02-15 10:49:27,566 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 [2022-02-15 10:49:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 10:49:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-15 10:49:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 10:49:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-15 10:49:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 10:49:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-02-15 10:49:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-02-15 10:49:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-02-15 10:49:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-02-15 10:49:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-02-15 10:49:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-02-15 10:49:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-02-15 10:49:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-02-15 10:49:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 10:49:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-15 10:49:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 10:49:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 10:49:27,579 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-15 10:49:27,651 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 10:49:27,652 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 10:49:27,765 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 10:49:27,770 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 10:49:27,771 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-15 10:49:27,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:49:27 BoogieIcfgContainer [2022-02-15 10:49:27,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 10:49:27,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 10:49:27,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 10:49:27,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 10:49:27,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:49:27" (1/3) ... [2022-02-15 10:49:27,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589a0aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:49:27, skipping insertion in model container [2022-02-15 10:49:27,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:49:27" (2/3) ... [2022-02-15 10:49:27,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589a0aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:49:27, skipping insertion in model container [2022-02-15 10:49:27,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:49:27" (3/3) ... [2022-02-15 10:49:27,778 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-15 10:49:27,782 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-15 10:49:27,782 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-15 10:49:27,782 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 10:49:27,782 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-15 10:49:27,812 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,812 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,812 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,812 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,813 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,813 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,813 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,813 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,814 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,814 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,814 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,814 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,814 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,814 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,815 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,815 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,815 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,815 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,815 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,815 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,816 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,816 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,816 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,816 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,817 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,817 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,817 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,817 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,817 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,817 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,817 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,817 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,818 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,818 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,818 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,818 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,819 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,819 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,819 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,819 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,819 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,819 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,819 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,819 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,820 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,820 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,820 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,820 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,823 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,823 WARN L322 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,823 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,823 WARN L322 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,825 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,826 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,826 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,826 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,827 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,827 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,827 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,827 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,828 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,828 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,828 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,828 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-15 10:49:27,829 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-15 10:49:27,859 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 10:49:27,863 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 [2022-02-15 10:49:27,864 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-15 10:49:27,874 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 116 places, 105 transitions, 230 flow [2022-02-15 10:49:29,284 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 34177 states, 34176 states have (on average 4.3103639981273405) internal successors, (147311), 34176 states have internal predecessors, (147311), 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) [2022-02-15 10:49:29,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 34177 states, 34176 states have (on average 4.3103639981273405) internal successors, (147311), 34176 states have internal predecessors, (147311), 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) [2022-02-15 10:49:29,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-15 10:49:29,457 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:29,458 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] [2022-02-15 10:49:29,459 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:29,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:29,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1881502097, now seen corresponding path program 1 times [2022-02-15 10:49:29,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:29,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868431949] [2022-02-15 10:49:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:29,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:29,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:29,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868431949] [2022-02-15 