/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/weaver/popl20-more-queue-add-3-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:54:24,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:54:24,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:54:24,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 22:54:24,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 22:54:24,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 22:54:24,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 22:54:24,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 22:54:25,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 22:54:25,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 22:54:25,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 22:54:25,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 22:54:25,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 22:54:25,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 22:54:25,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 22:54:25,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 22:54:25,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 22:54:25,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 22:54:25,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 22:54:25,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 22:54:25,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 22:54:25,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 22:54:25,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 22:54:25,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 22:54:25,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 22:54:25,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:54:25,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:54:25,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:54:25,031 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 22:54:25,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:54:25,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:54:25,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:54:25,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:54:25,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:54:25,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:54:25,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:54:25,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:54:25,057 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:54:25,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:54:25,057 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:54:25,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:54:25,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:54:25,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:54:25,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:54:25,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:54:25,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:54:25,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:54:25,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:54:25,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:54:25,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:54:25,060 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:54:25,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:54:25,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:54:25,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:54:25,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:54:25,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:54:25,277 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:54:25,277 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:54:25,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-02-10 22:54:25,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbc1936cd/b45f5d21cc5c468a9c40252d09d22278/FLAGdf1e9ed86 [2022-02-10 22:54:25,724 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:54:25,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-02-10 22:54:25,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbc1936cd/b45f5d21cc5c468a9c40252d09d22278/FLAGdf1e9ed86 [2022-02-10 22:54:25,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbc1936cd/b45f5d21cc5c468a9c40252d09d22278 [2022-02-10 22:54:25,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:54:25,743 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:54:25,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:54:25,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:54:25,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:54:25,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:25,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c4408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25, skipping insertion in model container [2022-02-10 22:54:25,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:25,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:54:25,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:54:25,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-02-10 22:54:25,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:54:25,930 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:54:25,950 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-02-10 22:54:25,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:54:25,964 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:54:25,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25 WrapperNode [2022-02-10 22:54:25,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:54:25,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:54:25,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:54:25,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:54:25,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:25,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:26,018 INFO L137 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 257 [2022-02-10 22:54:26,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:54:26,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:54:26,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:54:26,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:54:26,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:26,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:26,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:26,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:26,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:26,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:26,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:26,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:54:26,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:54:26,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:54:26,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:54:26,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (1/1) ... [2022-02-10 22:54:26,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:54:26,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:54:26,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 22:54:26,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 22:54:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:54:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:54:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:54:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:54:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:54:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:54:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:54:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:54:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 22:54:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 22:54:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:54:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-10 22:54:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-10 22:54:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-10 22:54:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:54:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:54:26,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:54:26,111 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:54:26,170 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:54:26,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:54:26,451 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:54:26,514 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:54:26,514 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-02-10 22:54:26,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:54:26 BoogieIcfgContainer [2022-02-10 22:54:26,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:54:26,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:54:26,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:54:26,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:54:26,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:54:25" (1/3) ... [2022-02-10 22:54:26,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb3f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:54:26, skipping insertion in model container [2022-02-10 22:54:26,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:54:25" (2/3) ... [2022-02-10 22:54:26,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb3f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:54:26, skipping insertion in model container [2022-02-10 22:54:26,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:54:26" (3/3) ... [2022-02-10 22:54:26,521 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2022-02-10 22:54:26,524 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:54:26,524 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:54:26,524 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:54:26,524 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:54:26,573 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,574 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,574 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,574 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,574 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,574 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,575 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,575 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,575 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,575 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,575 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,575 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,575 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,575 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,576 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,576 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,576 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,576 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,576 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,576 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,576 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,577 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,577 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,577 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,577 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,577 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,577 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,578 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,578 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,578 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,578 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,578 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,578 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,578 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,578 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,578 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,579 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,579 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,579 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,579 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,579 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,579 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,579 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,580 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,580 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,580 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,580 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,580 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,580 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,580 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,580 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,580 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,581 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,581 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,581 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,581 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,581 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,582 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,582 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,582 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,582 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,582 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,582 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,582 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,583 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,583 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,583 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,583 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,583 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,583 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,583 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,584 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,584 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,584 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,584 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,584 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,584 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,584 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,584 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,585 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,585 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,585 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,585 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,585 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,585 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,585 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,586 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,586 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,586 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,586 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,604 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,605 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,605 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,605 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,605 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,605 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,605 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,605 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,605 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,606 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,606 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,606 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,610 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,611 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,611 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,611 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,611 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,611 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,611 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,612 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,612 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,612 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,612 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,612 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,612 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,612 WARN L322 ript$VariableManager]: TermVariable |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:54:26,615 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 22:54:26,656 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:54:26,661 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:54:26,661 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-10 22:54:26,671 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 215 places, 223 transitions, 470 flow [2022-02-10 22:54:26,917 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:26,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-10 22:54:26,988 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:26,989 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:26,989 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:26,996 INFO L85 PathProgramCache]: Analyzing trace with hash -559935921, now seen corresponding path program 1 times [2022-02-10 22:54:27,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:27,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057010660] [2022-02-10 22:54:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:27,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:27,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:54:27,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:27,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057010660] [2022-02-10 22:54:27,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057010660] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:27,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:27,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:54:27,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300757264] [2022-02-10 22:54:27,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:27,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:54:27,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:27,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:54:27,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:54:27,333 INFO L87 Difference]: Start difference. First operand has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 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 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:27,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:27,450 INFO L93 Difference]: Finished difference Result 6644 states and 23512 transitions. [2022-02-10 22:54:27,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:54:27,452 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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 159 [2022-02-10 22:54:27,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:27,507 INFO L225 Difference]: With dead ends: 6644 [2022-02-10 22:54:27,507 INFO L226 Difference]: Without dead ends: 6638 [2022-02-10 22:54:27,508 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:54:27,511 