10:49:29,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868431949] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:29,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:29,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 10:49:29,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763781547] [2022-02-15 10:49:29,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:29,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 10:49:29,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:29,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 10:49:29,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-15 10:49:29,936 INFO L87 Difference]: Start difference. First operand has 34177 states, 34176 states have (on average 4.3103639981273405) internal successors, (147311), 34176 states have internal predecessors, (147311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 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) [2022-02-15 10:49:31,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:31,320 INFO L93 Difference]: Finished difference Result 64877 states and 272171 transitions. [2022-02-15 10:49:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 10:49:31,322 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 [2022-02-15 10:49:31,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:31,656 INFO L225 Difference]: With dead ends: 64877 [2022-02-15 10:49:31,657 INFO L226 Difference]: Without dead ends: 44117 [2022-02-15 10:49:31,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-15 10:49:31,661 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 257 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:31,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 672 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 10:49:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44117 states. [2022-02-15 10:49:33,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44117 to 36725. [2022-02-15 10:49:33,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36725 states, 36724 states have (on average 4.154640017427296) internal successors, (152575), 36724 states have internal predecessors, (152575), 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) [2022-02-15 10:49:33,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36725 states to 36725 states and 152575 transitions. [2022-02-15 10:49:33,853 INFO L78 Accepts]: Start accepts. Automaton has 36725 states and 152575 transitions. Word has length 61 [2022-02-15 10:49:33,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:33,854 INFO L470 AbstractCegarLoop]: Abstraction has 36725 states and 152575 transitions. [2022-02-15 10:49:33,855 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) [2022-02-15 10:49:33,855 INFO L276 IsEmpty]: Start isEmpty. Operand 36725 states and 152575 transitions. [2022-02-15 10:49:33,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-15 10:49:33,931 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:33,931 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] [2022-02-15 10:49:33,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 10:49:33,932 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:33,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:33,935 INFO L85 PathProgramCache]: Analyzing trace with hash -300703474, now seen corresponding path program 1 times [2022-02-15 10:49:33,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:33,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426641217] [2022-02-15 10:49:33,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:33,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:34,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:34,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426641217] [2022-02-15 10:49:34,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426641217] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:34,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:34,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 10:49:34,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491365417] [2022-02-15 10:49:34,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:34,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 10:49:34,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:34,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 10:49:34,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-15 10:49:34,134 INFO L87 Difference]: Start difference. First operand 36725 states and 152575 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2022-02-15 10:49:35,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:35,070 INFO L93 Difference]: Finished difference Result 55461 states and 228833 transitions. [2022-02-15 10:49:35,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 10:49:35,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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 [2022-02-15 10:49:35,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:35,362 INFO L225 Difference]: With dead ends: 55461 [2022-02-15 10:49:35,362 INFO L226 Difference]: Without dead ends: 44521 [2022-02-15 10:49:35,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-15 10:49:35,366 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 237 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:35,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 644 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 10:49:35,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44521 states. [2022-02-15 10:49:36,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44521 to 33841. [2022-02-15 10:49:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33841 states, 33840 states have (on average 4.141105200945627) internal successors, (140135), 33840 states have internal predecessors, (140135), 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) [2022-02-15 10:49:37,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33841 states to 33841 states and 140135 transitions. [2022-02-15 10:49:37,111 INFO L78 Accepts]: Start accepts. Automaton has 33841 states and 140135 transitions. Word has length 63 [2022-02-15 10:49:37,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:37,113 INFO L470 AbstractCegarLoop]: Abstraction has 33841 states and 140135 transitions. [2022-02-15 10:49:37,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 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) [2022-02-15 10:49:37,113 INFO L276 IsEmpty]: Start isEmpty. Operand 33841 states and 140135 transitions. [2022-02-15 10:49:37,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-15 10:49:37,222 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:37,223 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, 1, 1, 1, 1, 1] [2022-02-15 10:49:37,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 10:49:37,223 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:37,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:37,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1166229359, now seen corresponding path program 1 times [2022-02-15 10:49:37,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:37,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342643365] [2022-02-15 10:49:37,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:37,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:37,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:37,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342643365] [2022-02-15 10:49:37,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342643365] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:37,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:37,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 10:49:37,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969096093] [2022-02-15 10:49:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:37,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 10:49:37,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 10:49:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 10:49:37,365 INFO L87 Difference]: Start difference. First operand 33841 states and 140135 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2022-02-15 10:49:38,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:38,160 INFO L93 Difference]: Finished difference Result 55193 states and 226877 transitions. [2022-02-15 10:49:38,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 10:49:38,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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 65 [2022-02-15 10:49:38,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:38,284 INFO L225 Difference]: With dead ends: 55193 [2022-02-15 10:49:38,285 INFO L226 Difference]: Without dead ends: 29878 [2022-02-15 10:49:38,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-02-15 10:49:38,292 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 157 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:38,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 574 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 10:49:38,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29878 states. [2022-02-15 10:49:39,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29878 to 29878. [2022-02-15 10:49:39,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29878 states, 29877 states have (on average 4.113565619038056) internal successors, (122901), 29877 states have internal predecessors, (122901), 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) [2022-02-15 10:49:39,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29878 states to 29878 states and 122901 transitions. [2022-02-15 10:49:39,447 INFO L78 Accepts]: Start accepts. Automaton has 29878 states and 122901 transitions. Word has length 65 [2022-02-15 10:49:39,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:39,447 INFO L470 AbstractCegarLoop]: Abstraction has 29878 states and 122901 transitions. [2022-02-15 10:49:39,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2022-02-15 10:49:39,448 INFO L276 IsEmpty]: Start isEmpty. Operand 29878 states and 122901 transitions. [2022-02-15 10:49:39,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-15 10:49:39,516 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:39,516 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] [2022-02-15 10:49:39,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 10:49:39,516 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:39,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:39,516 INFO L85 PathProgramCache]: Analyzing trace with hash 281679375, now seen corresponding path program 2 times [2022-02-15 10:49:39,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:39,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805394527] [2022-02-15 10:49:39,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:39,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:39,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:39,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805394527] [2022-02-15 10:49:39,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805394527] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:39,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:39,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 10:49:39,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825204173] [2022-02-15 10:49:39,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:39,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 10:49:39,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:39,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 10:49:39,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-15 10:49:39,648 INFO L87 Difference]: Start difference. First operand 29878 states and 122901 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2022-02-15 10:49:40,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:40,326 INFO L93 Difference]: Finished difference Result 45398 states and 185185 transitions. [2022-02-15 10:49:40,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 10:49:40,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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 65 [2022-02-15 10:49:40,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:40,474 INFO L225 Difference]: With dead ends: 45398 [2022-02-15 10:49:40,474 INFO L226 Difference]: Without dead ends: 35998 [2022-02-15 10:49:40,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-15 10:49:40,475 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 253 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:40,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 696 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 10:49:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35998 states. [2022-02-15 10:49:41,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35998 to 28158. [2022-02-15 10:49:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28158 states, 28157 states have (on average 4.093156231132578) internal successors, (115251), 28157 states have internal predecessors, (115251), 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) [2022-02-15 10:49:41,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28158 states to 28158 states and 115251 transitions. [2022-02-15 10:49:41,657 INFO L78 Accepts]: Start accepts. Automaton has 28158 states and 115251 transitions. Word has length 65 [2022-02-15 10:49:41,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:41,658 INFO L470 AbstractCegarLoop]: Abstraction has 28158 states and 115251 transitions. [2022-02-15 10:49:41,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2022-02-15 10:49:41,658 INFO L276 IsEmpty]: Start isEmpty. Operand 28158 states and 115251 transitions. [2022-02-15 10:49:41,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 10:49:41,711 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:41,711 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] [2022-02-15 10:49:41,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 10:49:41,711 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:41,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:41,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1923005498, now seen corresponding path program 1 times [2022-02-15 10:49:41,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:41,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897342300] [2022-02-15 10:49:41,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:41,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:41,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:41,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897342300] [2022-02-15 10:49:41,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897342300] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:41,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:41,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 10:49:41,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180874616] [2022-02-15 10:49:41,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:41,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 10:49:41,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:41,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 10:49:41,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-15 10:49:41,870 INFO L87 Difference]: Start difference. First operand 28158 states and 115251 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) [2022-02-15 10:49:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:42,427 INFO L93 Difference]: Finished difference Result 37742 states and 154059 transitions. [2022-02-15 10:49:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 10:49:42,427 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 [2022-02-15 10:49:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:42,566 INFO L225 Difference]: With dead ends: 37742 [2022-02-15 10:49:42,566 INFO L226 Difference]: Without dead ends: 34622 [2022-02-15 10:49:42,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-15 10:49:42,567 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 200 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:42,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 600 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 10:49:42,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34622 states. [2022-02-15 10:49:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34622 to 25758. [2022-02-15 10:49:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25758 states, 25757 states have (on average 4.081337112241332) internal successors, (105123), 25757 states have internal predecessors, (105123), 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) [2022-02-15 10:49:43,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25758 states to 25758 states and 105123 transitions. [2022-02-15 10:49:43,586 INFO L78 Accepts]: Start accepts. Automaton