INFO L934 BasicCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:27,512 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:54:27,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6638 states. [2022-02-10 22:54:27,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6638 to 6638. [2022-02-10 22:54:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 6637 states have (on average 3.5416603887298477) internal successors, (23506), 6637 states have internal predecessors, (23506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:27,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 23506 transitions. [2022-02-10 22:54:27,793 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 23506 transitions. Word has length 159 [2022-02-10 22:54:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:27,795 INFO L470 AbstractCegarLoop]: Abstraction has 6638 states and 23506 transitions. [2022-02-10 22:54:27,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 23506 transitions. [2022-02-10 22:54:27,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-10 22:54:27,817 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:27,817 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:27,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:54:27,818 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:27,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:27,820 INFO L85 PathProgramCache]: Analyzing trace with hash 864045723, now seen corresponding path program 1 times [2022-02-10 22:54:27,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:27,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143381270] [2022-02-10 22:54:27,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:27,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:54:28,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:28,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143381270] [2022-02-10 22:54:28,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143381270] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:28,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:28,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:54:28,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453859054] [2022-02-10 22:54:28,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:28,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:54:28,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:28,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:54:28,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:54:28,067 INFO L87 Difference]: Start difference. First operand 6638 states and 23506 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:28,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:28,274 INFO L93 Difference]: Finished difference Result 7452 states and 25924 transitions. [2022-02-10 22:54:28,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:54:28,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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 168 [2022-02-10 22:54:28,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:28,310 INFO L225 Difference]: With dead ends: 7452 [2022-02-10 22:54:28,310 INFO L226 Difference]: Without dead ends: 6644 [2022-02-10 22:54:28,313 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:54:28,314 INFO L934 BasicCegarLoop]: 171 mSDtfsCounter, 148 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:28,315 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 615 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:54:28,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6644 states. [2022-02-10 22:54:28,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6644 to 6639. [2022-02-10 22:54:28,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6639 states, 6638 states have (on average 3.5412774932208495) internal successors, (23507), 6638 states have internal predecessors, (23507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:28,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6639 states to 6639 states and 23507 transitions. [2022-02-10 22:54:28,536 INFO L78 Accepts]: Start accepts. Automaton has 6639 states and 23507 transitions. Word has length 168 [2022-02-10 22:54:28,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:28,539 INFO L470 AbstractCegarLoop]: Abstraction has 6639 states and 23507 transitions. [2022-02-10 22:54:28,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:28,539 INFO L276 IsEmpty]: Start isEmpty. Operand 6639 states and 23507 transitions. [2022-02-10 22:54:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-10 22:54:28,558 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:28,559 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:28,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:54:28,560 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:28,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:28,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1179599516, now seen corresponding path program 1 times [2022-02-10 22:54:28,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:28,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177336791] [2022-02-10 22:54:28,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:28,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:54:28,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:28,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177336791] [2022-02-10 22:54:28,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177336791] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:28,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:28,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-10 22:54:28,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524860770] [2022-02-10 22:54:28,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:28,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:54:28,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:28,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:54:28,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 22:54:28,760 INFO L87 Difference]: Start difference. First operand 6639 states and 23507 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:28,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:28,936 INFO L93 Difference]: Finished difference Result 8112 states and 28002 transitions. [2022-02-10 22:54:28,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:54:28,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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 175 [2022-02-10 22:54:28,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:28,969 INFO L225 Difference]: With dead ends: 8112 [2022-02-10 22:54:28,969 INFO L226 Difference]: Without dead ends: 6645 [2022-02-10 22:54:28,970 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-10 22:54:28,974 INFO L934 BasicCegarLoop]: 171 mSDtfsCounter, 410 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:28,975 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 554 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:54:28,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6645 states. [2022-02-10 22:54:29,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6645 to 6640. [2022-02-10 22:54:29,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6640 states, 6639 states have (on average 3.5408947130591955) internal successors, (23508), 6639 states have internal predecessors, (23508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:29,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6640 states to 6640 states and 23508 transitions. [2022-02-10 22:54:29,121 INFO L78 Accepts]: Start accepts. Automaton has 6640 states and 23508 transitions. Word has length 175 [2022-02-10 22:54:29,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:29,122 INFO L470 AbstractCegarLoop]: Abstraction has 6640 states and 23508 transitions. [2022-02-10 22:54:29,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:29,122 INFO L276 IsEmpty]: Start isEmpty. Operand 6640 states and 23508 transitions. [2022-02-10 22:54:29,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:29,204 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:29,204 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:29,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 22:54:29,205 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:29,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:29,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1706711251, now seen corresponding path program 1 times [2022-02-10 22:54:29,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:29,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668914923] [2022-02-10 22:54:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:29,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:30,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:30,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668914923] [2022-02-10 22:54:30,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668914923] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:30,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:30,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:30,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174034304] [2022-02-10 22:54:30,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:30,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:30,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:30,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:30,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:30,227 INFO L87 Difference]: Start difference. First operand 6640 states and 23508 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:31,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:31,030 INFO L93 Difference]: Finished difference Result 14626 states and 52262 transitions. [2022-02-10 22:54:31,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:54:31,032 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:31,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:31,088 INFO L225 Difference]: With dead ends: 14626 [2022-02-10 22:54:31,088 INFO L226 Difference]: Without dead ends: 14476 [2022-02-10 22:54:31,088 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:54:31,093 INFO L934 BasicCegarLoop]: 296 mSDtfsCounter, 605 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:31,094 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 2864 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:54:31,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14476 states. [2022-02-10 22:54:31,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14476 to 7934. [2022-02-10 22:54:31,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7934 states, 7933 states have (on average 3.4975419135257786) internal successors, (27746), 7933 states have internal predecessors, (27746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7934 states to 7934 states and 27746 transitions. [2022-02-10 22:54:31,370 INFO L78 Accepts]: Start accepts. Automaton has 7934 states and 27746 transitions. Word has length 182 [2022-02-10 22:54:31,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:31,372 INFO L470 AbstractCegarLoop]: Abstraction has 7934 states and 27746 transitions. [2022-02-10 22:54:31,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:31,372 INFO L276 IsEmpty]: Start isEmpty. Operand 7934 states and 27746 transitions. [2022-02-10 22:54:31,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:31,393 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:31,393 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:31,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 22:54:31,394 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:31,395 INFO L85 PathProgramCache]: Analyzing trace with hash -243046637, now seen corresponding path program 2 times [2022-02-10 22:54:31,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:31,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619229892] [2022-02-10 22:54:31,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:31,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:32,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:32,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:32,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619229892] [2022-02-10 22:54:32,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619229892] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:32,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:32,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:32,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204838167] [2022-02-10 22:54:32,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:32,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:32,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:32,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:32,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:32,059 INFO L87 Difference]: Start difference. First operand 7934 states and 27746 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:32,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:32,623 INFO L93 Difference]: Finished difference Result 14222 states and 50838 transitions. [2022-02-10 22:54:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:54:32,624 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:32,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:32,672 INFO L225 Difference]: With dead ends: 14222 [2022-02-10 22:54:32,672 INFO L226 Difference]: Without dead ends: 14072 [2022-02-10 22:54:32,672 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:32,675 INFO L934 BasicCegarLoop]: 285 mSDtfsCounter, 463 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:32,675 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2721 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:54:32,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14072 states. [2022-02-10 22:54:32,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14072 to 8942. [2022-02-10 22:54:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8941 states have (on average 3.486858293255788) internal successors, (31176), 8941 states have internal predecessors, (31176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:32,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 31176 transitions. [2022-02-10 22:54:32,952 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 31176 transitions. Word has length 182 [2022-02-10 22:54:32,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:32,952 INFO L470 AbstractCegarLoop]: Abstraction has 8942 states and 31176 transitions. [2022-02-10 22:54:32,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:32,953 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 31176 transitions. [2022-02-10 22:54:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:32,983 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:32,983 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:32,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:54:32,983 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:32,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:32,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1793467055, now seen corresponding path program 3 times [2022-02-10 22:54:32,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:32,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505505895] [2022-02-10 22:54:32,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:32,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:33,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:33,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:33,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505505895] [2022-02-10 22:54:33,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505505895] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:33,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:33,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:33,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585483854] [2022-02-10 22:54:33,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:33,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:33,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:33,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:33,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:33,630 INFO L87 Difference]: Start difference. First operand 8942 states and 31176 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:34,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:34,254 INFO L93 Difference]: Finished difference Result 15685 states and 55678 transitions. [2022-02-10 22:54:34,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:54:34,254 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:34,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:34,299 INFO L225 Difference]: With dead ends: 15685 [2022-02-10 22:54:34,299 INFO L226 Difference]: Without dead ends: 15535 [2022-02-10 22:54:34,299 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:54:34,300 INFO L934 BasicCegarLoop]: 289 mSDtfsCounter, 645 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:34,301 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 2755 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:54:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15535 states. [2022-02-10 22:54:34,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15535 to 9208. [2022-02-10 22:54:34,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:34,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-02-10 22:54:34,524 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-02-10 22:54:34,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:34,525 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-02-10 22:54:34,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:34,525 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-02-10 22:54:34,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:34,544 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:34,544 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:34,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 22:54:34,544 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:34,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:34,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1762356665, now seen corresponding path program 4 times [2022-02-10 22:54:34,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:34,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613245150] [2022-02-10 22:54:34,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:34,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:35,130 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:35,130 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613245150] [2022-02-10 22:54:35,130 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613245150] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:35,130 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:35,130 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:35,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322924526] [2022-02-10 22:54:35,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:35,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:35,131 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:35,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:35,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:35,131 