has 25758 states and 105123 transitions. Word has length 67 [2022-02-15 10:49:43,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:43,587 INFO L470 AbstractCegarLoop]: Abstraction has 25758 states and 105123 transitions. [2022-02-15 10:49:43,587 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) [2022-02-15 10:49:43,587 INFO L276 IsEmpty]: Start isEmpty. Operand 25758 states and 105123 transitions. [2022-02-15 10:49:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-15 10:49:43,644 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:43,644 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, 1] [2022-02-15 10:49:43,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 10:49:43,645 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:43,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:43,645 INFO L85 PathProgramCache]: Analyzing trace with hash 124826495, now seen corresponding path program 1 times [2022-02-15 10:49:43,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:43,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795747712] [2022-02-15 10:49:43,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:43,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:43,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:43,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:43,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795747712] [2022-02-15 10:49:43,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795747712] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:43,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:43,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 10:49:43,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002758561] [2022-02-15 10:49:43,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:43,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 10:49:43,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:43,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 10:49:43,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-15 10:49:43,739 INFO L87 Difference]: Start difference. First operand 25758 states and 105123 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2022-02-15 10:49:44,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:44,362 INFO L93 Difference]: Finished difference Result 43294 states and 174595 transitions. [2022-02-15 10:49:44,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 10:49:44,363 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2022-02-15 10:49:44,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:44,475 INFO L225 Difference]: With dead ends: 43294 [2022-02-15 10:49:44,475 INFO L226 Difference]: Without dead ends: 31294 [2022-02-15 10:49:44,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-15 10:49:44,477 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 184 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:44,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 781 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 10:49:44,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31294 states. [2022-02-15 10:49:45,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31294 to 22910. [2022-02-15 10:49:45,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22910 states, 22909 states have (on average 4.030686629708848) internal successors, (92339), 22909 states have internal predecessors, (92339), 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) [2022-02-15 10:49:45,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22910 states to 22910 states and 92339 transitions. [2022-02-15 10:49:45,486 INFO L78 Accepts]: Start accepts. Automaton has 22910 states and 92339 transitions. Word has length 68 [2022-02-15 10:49:45,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:45,486 INFO L470 AbstractCegarLoop]: Abstraction has 22910 states and 92339 transitions. [2022-02-15 10:49:45,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2022-02-15 10:49:45,487 INFO L276 IsEmpty]: Start isEmpty. Operand 22910 states and 92339 transitions. [2022-02-15 10:49:45,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-15 10:49:45,537 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:45,537 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, 1] [2022-02-15 10:49:45,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 10:49:45,537 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:45,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:45,538 INFO L85 PathProgramCache]: Analyzing trace with hash 638700530, now seen corresponding path program 1 times [2022-02-15 10:49:45,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:45,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592272068] [2022-02-15 10:49:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:45,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:45,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:45,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592272068] [2022-02-15 10:49:45,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592272068] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:45,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:45,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 10:49:45,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577287603] [2022-02-15 10:49:45,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:45,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 10:49:45,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:45,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 10:49:45,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-15 10:49:45,632 INFO L87 Difference]: Start difference. First operand 22910 states and 92339 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2022-02-15 10:49:45,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:45,985 INFO L93 Difference]: Finished difference Result 38622 states and 153651 transitions. [2022-02-15 10:49:45,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 10:49:45,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2022-02-15 10:49:45,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:46,079 INFO L225 Difference]: With dead ends: 38622 [2022-02-15 10:49:46,079 INFO L226 Difference]: Without dead ends: 27134 [2022-02-15 10:49:46,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-15 10:49:46,080 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 204 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:46,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 733 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 10:49:46,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27134 states. [2022-02-15 10:49:46,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27134 to 20190. [2022-02-15 10:49:46,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20190 states, 20189 states have (on average 3.980930209520036) internal successors, (80371), 20189 states have internal predecessors, (80371), 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) [2022-02-15 10:49:46,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20190 states to 20190 states and 80371 transitions. [2022-02-15 10:49:46,933 INFO L78 Accepts]: Start accepts. Automaton has 20190 states and 80371 transitions. Word has length 68 [2022-02-15 10:49:46,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:46,933 INFO L470 AbstractCegarLoop]: Abstraction has 20190 states and 80371 transitions. [2022-02-15 10:49:46,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2022-02-15 10:49:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 20190 states and 80371 transitions. [2022-02-15 10:49:47,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-15 10:49:47,150 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:47,150 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, 1, 1] [2022-02-15 10:49:47,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 10:49:47,151 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:47,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:47,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1604703909, now seen corresponding path program 1 times [2022-02-15 10:49:47,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:47,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150350052] [2022-02-15 10:49:47,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:47,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:47,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:47,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150350052] [2022-02-15 