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:35,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:35,727 INFO L93 Difference]: Finished difference Result 15244 states and 54483 transitions. [2022-02-10 22:54:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:54:35,728 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:35,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:35,774 INFO L225 Difference]: With dead ends: 15244 [2022-02-10 22:54:35,774 INFO L226 Difference]: Without dead ends: 15094 [2022-02-10 22:54:35,774 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:54:35,775 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 577 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:35,775 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 2576 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:54:35,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2022-02-10 22:54:35,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 9208. [2022-02-10 22:54:35,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:36,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-02-10 22:54:36,023 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-02-10 22:54:36,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:36,024 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-02-10 22:54:36,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:36,024 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-02-10 22:54:36,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:36,047 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:36,047 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:36,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 22:54:36,047 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:36,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:36,048 INFO L85 PathProgramCache]: Analyzing trace with hash -988028945, now seen corresponding path program 5 times [2022-02-10 22:54:36,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:36,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205042491] [2022-02-10 22:54:36,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:36,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:36,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:36,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205042491] [2022-02-10 22:54:36,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205042491] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:36,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:36,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:36,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088471395] [2022-02-10 22:54:36,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:36,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:36,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:36,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:36,649 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:37,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:37,310 INFO L93 Difference]: Finished difference Result 15244 states and 54483 transitions. [2022-02-10 22:54:37,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:54:37,311 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:37,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:37,354 INFO L225 Difference]: With dead ends: 15244 [2022-02-10 22:54:37,354 INFO L226 Difference]: Without dead ends: 15094 [2022-02-10 22:54:37,355 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:37,355 INFO L934 BasicCegarLoop]: 286 mSDtfsCounter, 539 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:37,355 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 2571 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:54:37,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2022-02-10 22:54:37,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 9208. [2022-02-10 22:54:37,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:37,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-02-10 22:54:37,587 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-02-10 22:54:37,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:37,587 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-02-10 22:54:37,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:37,587 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-02-10 22:54:37,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:37,604 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:37,605 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:37,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 22:54:37,605 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:37,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:37,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1830217275, now seen corresponding path program 6 times [2022-02-10 22:54:37,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:37,607 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442507225] [2022-02-10 22:54:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:37,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:38,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:38,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:38,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442507225] [2022-02-10 22:54:38,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442507225] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:38,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:38,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:38,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140698372] [2022-02-10 22:54:38,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:38,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:38,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:38,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:38,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:38,208 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:38,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:38,858 INFO L93 Difference]: Finished difference Result 16354 states and 58195 transitions. [2022-02-10 22:54:38,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:54:38,858 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:38,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:38,905 INFO L225 Difference]: With dead ends: 16354 [2022-02-10 22:54:38,905 INFO L226 Difference]: Without dead ends: 16204 [2022-02-10 22:54:38,906 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:54:38,906 INFO L934 BasicCegarLoop]: 295 mSDtfsCounter, 503 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:38,906 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 2582 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:54:38,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16204 states. [2022-02-10 22:54:39,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16204 to 9320. [2022-02-10 22:54:39,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9320 states, 9319 states have (on average 3.495546732482026) internal successors, (32575), 9319 states have internal predecessors, (32575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:39,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 32575 transitions. [2022-02-10 22:54:39,169 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 32575 transitions. Word has length 182 [2022-02-10 22:54:39,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:39,169 INFO L470 AbstractCegarLoop]: Abstraction has 9320 states and 32575 transitions. [2022-02-10 22:54:39,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 32575 transitions. [2022-02-10 22:54:39,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:39,186 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:39,186 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:39,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 22:54:39,186 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:39,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:39,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1356367291, now seen corresponding path program 7 times [2022-02-10 22:54:39,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:39,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352090153] [2022-02-10 22:54:39,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:39,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:39,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:39,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:39,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352090153] [2022-02-10 22:54:39,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352090153] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:39,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:39,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:39,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576511716] [2022-02-10 22:54:39,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:39,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:39,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:39,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:39,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:39,629 INFO L87 Difference]: Start difference. First operand 9320 states and 32575 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:40,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:40,255 INFO L93 Difference]: Finished difference Result 15118 states and 54397 transitions. [2022-02-10 22:54:40,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:54:40,255 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:40,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:40,295 INFO L225 Difference]: With dead ends: 15118 [2022-02-10 22:54:40,296 INFO L226 Difference]: Without dead ends: 14896 [2022-02-10 22:54:40,296 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:40,296 INFO L934 BasicCegarLoop]: 276 mSDtfsCounter, 350 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:40,298 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 2988 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:54:40,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14896 states. [2022-02-10 22:54:40,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14896 to 9504. [2022-02-10 22:54:40,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9504 states, 9503 states have (on average 3.500473534673261) internal successors, (33265), 9503 states have internal predecessors, (33265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:40,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9504 states to 9504 states and 33265 transitions. [2022-02-10 22:54:40,506 INFO L78 Accepts]: Start accepts. Automaton has 9504 states and 33265 transitions. Word has length 182 [2022-02-10 22:54:40,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:40,506 INFO L470 AbstractCegarLoop]: Abstraction has 9504 states and 33265 transitions. [2022-02-10 22:54:40,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:40,507 INFO L276 IsEmpty]: Start isEmpty. Operand 9504 states and 33265 transitions. [2022-02-10 22:54:40,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:40,523 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:40,524 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:40,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-10 22:54:40,524 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:40,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:40,525 INFO L85 PathProgramCache]: Analyzing trace with hash 2099447355, now seen corresponding path program 8 times [2022-02-10 22:54:40,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:40,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020810282] [2022-02-10 22:54:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:40,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:41,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:41,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:41,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020810282] [2022-02-10 22:54:41,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020810282] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:41,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:41,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:41,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289032020] [2022-02-10 22:54:41,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:41,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:41,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:41,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:41,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:41,017 INFO L87 Difference]: Start difference. First operand 9504 states and 33265 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:41,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:41,566 INFO L93 Difference]: Finished difference Result 16088 states and 57607 transitions. [2022-02-10 22:54:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:54:41,567 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:41,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:41,608 INFO L225 Difference]: With dead ends: 16088 [2022-02-10 22:54:41,608 INFO L226 Difference]: Without dead ends: 15938 [2022-02-10 22:54:41,609 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:54:41,609 INFO L934 BasicCegarLoop]: 282 mSDtfsCounter, 537 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:41,609 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 2245 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:41,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15938 states. [2022-02-10 22:54:41,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15938 to 9568. [2022-02-10 22:54:41,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:41,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-02-10 22:54:41,818 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-02-10 22:54:41,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:41,818 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-02-10 22:54:41,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:41,818 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-02-10 22:54:41,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:41,835 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:41,835 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:41,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-10 22:54:41,835 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:41,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:41,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1387220523, now seen corresponding path program 9 times [2022-02-10 22:54:41,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:41,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36013271] [2022-02-10 22:54:41,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:41,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:42,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:42,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:42,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36013271] [2022-02-10 22:54:42,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36013271] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:42,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:42,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:42,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862760187] [2022-02-10 22:54:42,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:42,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:42,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:42,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:42,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:42,350 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:43,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:43,026 INFO L93 Difference]: Finished difference Result 15772 states and 56589 transitions. [2022-02-10 22:54:43,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:54:43,027 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:43,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:43,070 INFO L225 Difference]: With dead ends: 15772 [2022-02-10 22:54:43,070 INFO L226 Difference]: Without dead ends: 15622 [2022-02-10 22:54:43,070 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-02-10 22:54:43,071 INFO L934 BasicCegarLoop]: 281 mSDtfsCounter, 458 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:43,071 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2624 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:54:43,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2022-02-10 22:54:43,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 9568. [2022-02-10 22:54:43,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:43,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-02-10 22:54:43,294 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-02-10 22:54:43,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:43,294 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-02-10 22:54:43,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:43,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-02-10 22:54:43,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:43,311 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:43,311 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:43,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-10 22:54:43,312 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:43,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:43,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1183078429, now seen corresponding path program 10 times [2022-02-10 22:54:43,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:43,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215000523] [2022-02-10 22:54:43,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:43,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:43,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:43,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215000523] [2022-02-10 22:54:43,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215000523] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:43,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:43,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:43,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494016508] [2022-02-10 22:54:43,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:43,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:43,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:43,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:43,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:43,846 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:44,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:44,403 INFO L93 Difference]: Finished difference Result 15732 states and 56439 transitions. [2022-02-10 22:54:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-10 22:54:44,403 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:44,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:44,443 INFO L225 Difference]: With dead ends: 15732 [2022-02-10 22:54:44,443 INFO L226 Difference]: Without dead ends: 15582 [2022-02-10 22:54:44,444 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:44,444 INFO L934 BasicCegarLoop]: 281 mSDtfsCounter, 451 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:44,444 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2539 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:44,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15582 states. [2022-02-10 22:54:44,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15582 to 9568. [2022-02-10 22:54:44,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:44,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-02-10 22:54:44,650 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-02-10 22:54:44,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:44,650 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-02-10 22:54:44,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:44,651 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-02-10 22:54:44,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:44,669 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:44,669 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:44,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-10 22:54:44,670 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:44,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:44,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1817055227, now seen corresponding path program 11 times [2022-02-10 22:54:44,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:44,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75999068] [2022-02-10 22:54:44,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:44,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:45,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:45,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75999068] [2022-02-10 22:54:45,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75999068] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:45,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:45,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:45,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008811516] [2022-02-10 22:54:45,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:45,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:45,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:45,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:45,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:45,065 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:45,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:45,488 INFO L93 Difference]: Finished difference Result 14869 states and 53304 transitions. [2022-02-10 22:54:45,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:45,489 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:45,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:45,625 INFO L225 Difference]: With dead ends: 14869 [2022-02-10 22:54:45,625 INFO L226 Difference]: Without dead ends: 14719 [2022-02-10 22:54:45,625 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:45,625 INFO L934 BasicCegarLoop]: 259 mSDtfsCounter, 343 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:45,626 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2386 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:45,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14719 states. [2022-02-10 22:54:45,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14719 to 9792. [2022-02-10 22:54:45,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:45,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-02-10 22:54:45,800 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-02-10 22:54:45,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:45,800 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-02-10 22:54:45,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:45,800 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-02-10 22:54:45,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:45,817 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:45,817 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:45,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-10 22:54:45,817 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:45,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:45,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2063128839, now seen corresponding path program 12 times [2022-02-10 22:54:45,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:45,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566587354] [2022-02-10 22:54:45,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:45,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:46,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:46,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566587354] [2022-02-10 22:54:46,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566587354] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:46,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:46,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:46,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022722328] [2022-02-10 22:54:46,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:46,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:46,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:46,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:46,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:46,175 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:46,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:46,636 INFO L93 Difference]: Finished difference Result 14770 states and 53097 transitions. [2022-02-10 22:54:46,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:46,637 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:46,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:46,675 INFO L225 Difference]: With dead ends: 14770 [2022-02-10 22:54:46,675 INFO L226 Difference]: Without dead ends: 14548 [2022-02-10 22:54:46,677 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:46,677 INFO L934 BasicCegarLoop]: 257 mSDtfsCounter, 489 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:46,677 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 2262 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:46,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14548 states. [2022-02-10 22:54:46,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14548 to 9792. [2022-02-10 22:54:46,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:46,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-02-10 22:54:46,875 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-02-10 22:54:46,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:46,875 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-02-10 22:54:46,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:46,876 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-02-10 22:54:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:46,892 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:46,892 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:46,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 22:54:46,892 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:46,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:46,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1986285691, now seen corresponding path program 13 times [2022-02-10 22:54:46,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:46,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827906121] [2022-02-10 22:54:46,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:46,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:47,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:47,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:47,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827906121] [2022-02-10 22:54:47,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827906121] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:47,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:47,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:47,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466586966] [2022-02-10 22:54:47,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:47,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:47,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:47,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:47,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:47,245 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:47,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:47,644 INFO L93 Difference]: Finished difference Result 15499 states and 55404 transitions. [2022-02-10 22:54:47,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:47,645 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:47,685 INFO L225 Difference]: With dead ends: 15499 [2022-02-10 22:54:47,685 INFO L226 Difference]: Without dead ends: 15349 [2022-02-10 22:54:47,685 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:47,686 INFO L934 BasicCegarLoop]: 266 mSDtfsCounter, 407 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:47,686 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2704 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:54:47,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15349 states. [2022-02-10 22:54:47,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15349 to 9897. [2022-02-10 22:54:47,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9897 states, 9896 states have (on average 3.5198059822150363) internal successors, (34832), 9896 states have internal predecessors, (34832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:47,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9897 states to 9897 states and 34832 transitions. [2022-02-10 22:54:47,972 INFO L78 Accepts]: Start accepts. Automaton has 9897 states and 34832 transitions. Word has length 182 [2022-02-10 22:54:47,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:47,973 INFO L470 AbstractCegarLoop]: Abstraction has 9897 states and 34832 transitions. [2022-02-10 22:54:47,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:47,973 INFO L276 IsEmpty]: Start isEmpty. Operand 9897 states and 34832 transitions. [2022-02-10 22:54:47,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:47,991 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:47,991 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:47,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-10 22:54:47,991 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:47,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:47,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1909051591, now seen corresponding path program 14 times [2022-02-10 22:54:47,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:47,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471720159] [2022-02-10 22:54:47,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:47,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:48,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:48,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:48,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471720159] [2022-02-10 22:54:48,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471720159] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:48,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:48,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:48,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158006647] [2022-02-10 22:54:48,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:48,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:48,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:48,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:48,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:48,488 INFO L87 Difference]: Start difference. First operand 9897 states and 34832 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:49,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:49,029 INFO L93 Difference]: Finished difference Result 15868 states and 56775 transitions. [2022-02-10 22:54:49,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:49,030 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:49,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:49,072 INFO L225 Difference]: With dead ends: 15868 [2022-02-10 22:54:49,072 INFO L226 Difference]: Without dead ends: 15718 [2022-02-10 22:54:49,073 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:49,073 INFO L934 BasicCegarLoop]: 265 mSDtfsCounter, 458 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:49,073 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2504 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:49,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15718 states. [2022-02-10 22:54:49,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15718 to 9792. [2022-02-10 22:54:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:49,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-02-10 22:54:49,316 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-02-10 22:54:49,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:49,317 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-02-10 22:54:49,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-02-10 22:54:49,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:49,335 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:49,335 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:49,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-10 22:54:49,336 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:49,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:49,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1735467003, now seen corresponding path program 15 times [2022-02-10 22:54:49,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:49,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458698435] [2022-02-10 22:54:49,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:49,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:49,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:49,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:49,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458698435] [2022-02-10 22:54:49,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458698435] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:49,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:49,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:49,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548510449] [2022-02-10 22:54:49,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:49,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:49,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:49,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:49,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:49,756 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:50,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:50,218 INFO L93 Difference]: Finished difference Result 15130 states and 54471 transitions. [2022-02-10 22:54:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:50,219 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:50,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:50,259 INFO L225 Difference]: With dead ends: 15130 [2022-02-10 22:54:50,259 INFO L226 Difference]: Without dead ends: 14908 [2022-02-10 22:54:50,259 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:50,260 INFO L934 BasicCegarLoop]: 262 mSDtfsCounter, 374 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:50,260 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 2317 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:50,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14908 states. [2022-02-10 22:54:50,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14908 to 9824. [2022-02-10 22:54:50,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9824 states, 9823 states have (on average 3.512674335742645) internal successors, (34505), 9823 states have internal predecessors, (34505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:50,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9824 states to 9824 states and 34505 transitions. [2022-02-10 22:54:50,462 INFO L78 Accepts]: Start accepts. Automaton has 9824 states and 34505 transitions. Word has length 182 [2022-02-10 22:54:50,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:50,463 INFO L470 AbstractCegarLoop]: Abstraction has 9824 states and 34505 transitions. [2022-02-10 22:54:50,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand 9824 states and 34505 transitions. [2022-02-10 22:54:50,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:50,479 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:50,479 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:50,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-10 22:54:50,480 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:50,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:50,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1722757253, now seen corresponding path program 16 times [2022-02-10 22:54:50,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:50,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579991062] [2022-02-10 22:54:50,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:50,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:50,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:50,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:50,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579991062] [2022-02-10 22:54:50,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579991062] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:50,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:50,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:50,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019852939] [2022-02-10 22:54:50,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:50,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:50,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:50,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:50,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:50,893 INFO L87 Difference]: Start difference. First operand 9824 states and 34505 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:51,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:51,334 INFO L93 Difference]: Finished difference Result 15598 states and 56025 transitions. [2022-02-10 22:54:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:51,339 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:51,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:51,387 INFO L225 Difference]: With dead ends: 15598 [2022-02-10 22:54:51,388 INFO L226 Difference]: Without dead ends: 15448 [2022-02-10 22:54:51,388 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:51,388 INFO L934 BasicCegarLoop]: 263 mSDtfsCounter, 528 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:51,388 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 1932 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15448 states. [2022-02-10 22:54:51,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15448 to 9792. [2022-02-10 22:54:51,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:51,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-02-10 