10:49:47,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150350052] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:47,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:47,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 10:49:47,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380440028] [2022-02-15 10:49:47,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:47,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 10:49:47,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:47,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 10:49:47,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 10:49:47,269 INFO L87 Difference]: Start difference. First operand 20190 states and 80371 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2022-02-15 10:49:47,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:47,500 INFO L93 Difference]: Finished difference Result 27326 states and 107957 transitions. [2022-02-15 10:49:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 10:49:47,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 69 [2022-02-15 10:49:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:47,568 INFO L225 Difference]: With dead ends: 27326 [2022-02-15 10:49:47,568 INFO L226 Difference]: Without dead ends: 19406 [2022-02-15 10:49:47,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-15 10:49:47,572 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 161 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:47,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 404 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 10:49:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19406 states. [2022-02-15 10:49:48,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19406 to 19406. [2022-02-15 10:49:48,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19406 states, 19405 states have (on average 3.9527441381087347) internal successors, (76703), 19405 states have internal predecessors, (76703), 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) [2022-02-15 10:49:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19406 states to 19406 states and 76703 transitions. [2022-02-15 10:49:48,158 INFO L78 Accepts]: Start accepts. Automaton has 19406 states and 76703 transitions. Word has length 69 [2022-02-15 10:49:48,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:48,158 INFO L470 AbstractCegarLoop]: Abstraction has 19406 states and 76703 transitions. [2022-02-15 10:49:48,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2022-02-15 10:49:48,159 INFO L276 IsEmpty]: Start isEmpty. Operand 19406 states and 76703 transitions. [2022-02-15 10:49:48,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-15 10:49:48,199 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:48,199 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, 1, 1, 1] [2022-02-15 10:49:48,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 10:49:48,199 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:48,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:48,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1129407581, now seen corresponding path program 1 times [2022-02-15 10:49:48,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:48,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146649108] [2022-02-15 10:49:48,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:48,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:48,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:48,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146649108] [2022-02-15 10:49:48,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146649108] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:48,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:48,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 10:49:48,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67471773] [2022-02-15 10:49:48,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:48,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 10:49:48,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:48,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 10:49:48,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-15 10:49:48,286 INFO L87 Difference]: Start difference. First operand 19406 states and 76703 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2022-02-15 10:49:48,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:48,501 INFO L93 Difference]: Finished difference Result 23636 states and 91949 transitions. [2022-02-15 10:49:48,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 10:49:48,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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 70 [2022-02-15 10:49:48,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:48,712 INFO L225 Difference]: With dead ends: 23636 [2022-02-15 10:49:48,712 INFO L226 Difference]: Without dead ends: 16256 [2022-02-15 10:49:48,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-02-15 10:49:48,715 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 264 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:48,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 466 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 10:49:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16256 states. [2022-02-15 10:49:49,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16256 to 16256. [2022-02-15 10:49:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16256 states, 16255 states have (on average 3.863488157490003) internal successors, (62801), 16255 states have internal predecessors, (62801), 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) [2022-02-15 10:49:49,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16256 states to 16256 states and 62801 transitions. [2022-02-15 10:49:49,102 INFO L78 Accepts]: Start accepts. Automaton has 16256 states and 62801 transitions. Word has length 70 [2022-02-15 10:49:49,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:49,103 INFO L470 AbstractCegarLoop]: Abstraction has 16256 states and 62801 transitions. [2022-02-15 10:49:49,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 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) [2022-02-15 10:49:49,103 INFO L276 IsEmpty]: Start isEmpty. Operand 16256 states and 62801 transitions. [2022-02-15 10:49:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-02-15 10:49:49,134 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:49,134 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, 1, 1, 1, 1] [2022-02-15 10:49:49,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 10:49:49,134 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:49,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:49,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1978125916, now seen corresponding path program 1 times [2022-02-15 10:49:49,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:49,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186218954] [2022-02-15 10:49:49,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:49,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:49,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:49,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186218954] [2022-02-15 10:49:49,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186218954] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:49,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:49,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 10:49:49,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147742031] [2022-02-15 10:49:49,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:49,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 10:49:49,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:49,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 10:49:49,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-15 10:49:49,199 INFO L87 Difference]: Start difference. First operand 16256 states and 62801 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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) [2022-02-15 10:49:49,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:49,569 INFO L93 Difference]: Finished difference Result 16526 states and 62630 transitions. [2022-02-15 10:49:49,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 10:49:49,570 