22:54:51,698 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-02-10 22:54:51,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:51,698 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-02-10 22:54:51,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:51,699 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-02-10 22:54:51,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:51,717 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:51,717 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:51,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-10 22:54:51,718 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:51,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:51,719 INFO L85 PathProgramCache]: Analyzing trace with hash 977182485, now seen corresponding path program 17 times [2022-02-10 22:54:51,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:51,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025511654] [2022-02-10 22:54:51,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:51,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:52,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:52,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025511654] [2022-02-10 22:54:52,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025511654] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:52,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:52,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:52,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397146215] [2022-02-10 22:54:52,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:52,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:52,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:52,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:52,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:52,194 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:52,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:52,666 INFO L93 Difference]: Finished difference Result 15282 states and 54634 transitions. [2022-02-10 22:54:52,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:52,667 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:52,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:52,702 INFO L225 Difference]: With dead ends: 15282 [2022-02-10 22:54:52,702 INFO L226 Difference]: Without dead ends: 15132 [2022-02-10 22:54:52,702 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:52,704 INFO L934 BasicCegarLoop]: 266 mSDtfsCounter, 352 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:52,704 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 2515 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:52,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15132 states. [2022-02-10 22:54:52,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15132 to 9582. [2022-02-10 22:54:52,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9582 states, 9581 states have (on average 3.5040183696900113) internal successors, (33572), 9581 states have internal predecessors, (33572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 33572 transitions. [2022-02-10 22:54:52,877 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 33572 transitions. Word has length 182 [2022-02-10 22:54:52,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:52,877 INFO L470 AbstractCegarLoop]: Abstraction has 9582 states and 33572 transitions. [2022-02-10 22:54:52,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:52,878 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 33572 transitions. [2022-02-10 22:54:52,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:52,892 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:52,893 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:52,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-10 22:54:52,893 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:52,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:52,893 INFO L85 PathProgramCache]: Analyzing trace with hash -2088446317, now seen corresponding path program 18 times [2022-02-10 22:54:52,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:52,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766752715] [2022-02-10 22:54:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:52,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:53,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:53,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766752715] [2022-02-10 22:54:53,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766752715] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:53,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:53,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:53,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198699668] [2022-02-10 22:54:53,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:53,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:53,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:53,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:53,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:53,378 INFO L87 Difference]: Start difference. First operand 9582 states and 33572 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:53,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:53,898 INFO L93 Difference]: Finished difference Result 14888 states and 53562 transitions. [2022-02-10 22:54:53,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:53,899 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:53,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:53,935 INFO L225 Difference]: With dead ends: 14888 [2022-02-10 22:54:53,935 INFO L226 Difference]: Without dead ends: 14666 [2022-02-10 22:54:53,935 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2022-02-10 22:54:53,936 INFO L934 BasicCegarLoop]: 260 mSDtfsCounter, 353 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:53,936 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 2686 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:53,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14666 states. [2022-02-10 22:54:54,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14666 to 9518. [2022-02-10 22:54:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9518 states, 9517 states have (on average 3.499001786277188) internal successors, (33300), 9517 states have internal predecessors, (33300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:54,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9518 states to 9518 states and 33300 transitions. [2022-02-10 22:54:54,125 INFO L78 Accepts]: Start accepts. Automaton has 9518 states and 33300 transitions. Word has length 182 [2022-02-10 22:54:54,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:54,125 INFO L470 AbstractCegarLoop]: Abstraction has 9518 states and 33300 transitions. [2022-02-10 22:54:54,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:54,125 INFO L276 IsEmpty]: Start isEmpty. Operand 9518 states and 33300 transitions. [2022-02-10 22:54:54,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:54,141 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:54,141 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:54,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-10 22:54:54,142 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:54,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:54,142 INFO L85 PathProgramCache]: Analyzing trace with hash -266734529, now seen corresponding path program 19 times [2022-02-10 22:54:54,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:54,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692863363] [2022-02-10 22:54:54,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:54,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:54,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:54,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692863363] [2022-02-10 22:54:54,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692863363] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:54,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:54,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:54:54,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412763934] [2022-02-10 22:54:54,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:54,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:54:54,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:54,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:54:54,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:54:54,196 INFO L87 Difference]: Start difference. First operand 9518 states and 33300 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:54,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:54,242 INFO L93 Difference]: Finished difference Result 9244 states and 32213 transitions. [2022-02-10 22:54:54,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:54:54,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:54,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:54,262 INFO L225 Difference]: With dead ends: 9244 [2022-02-10 22:54:54,262 INFO L226 Difference]: Without dead ends: 9244 [2022-02-10 22:54:54,262 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:54:54,263 INFO L934 BasicCegarLoop]: 179 mSDtfsCounter, 20 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:54,263 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 272 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:54:54,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9244 states. [2022-02-10 22:54:54,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9244 to 9244. [2022-02-10 22:54:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 9243 states have (on average 3.485123877528941) internal successors, (32213), 9243 states have internal predecessors, (32213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:54,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 32213 transitions. [2022-02-10 22:54:54,394 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 32213 transitions. Word has length 182 [2022-02-10 22:54:54,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:54,394 INFO L470 AbstractCegarLoop]: Abstraction has 9244 states and 32213 transitions. [2022-02-10 22:54:54,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:54,394 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 32213 transitions. [2022-02-10 22:54:54,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:54,409 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:54,409 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:54,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-10 22:54:54,409 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:54,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:54,410 INFO L85 PathProgramCache]: Analyzing trace with hash 994364243, now seen corresponding path program 20 times [2022-02-10 22:54:54,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:54,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090594792] [2022-02-10 22:54:54,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:54,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:54,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:54,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090594792] [2022-02-10 22:54:54,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090594792] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:54,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:54,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 22:54:54,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205066223] [2022-02-10 22:54:54,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:54,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 22:54:54,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:54,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 22:54:54,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:54:54,461 INFO L87 Difference]: Start difference. First operand 9244 states and 32213 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:54,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:54,590 INFO L93 Difference]: Finished difference Result 8392 states and 28671 transitions. [2022-02-10 22:54:54,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 22:54:54,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:54,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:54,608 INFO L225 Difference]: With dead ends: 8392 [2022-02-10 22:54:54,608 INFO L226 Difference]: Without dead ends: 8392 [2022-02-10 22:54:54,609 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 22:54:54,609 INFO L934 BasicCegarLoop]: 178 mSDtfsCounter, 38 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:54,610 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 243 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:54:54,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8392 states. [2022-02-10 22:54:54,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8392 to 8392. [2022-02-10 22:54:54,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8392 states, 8391 states have (on average 3.4168752234537005) internal successors, (28671), 8391 states have internal predecessors, (28671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:54,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8392 states to 8392 states and 28671 transitions. [2022-02-10 22:54:54,740 INFO L78 Accepts]: Start accepts. Automaton has 8392 states and 28671 transitions. Word has length 182 [2022-02-10 22:54:54,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:54,741 INFO L470 AbstractCegarLoop]: Abstraction has 8392 states and 28671 transitions. [2022-02-10 22:54:54,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:54,741 INFO L276 IsEmpty]: Start isEmpty. Operand 8392 states and 28671 transitions. [2022-02-10 22:54:54,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:54,755 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:54,755 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:54,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-10 22:54:54,756 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:54,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:54,756 INFO L85 PathProgramCache]: Analyzing trace with hash 418727083, now seen corresponding path program 21 times [2022-02-10 22:54:54,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:54,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983709008] [2022-02-10 22:54:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:54,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:55,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:55,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983709008] [2022-02-10 22:54:55,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983709008] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:55,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:55,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:55,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151070810] [2022-02-10 22:54:55,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:55,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:55,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:55,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:55,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:55,214 INFO L87 Difference]: Start difference. First operand 8392 states and 28671 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:55,580 INFO L93 Difference]: Finished difference Result 10386 states and 35499 transitions. [2022-02-10 22:54:55,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:55,580 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:55,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:55,602 INFO L225 Difference]: With dead ends: 10386 [2022-02-10 22:54:55,602 INFO L226 Difference]: Without dead ends: 10236 [2022-02-10 22:54:55,603 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:54:55,603 INFO L934 BasicCegarLoop]: 235 mSDtfsCounter, 291 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:55,603 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2377 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:54:55,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10236 states. [2022-02-10 22:54:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10236 to 8560. [2022-02-10 22:54:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8559 states have (on average 3.4192078513845074) internal successors, (29265), 8559 states have internal predecessors, (29265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:55,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 29265 transitions. [2022-02-10 22:54:55,732 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 29265 transitions. Word has length 182 [2022-02-10 22:54:55,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:55,733 INFO L470 AbstractCegarLoop]: Abstraction has 8560 states and 29265 transitions. [2022-02-10 22:54:55,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:55,733 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 29265 transitions. [2022-02-10 22:54:55,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:55,746 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:55,746 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:55,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-10 22:54:55,746 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:55,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:55,746 INFO L85 PathProgramCache]: Analyzing trace with hash 833510313, now seen corresponding path program 22 times [2022-02-10 22:54:55,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:55,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781069018] [2022-02-10 22:54:55,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:55,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:56,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:56,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781069018] [2022-02-10 22:54:56,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781069018] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:56,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:56,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:56,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151137674] [2022-02-10 22:54:56,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:56,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:56,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:56,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:56,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:56,105 INFO L87 Difference]: Start difference. First operand 8560 states and 29265 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:56,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:56,436 INFO L93 Difference]: Finished difference Result 10404 states and 35598 transitions. [2022-02-10 22:54:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:56,436 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:56,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:56,461 INFO L225 Difference]: With dead ends: 10404 [2022-02-10 22:54:56,462 INFO L226 Difference]: Without dead ends: 10218 [2022-02-10 22:54:56,462 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:54:56,462 INFO L934 BasicCegarLoop]: 236 mSDtfsCounter, 476 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:56,463 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1989 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:54:56,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2022-02-10 22:54:56,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 8536. [2022-02-10 22:54:56,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.4192149970708847) internal successors, (29183), 8535 states have internal predecessors, (29183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:56,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29183 transitions. [2022-02-10 22:54:56,636 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29183 transitions. Word has length 182 [2022-02-10 22:54:56,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:56,636 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29183 transitions. [2022-02-10 22:54:56,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:56,637 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29183 transitions. [2022-02-10 22:54:56,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:56,651 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:56,651 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:56,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-10 22:54:56,651 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:56,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:56,651 INFO L85 PathProgramCache]: Analyzing trace with hash -700910965, now seen corresponding path program 23 times [2022-02-10 22:54:56,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:56,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117077492] [2022-02-10 22:54:56,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:56,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:57,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:57,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:57,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117077492] [2022-02-10 22:54:57,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117077492] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:57,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:57,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:57,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556608345] [2022-02-10 22:54:57,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:57,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:57,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:57,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:57,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:57,104 INFO L87 Difference]: Start difference. First operand 8536 states and 29183 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:57,505 INFO L93 Difference]: Finished difference Result 10566 states and 36099 transitions. [2022-02-10 22:54:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:57,505 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:57,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:57,531 INFO L225 Difference]: With dead ends: 10566 [2022-02-10 22:54:57,531 INFO L226 Difference]: Without dead ends: 10416 [2022-02-10 22:54:57,531 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:54:57,532 INFO L934 BasicCegarLoop]: 242 mSDtfsCounter, 279 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:57,532 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2699 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10416 states. [2022-02-10 22:54:57,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10416 to 8566. [2022-02-10 22:54:57,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8566 states, 8565 states have (on average 3.422416812609457) internal successors, (29313), 8565 states have internal predecessors, (29313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:57,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8566 states to 8566 states and 29313 transitions. [2022-02-10 22:54:57,684 INFO L78 Accepts]: Start accepts. Automaton has 8566 states and 29313 transitions. Word has length 182 [2022-02-10 22:54:57,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:57,684 INFO L470 AbstractCegarLoop]: Abstraction has 8566 states and 29313 transitions. [2022-02-10 22:54:57,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand 8566 states and 29313 transitions. [2022-02-10 22:54:57,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:57,698 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:57,698 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:57,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-10 22:54:57,698 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:57,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:57,699 INFO L85 PathProgramCache]: Analyzing trace with hash -301280951, now seen corresponding path program 24 times [2022-02-10 22:54:57,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:57,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167056057] [2022-02-10 22:54:57,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:57,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:58,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:58,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:58,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167056057] [2022-02-10 22:54:58,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167056057] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:58,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:58,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:58,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215894358] [2022-02-10 22:54:58,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:58,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:58,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:58,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:58,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:58,201 INFO L87 Difference]: Start difference. First operand 8566 states and 29313 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:58,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:58,543 INFO L93 Difference]: Finished difference Result 11160 states and 38145 transitions. [2022-02-10 22:54:58,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:58,543 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:58,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:58,588 INFO L225 Difference]: With dead ends: 11160 [2022-02-10 22:54:58,588 INFO L226 Difference]: Without dead ends: 11010 [2022-02-10 22:54:58,588 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:54:58,589 INFO L934 BasicCegarLoop]: 244 mSDtfsCounter, 514 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:58,589 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 2045 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:54:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-02-10 22:54:58,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8536. [2022-02-10 22:54:58,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.4192149970708847) internal successors, (29183), 8535 states have internal predecessors, (29183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:58,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29183 transitions. [2022-02-10 22:54:58,751 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29183 transitions. Word has length 182 [2022-02-10 22:54:58,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:58,752 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29183 transitions. [2022-02-10 22:54:58,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:58,752 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29183 transitions. [2022-02-10 22:54:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:58,769 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:58,769 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:58,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-10 22:54:58,769 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:58,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:58,770 INFO L85 PathProgramCache]: Analyzing trace with hash -951729653, now seen corresponding path program 25 times [2022-02-10 22:54:58,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:58,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061313752] [2022-02-10 22:54:58,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:58,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:54:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:54:59,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:54:59,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061313752] [2022-02-10 22:54:59,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061313752] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:54:59,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:54:59,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:54:59,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073024376] [2022-02-10 22:54:59,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:54:59,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:54:59,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:54:59,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:54:59,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:54:59,224 INFO L87 Difference]: Start difference. First operand 8536 states and 29183 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:54:59,622 INFO L93 Difference]: Finished difference Result 10584 states and 36285 transitions. [2022-02-10 22:54:59,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:54:59,623 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:54:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:54:59,646 INFO L225 Difference]: With dead ends: 10584 [2022-02-10 22:54:59,646 INFO L226 Difference]: Without dead ends: 10398 [2022-02-10 22:54:59,647 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:54:59,647 INFO L934 BasicCegarLoop]: 244 mSDtfsCounter, 281 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:54:59,647 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 2495 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:54:59,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2022-02-10 22:54:59,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 8552. [2022-02-10 22:54:59,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8551 states have (on average 3.4203017190971816) internal successors, (29247), 8551 states have internal predecessors, (29247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 29247 transitions. [2022-02-10 22:54:59,809 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 29247 transitions. Word has length 182 [2022-02-10 22:54:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:54:59,809 INFO L470 AbstractCegarLoop]: Abstraction has 8552 states and 29247 transitions. [2022-02-10 22:54:59,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:54:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 29247 transitions. [2022-02-10 22:54:59,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:54:59,825 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:54:59,825 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:54:59,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-10 22:54:59,825 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:54:59,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:54:59,825 INFO L85 PathProgramCache]: Analyzing trace with hash -114986613, now seen corresponding path program 26 times [2022-02-10 22:54:59,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:54:59,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152754848] [2022-02-10 22:54:59,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:54:59,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:54:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:00,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:00,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152754848] [2022-02-10 22:55:00,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152754848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:00,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:00,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:00,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097759588] [2022-02-10 22:55:00,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:00,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:00,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:00,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:00,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:00,223 INFO L87 Difference]: Start difference. First operand 8552 states and 29247 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:00,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:00,575 INFO L93 Difference]: Finished difference Result 11160 states and 38220 transitions. [2022-02-10 22:55:00,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:00,575 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:00,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:00,601 INFO L225 Difference]: With dead ends: 11160 [2022-02-10 22:55:00,601 INFO L226 Difference]: Without dead ends: 11010 [2022-02-10 22:55:00,602 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:00,604 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 469 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:00,604 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 2313 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:00,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-02-10 22:55:00,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8528. [2022-02-10 22:55:00,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4179664594816463) internal successors, (29145), 8527 states have internal predecessors, (29145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:00,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29145 transitions. [2022-02-10 22:55:00,762 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29145 transitions. Word has length 182 [2022-02-10 22:55:00,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:00,762 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29145 transitions. [2022-02-10 22:55:00,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:00,762 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29145 transitions. [2022-02-10 22:55:00,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:00,776 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:00,776 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:00,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-10 22:55:00,777 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:00,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:00,777 INFO L85 PathProgramCache]: Analyzing trace with hash -922837013, now seen corresponding path program 27 times [2022-02-10 22:55:00,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:00,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365447243] [2022-02-10 22:55:00,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:00,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:01,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:01,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365447243] [2022-02-10 22:55:01,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365447243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:01,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:01,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:01,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199867998] [2022-02-10 22:55:01,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:01,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:01,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:01,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:01,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:01,171 INFO L87 Difference]: Start difference. First operand 8528 states and 29145 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:01,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:01,533 INFO L93 Difference]: Finished difference Result 10698 states and 36474 transitions. [2022-02-10 22:55:01,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:01,533 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:01,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:01,562 INFO L225 Difference]: With dead ends: 10698 [2022-02-10 22:55:01,563 INFO L226 Difference]: Without dead ends: 10548 [2022-02-10 22:55:01,563 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:01,575 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 444 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:01,575 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 2424 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:01,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-02-10 22:55:01,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 8588. [2022-02-10 22:55:01,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 3.420868755094911) internal successors, (29375), 8587 states have internal predecessors, (29375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:01,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 29375 transitions. [2022-02-10 22:55:01,824 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 29375 transitions. Word has length 182 [2022-02-10 22:55:01,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:01,824 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 29375 transitions. [2022-02-10 22:55:01,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 29375 transitions. [2022-02-10 22:55:01,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:01,839 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:01,839 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:01,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-10 22:55:01,839 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:01,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:01,840 INFO L85 PathProgramCache]: Analyzing trace with hash -523206999, now seen corresponding path program 28 times [2022-02-10 22:55:01,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:01,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822035372] [2022-02-10 22:55:01,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:01,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:02,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:02,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822035372] [2022-02-10 22:55:02,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822035372] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:02,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:02,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:02,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500195301] [2022-02-10 22:55:02,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:02,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:02,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:02,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:02,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:02,304 INFO L87 Difference]: Start difference. First operand 8588 states and 29375 