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 71 [2022-02-15 10:49:49,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:49,605 INFO L225 Difference]: With dead ends: 16526 [2022-02-15 10:49:49,605 INFO L226 Difference]: Without dead ends: 10784 [2022-02-15 10:49:49,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-02-15 10:49:49,606 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 387 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:49,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 516 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 10:49:49,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10784 states. [2022-02-15 10:49:49,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10784 to 10784. [2022-02-15 10:49:49,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10784 states, 10783 states have (on average 3.735231382732078) internal successors, (40277), 10783 states have internal predecessors, (40277), 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) [2022-02-15 10:49:49,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10784 states to 10784 states and 40277 transitions. [2022-02-15 10:49:49,871 INFO L78 Accepts]: Start accepts. Automaton has 10784 states and 40277 transitions. Word has length 71 [2022-02-15 10:49:49,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:49,871 INFO L470 AbstractCegarLoop]: Abstraction has 10784 states and 40277 transitions. [2022-02-15 10:49:49,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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) [2022-02-15 10:49:49,871 INFO L276 IsEmpty]: Start isEmpty. Operand 10784 states and 40277 transitions. [2022-02-15 10:49:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-15 10:49:49,890 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:49,890 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, 1, 1, 1, 1, 1, 1] [2022-02-15 10:49:49,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 10:49:49,890 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:49,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash -981904543, now seen corresponding path program 1 times [2022-02-15 10:49:49,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:49,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562779925] [2022-02-15 10:49:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:49,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:49,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:49,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562779925] [2022-02-15 10:49:49,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562779925] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:49,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:49,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 10:49:49,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351047973] [2022-02-15 10:49:49,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:49,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 10:49:49,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:49,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 10:49:49,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 10:49:49,980 INFO L87 Difference]: Start difference. First operand 10784 states and 40277 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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) [2022-02-15 10:49:50,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:50,127 INFO L93 Difference]: Finished difference Result 16802 states and 62682 transitions. [2022-02-15 10:49:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 10:49:50,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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 73 [2022-02-15 10:49:50,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:50,302 INFO L225 Difference]: With dead ends: 16802 [2022-02-15 10:49:50,302 INFO L226 Difference]: Without dead ends: 10454 [2022-02-15 10:49:50,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-02-15 10:49:50,303 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 210 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:50,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 846 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 10:49:50,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2022-02-15 10:49:50,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 8846. [2022-02-15 10:49:50,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8846 states, 8845 states have (on average 3.7199547767100056) internal successors, (32903), 8845 states have internal predecessors, (32903), 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) [2022-02-15 10:49:50,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 32903 transitions. [2022-02-15 10:49:50,491 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 32903 transitions. Word has length 73 [2022-02-15 10:49:50,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:50,491 INFO L470 AbstractCegarLoop]: Abstraction has 8846 states and 32903 transitions. [2022-02-15 10:49:50,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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) [2022-02-15 10:49:50,491 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 32903 transitions. [2022-02-15 10:49:50,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-02-15 10:49:50,506 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:50,507 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, 1, 1, 1, 1, 1, 1] [2022-02-15 10:49:50,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 10:49:50,507 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:50,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:50,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1759913251, now seen corresponding path program 2 times [2022-02-15 10:49:50,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:50,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524873497] [2022-02-15 10:49:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:50,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:50,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:50,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:50,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524873497] [2022-02-15 10:49:50,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524873497] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:50,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:50,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 10:49:50,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069668869] [2022-02-15 10:49:50,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:50,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 10:49:50,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:50,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 10:49:50,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-02-15 10:49:50,567 INFO L87 Difference]: Start difference. First operand 8846 states and 32903 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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) [2022-02-15 10:49:50,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:50,697 INFO L93 Difference]: Finished difference Result 7469 states and 27287 transitions. [2022-02-15 10:49:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 10:49:50,698 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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 73 [2022-02-15 10:49:50,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:50,705 INFO L225 Difference]: With dead ends: 7469 [2022-02-15 10:49:50,705 INFO L226 Difference]: Without dead ends: 3004 [2022-02-15 10:49:50,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2022-02-15 10:49:50,706 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 330 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:50,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 499 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 10:49:50,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2022-02-15 10:49:50,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 3004. [2022-02-15 10:49:50,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3004 states, 3003 states have (on average 3.58008658008658) internal successors, (10751), 3003 states have internal predecessors, (10751), 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) [2022-02-15 10:49:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 