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:02,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:02,751 INFO L93 Difference]: Finished difference Result 11382 states and 38790 transitions. [2022-02-10 22:55:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:02,751 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:02,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:02,776 INFO L225 Difference]: With dead ends: 11382 [2022-02-10 22:55:02,777 INFO L226 Difference]: Without dead ends: 11232 [2022-02-10 22:55:02,777 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:02,777 INFO L934 BasicCegarLoop]: 249 mSDtfsCounter, 446 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:02,777 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 2426 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:02,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11232 states. [2022-02-10 22:55:02,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11232 to 8558. [2022-02-10 22:55:02,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8557 states have (on average 3.4176697440691832) internal successors, (29245), 8557 states have internal predecessors, (29245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:02,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 29245 transitions. [2022-02-10 22:55:02,935 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 29245 transitions. Word has length 182 [2022-02-10 22:55:02,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:02,936 INFO L470 AbstractCegarLoop]: Abstraction has 8558 states and 29245 transitions. [2022-02-10 22:55:02,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:02,936 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 29245 transitions. [2022-02-10 22:55:02,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:02,950 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:02,950 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:02,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-10 22:55:02,950 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:02,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:02,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2124387601, now seen corresponding path program 29 times [2022-02-10 22:55:02,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:02,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613877322] [2022-02-10 22:55:02,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:02,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:03,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:03,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613877322] [2022-02-10 22:55:03,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613877322] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:03,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:03,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:03,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222620755] [2022-02-10 22:55:03,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:03,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:03,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:03,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:03,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:03,360 INFO L87 Difference]: Start difference. First operand 8558 states and 29245 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:03,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:03,753 INFO L93 Difference]: Finished difference Result 11484 states and 39204 transitions. [2022-02-10 22:55:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:03,753 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:03,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:03,778 INFO L225 Difference]: With dead ends: 11484 [2022-02-10 22:55:03,779 INFO L226 Difference]: Without dead ends: 11334 [2022-02-10 22:55:03,780 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:03,780 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 457 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:03,780 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2216 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:03,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-02-10 22:55:03,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8528. [2022-02-10 22:55:03,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4179664594816463) internal successors, (29145), 8527 states have internal predecessors, (29145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29145 transitions. [2022-02-10 22:55:03,939 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29145 transitions. Word has length 182 [2022-02-10 22:55:03,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:03,939 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29145 transitions. [2022-02-10 22:55:03,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:03,939 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29145 transitions. [2022-02-10 22:55:03,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:03,953 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:03,953 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:03,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-10 22:55:03,954 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:03,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:03,954 INFO L85 PathProgramCache]: Analyzing trace with hash 306501481, now seen corresponding path program 30 times [2022-02-10 22:55:03,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:03,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358727629] [2022-02-10 22:55:03,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:03,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:04,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:04,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:04,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358727629] [2022-02-10 22:55:04,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358727629] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:04,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:04,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:04,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59810472] [2022-02-10 22:55:04,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:04,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:04,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:04,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:04,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:04,313 INFO L87 Difference]: Start difference. First operand 8528 states and 29145 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:04,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:04,775 INFO L93 Difference]: Finished difference Result 10608 states and 36399 transitions. [2022-02-10 22:55:04,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:04,775 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:04,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:04,802 INFO L225 Difference]: With dead ends: 10608 [2022-02-10 22:55:04,802 INFO L226 Difference]: Without dead ends: 10422 [2022-02-10 22:55:04,802 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:04,803 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 318 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:04,803 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 2365 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:04,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10422 states. [2022-02-10 22:55:04,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10422 to 8560. [2022-02-10 22:55:04,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8559 states have (on average 3.419675195700432) internal successors, (29269), 8559 states have internal predecessors, (29269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:04,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 29269 transitions. [2022-02-10 22:55:04,972 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 29269 transitions. Word has length 182 [2022-02-10 22:55:04,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:04,972 INFO L470 AbstractCegarLoop]: Abstraction has 8560 states and 29269 transitions. [2022-02-10 22:55:04,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:04,972 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 29269 transitions. [2022-02-10 22:55:04,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:04,989 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:04,989 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:04,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-10 22:55:04,990 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:04,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:04,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1143244521, now seen corresponding path program 31 times [2022-02-10 22:55:04,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:04,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437024487] [2022-02-10 22:55:04,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:04,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:05,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:05,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:05,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437024487] [2022-02-10 22:55:05,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437024487] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:05,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:05,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:05,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900630449] [2022-02-10 22:55:05,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:05,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:05,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:05,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:05,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:05,607 INFO L87 Difference]: Start difference. First operand 8560 states and 29269 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:06,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:06,023 INFO L93 Difference]: Finished difference Result 11256 states and 38580 transitions. [2022-02-10 22:55:06,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:06,024 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:06,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:06,051 INFO L225 Difference]: With dead ends: 11256 [2022-02-10 22:55:06,051 INFO L226 Difference]: Without dead ends: 11106 [2022-02-10 22:55:06,051 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:06,052 INFO L934 BasicCegarLoop]: 248 mSDtfsCounter, 358 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:06,052 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 2787 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:06,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11106 states. [2022-02-10 22:55:06,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11106 to 8544. [2022-02-10 22:55:06,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8544 states, 8543 states have (on average 3.418588317921105) internal successors, (29205), 8543 states have internal predecessors, (29205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:06,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8544 states to 8544 states and 29205 transitions. [2022-02-10 22:55:06,216 INFO L78 Accepts]: Start accepts. Automaton has 8544 states and 29205 transitions. Word has length 182 [2022-02-10 22:55:06,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:06,217 INFO L470 AbstractCegarLoop]: Abstraction has 8544 states and 29205 transitions. [2022-02-10 22:55:06,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:06,218 INFO L276 IsEmpty]: Start isEmpty. Operand 8544 states and 29205 transitions. [2022-02-10 22:55:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:06,232 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:06,232 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:06,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-10 22:55:06,232 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:06,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:06,233 INFO L85 PathProgramCache]: Analyzing trace with hash -690422513, now seen corresponding path program 32 times [2022-02-10 22:55:06,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:06,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786431078] [2022-02-10 22:55:06,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:06,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:06,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:06,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:06,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786431078] [2022-02-10 22:55:06,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786431078] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:06,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:06,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:06,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891878222] [2022-02-10 22:55:06,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:06,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:06,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:06,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:06,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:06,667 INFO L87 Difference]: Start difference. First operand 8544 states and 29205 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:07,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:07,118 INFO L93 Difference]: Finished difference Result 11358 states and 38919 transitions. [2022-02-10 22:55:07,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:07,118 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:07,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:07,144 INFO L225 Difference]: With dead ends: 11358 [2022-02-10 22:55:07,144 INFO L226 Difference]: Without dead ends: 11208 [2022-02-10 22:55:07,144 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:07,145 INFO L934 BasicCegarLoop]: 250 mSDtfsCounter, 357 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:07,145 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 2490 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:07,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11208 states. [2022-02-10 22:55:07,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11208 to 8520. [2022-02-10 22:55:07,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.417654654302148) internal successors, (29115), 8519 states have internal predecessors, (29115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:07,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29115 transitions. [2022-02-10 22:55:07,295 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29115 transitions. Word has length 182 [2022-02-10 22:55:07,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:07,295 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29115 transitions. [2022-02-10 22:55:07,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:07,295 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29115 transitions. [2022-02-10 22:55:07,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:07,309 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:07,309 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:07,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-10 22:55:07,309 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:07,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:07,310 INFO L85 PathProgramCache]: Analyzing trace with hash 501633739, now seen corresponding path program 33 times [2022-02-10 22:55:07,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:07,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399266431] [2022-02-10 22:55:07,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:07,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:07,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:07,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:07,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399266431] [2022-02-10 22:55:07,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399266431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:07,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:07,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:07,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521596921] [2022-02-10 22:55:07,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:07,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:07,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:07,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:07,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:07,690 INFO L87 Difference]: Start difference. First operand 8520 states and 29115 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:08,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:08,043 INFO L93 Difference]: Finished difference Result 10690 states and 36444 transitions. [2022-02-10 22:55:08,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:08,044 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:08,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:08,067 INFO L225 Difference]: With dead ends: 10690 [2022-02-10 22:55:08,068 INFO L226 Difference]: Without dead ends: 10540 [2022-02-10 22:55:08,068 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:08,068 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 407 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:08,068 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2354 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:08,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10540 states. [2022-02-10 22:55:08,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10540 to 8820. [2022-02-10 22:55:08,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8820 states, 8819 states have (on average 3.409683637600635) internal successors, (30070), 8819 states have internal predecessors, (30070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8820 states to 8820 states and 30070 transitions. [2022-02-10 22:55:08,230 INFO L78 Accepts]: Start accepts. Automaton has 8820 states and 30070 transitions. Word has length 182 [2022-02-10 22:55:08,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:08,231 INFO L470 AbstractCegarLoop]: Abstraction has 8820 states and 30070 transitions. [2022-02-10 22:55:08,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:08,231 INFO L276 IsEmpty]: Start isEmpty. Operand 8820 states and 30070 transitions. [2022-02-10 22:55:08,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:08,246 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:08,247 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:08,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-10 22:55:08,247 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:08,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:08,247 INFO L85 PathProgramCache]: Analyzing trace with hash 901263753, now seen corresponding path program 34 times [2022-02-10 22:55:08,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:08,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982604239] [2022-02-10 