10751 transitions. [2022-02-15 10:49:50,757 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 10751 transitions. Word has length 73 [2022-02-15 10:49:50,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:50,757 INFO L470 AbstractCegarLoop]: Abstraction has 3004 states and 10751 transitions. [2022-02-15 10:49:50,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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) [2022-02-15 10:49:50,757 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 10751 transitions. [2022-02-15 10:49:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-15 10:49:50,762 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 10:49:50,762 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 10:49:50,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 10:49:50,762 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-15 10:49:50,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 10:49:50,762 INFO L85 PathProgramCache]: Analyzing trace with hash 759599186, now seen corresponding path program 1 times [2022-02-15 10:49:50,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 10:49:50,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061577207] [2022-02-15 10:49:50,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 10:49:50,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 10:49:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 10:49:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 10:49:50,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 10:49:50,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061577207] [2022-02-15 10:49:50,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061577207] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 10:49:50,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 10:49:50,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 10:49:50,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280644941] [2022-02-15 10:49:50,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 10:49:50,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 10:49:50,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 10:49:50,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 10:49:50,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 10:49:50,832 INFO L87 Difference]: Start difference. First operand 3004 states and 10751 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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) [2022-02-15 10:49:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 10:49:50,883 INFO L93 Difference]: Finished difference Result 2842 states and 10157 transitions. [2022-02-15 10:49:50,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 10:49:50,883 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 75 [2022-02-15 10:49:50,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 10:49:50,884 INFO L225 Difference]: With dead ends: 2842 [2022-02-15 10:49:50,884 INFO L226 Difference]: Without dead ends: 0 [2022-02-15 10:49:50,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-02-15 10:49:50,884 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 111 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 10:49:50,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 415 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 10:49:50,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-15 10:49:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-15 10:49:50,886 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) [2022-02-15 10:49:50,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-15 10:49:50,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2022-02-15 10:49:50,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 10:49:50,886 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-15 10:49:50,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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) [2022-02-15 10:49:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-15 10:49:50,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-15 10:49:50,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-02-15 10:49:50,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-15 10:49:50,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-15 10:49:50,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-15 10:49:50,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-15 10:49:50,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 10:49:50,891 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 10:49:50,892 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-15 10:49:50,892 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 10:49:50,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 10:49:50 BasicIcfg [2022-02-15 10:49:50,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 10:49:50,895 INFO L158 Benchmark]: Toolchain (without parser) took 23819.14ms. Allocated memory was 210.8MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 155.8MB in the beginning and 5.0GB in the end (delta: -4.8GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2022-02-15 10:49:50,895 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 210.8MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 10:49:50,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.86ms. Allocated memory was 210.8MB in the beginning and 313.5MB in the end (delta: 102.8MB). Free memory was 155.7MB in the beginning and 279.3MB in the end (delta: -123.6MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. [2022-02-15 10:49:50,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.58ms. Allocated memory is still 313.5MB. Free memory was 279.3MB in the beginning and 277.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 10:49:50,896 INFO L158 Benchmark]: Boogie Preprocessor took 27.39ms. Allocated memory is still 313.5MB. Free memory was 277.2MB in the beginning and 275.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-15 10:49:50,896 INFO L158 Benchmark]: RCFGBuilder took 270.34ms. Allocated memory is still 313.5MB. Free memory was 275.6MB in the beginning and 260.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-15 10:49:50,896 INFO L158 Benchmark]: TraceAbstraction took 23120.83ms. Allocated memory was 313.5MB in the beginning and 7.3GB in the end (delta: 7.0GB). Free memory was 260.4MB in the beginning and 5.0GB in the end (delta: -4.7GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2022-02-15 10:49:50,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 210.8MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 341.86ms. Allocated memory was 210.8MB in the beginning and 313.5MB in the end (delta: 102.8MB). Free memory was 155.7MB in the beginning and 279.3MB in the end (delta: -123.6MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.58ms. Allocated memory is still 313.5MB. Free memory was 279.3MB in the beginning and 277.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.39ms. Allocated memory is still 313.5MB. Free memory was 277.2MB in the beginning and 275.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 270.34ms. Allocated memory is still 313.5MB. Free memory was 275.6MB in the beginning and 260.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 23120.83ms. Allocated memory was 313.5MB in the beginning and 7.3GB in the end (delta: 7.0GB). Free memory was 260.4MB in the beginning and 5.0GB in the end (delta: -4.7GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 134 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 23.0s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.9s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2955 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2955 mSDsluCounter, 7846 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6332 mSDsCounter, 155 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 924 IncrementalHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 155 mSolverCounterUnsat, 1718 mSDtfsCounter, 924 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36725occurred in iteration=1, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 51712 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 888 NumberOfCodeBlocks, 888 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 875 ConstructedInterpolants, 0 QuantifiedInterpolants, 4377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2022-02-15 10:49:50,948 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...