22:55:08,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:08,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:08,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:08,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:08,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982604239] [2022-02-10 22:55:08,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982604239] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:08,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:08,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:08,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205046886] [2022-02-10 22:55:08,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:08,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:08,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:08,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:08,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:08,610 INFO L87 Difference]: Start difference. First operand 8820 states and 30070 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:08,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:08,972 INFO L93 Difference]: Finished difference Result 11550 states and 39376 transitions. [2022-02-10 22:55:08,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:08,972 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:09,000 INFO L225 Difference]: With dead ends: 11550 [2022-02-10 22:55:09,000 INFO L226 Difference]: Without dead ends: 11400 [2022-02-10 22:55:09,000 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:09,000 INFO L934 BasicCegarLoop]: 249 mSDtfsCounter, 437 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:09,001 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2583 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:09,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11400 states. [2022-02-10 22:55:09,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11400 to 8790. [2022-02-10 22:55:09,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8790 states, 8789 states have (on average 3.406530890886335) internal successors, (29940), 8789 states have internal predecessors, (29940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:09,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8790 states to 8790 states and 29940 transitions. [2022-02-10 22:55:09,285 INFO L78 Accepts]: Start accepts. Automaton has 8790 states and 29940 transitions. Word has length 182 [2022-02-10 22:55:09,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:09,285 INFO L470 AbstractCegarLoop]: Abstraction has 8790 states and 29940 transitions. [2022-02-10 22:55:09,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:09,285 INFO L276 IsEmpty]: Start isEmpty. Operand 8790 states and 29940 transitions. [2022-02-10 22:55:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:09,299 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:09,306 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:09,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-10 22:55:09,306 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:09,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash -746108943, now seen corresponding path program 35 times [2022-02-10 22:55:09,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:09,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879295418] [2022-02-10 22:55:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:09,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:09,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:09,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:09,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879295418] [2022-02-10 22:55:09,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879295418] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:09,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:09,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:09,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785002488] [2022-02-10 22:55:09,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:09,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:09,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:09,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:09,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:09,767 INFO L87 Difference]: Start difference. First operand 8790 states and 29940 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:10,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:10,248 INFO L93 Difference]: Finished difference Result 11685 states and 39866 transitions. [2022-02-10 22:55:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:10,249 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:10,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:10,276 INFO L225 Difference]: With dead ends: 11685 [2022-02-10 22:55:10,276 INFO L226 Difference]: Without dead ends: 11535 [2022-02-10 22:55:10,277 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:10,277 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 468 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:10,277 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [468 Valid, 2252 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:10,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2022-02-10 22:55:10,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 8760. [2022-02-10 22:55:10,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8760 states, 8759 states have (on average 3.406781596072611) internal successors, (29840), 8759 states have internal predecessors, (29840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:10,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8760 states to 8760 states and 29840 transitions. [2022-02-10 22:55:10,450 INFO L78 Accepts]: Start accepts. Automaton has 8760 states and 29840 transitions. Word has length 182 [2022-02-10 22:55:10,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:10,450 INFO L470 AbstractCegarLoop]: Abstraction has 8760 states and 29840 transitions. [2022-02-10 22:55:10,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:10,450 INFO L276 IsEmpty]: Start isEmpty. Operand 8760 states and 29840 transitions. [2022-02-10 22:55:10,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:10,465 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:10,465 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:10,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-10 22:55:10,466 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:10,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:10,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1833174183, now seen corresponding path program 36 times [2022-02-10 22:55:10,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:10,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185867960] [2022-02-10 22:55:10,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:10,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:10,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:10,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:10,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185867960] [2022-02-10 22:55:10,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185867960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:10,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:10,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:10,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400225594] [2022-02-10 22:55:10,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:10,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:10,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:10,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:10,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:10,895 INFO L87 Difference]: Start difference. First operand 8760 states and 29840 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:11,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:11,318 INFO L93 Difference]: Finished difference Result 11454 states and 39104 transitions. [2022-02-10 22:55:11,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:11,318 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:11,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:11,346 INFO L225 Difference]: With dead ends: 11454 [2022-02-10 22:55:11,346 INFO L226 Difference]: Without dead ends: 11304 [2022-02-10 22:55:11,347 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:11,347 INFO L934 BasicCegarLoop]: 252 mSDtfsCounter, 364 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:11,347 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 2555 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:11,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11304 states. [2022-02-10 22:55:11,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11304 to 8520. [2022-02-10 22:55:11,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.417654654302148) internal successors, (29115), 8519 states have internal predecessors, (29115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:11,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29115 transitions. [2022-02-10 22:55:11,520 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29115 transitions. Word has length 182 [2022-02-10 22:55:11,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:11,520 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29115 transitions. [2022-02-10 22:55:11,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29115 transitions. [2022-02-10 22:55:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:11,535 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:11,536 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:11,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-10 22:55:11,536 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:11,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:11,536 INFO L85 PathProgramCache]: Analyzing trace with hash 371204619, now seen corresponding path program 37 times [2022-02-10 22:55:11,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:11,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080218390] [2022-02-10 22:55:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:11,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:11,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:11,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:11,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080218390] [2022-02-10 22:55:11,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080218390] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:11,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:11,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:11,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096544556] [2022-02-10 22:55:11,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:11,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:11,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:11,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:11,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:11,940 INFO L87 Difference]: Start difference. First operand 8520 states and 29115 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:12,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:12,293 INFO L93 Difference]: Finished difference Result 10600 states and 36369 transitions. [2022-02-10 22:55:12,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:12,293 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:12,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:12,318 INFO L225 Difference]: With dead ends: 10600 [2022-02-10 22:55:12,319 INFO L226 Difference]: Without dead ends: 10414 [2022-02-10 22:55:12,319 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:12,319 INFO L934 BasicCegarLoop]: 245 mSDtfsCounter, 375 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:12,319 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 2154 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10414 states. [2022-02-10 22:55:12,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10414 to 8600. [2022-02-10 22:55:12,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8599 states have (on average 3.421211768810327) internal successors, (29419), 8599 states have internal predecessors, (29419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:12,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 29419 transitions. [2022-02-10 22:55:12,483 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 29419 transitions. Word has length 182 [2022-02-10 22:55:12,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:12,484 INFO L470 AbstractCegarLoop]: Abstraction has 8600 states and 29419 transitions. [2022-02-10 22:55:12,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:12,484 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 29419 transitions. [2022-02-10 22:55:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:12,499 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:12,499 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:12,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-10 22:55:12,500 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:12,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:12,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1207947659, now seen corresponding path program 38 times [2022-02-10 22:55:12,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:12,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005292130] [2022-02-10 22:55:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:12,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:13,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:13,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:13,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005292130] [2022-02-10 22:55:13,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005292130] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:13,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:13,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:13,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369580067] [2022-02-10 22:55:13,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:13,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:13,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:13,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:13,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:13,106 INFO L87 Difference]: Start difference. First operand 8600 states and 29419 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:13,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:13,573 INFO L93 Difference]: Finished difference Result 11396 states and 39060 transitions. [2022-02-10 22:55:13,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:13,574 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:13,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:13,600 INFO L225 Difference]: With dead ends: 11396 [2022-02-10 22:55:13,600 INFO L226 Difference]: Without dead ends: 11246 [2022-02-10 22:55:13,600 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:13,601 INFO L934 BasicCegarLoop]: 248 mSDtfsCounter, 482 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:13,601 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 2410 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11246 states. [2022-02-10 22:55:13,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11246 to 8584. [2022-02-10 22:55:13,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 3.4201328206920656) internal successors, (29355), 8583 states have internal predecessors, (29355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:13,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 29355 transitions. [2022-02-10 22:55:13,769 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 29355 transitions. Word has length 182 [2022-02-10 22:55:13,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:13,769 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 29355 transitions. [2022-02-10 22:55:13,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:13,769 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 29355 transitions. [2022-02-10 22:55:13,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:13,784 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:13,784 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:13,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-10 22:55:13,785 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:13,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:13,785 INFO L85 PathProgramCache]: Analyzing trace with hash -625719375, now seen corresponding path program 39 times [2022-02-10 22:55:13,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:13,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926127810] [2022-02-10 22:55:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:13,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:14,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:14,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:14,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926127810] [2022-02-10 22:55:14,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926127810] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:14,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:14,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:14,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367624623] [2022-02-10 22:55:14,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:14,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:14,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:14,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:14,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:14,329 INFO L87 Difference]: Start difference. First operand 8584 states and 29355 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:14,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:14,797 INFO L93 Difference]: Finished difference Result 11545 states and 39541 transitions. [2022-02-10 22:55:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:14,798 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:14,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:14,825 INFO L225 Difference]: With dead ends: 11545 [2022-02-10 22:55:14,825 INFO L226 Difference]: Without dead ends: 11395 [2022-02-10 22:55:14,826 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:14,826 INFO L934 BasicCegarLoop]: 250 mSDtfsCounter, 488 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:14,826 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2322 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:14,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11395 states. [2022-02-10 22:55:14,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11395 to 8568. [2022-02-10 22:55:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8568 states, 8567 states have (on average 3.4195167503209993) internal successors, (29295), 8567 states have internal predecessors, (29295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:15,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 29295 transitions. [2022-02-10 22:55:15,009 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 29295 transitions. Word has length 182 [2022-02-10 22:55:15,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:15,009 INFO L470 AbstractCegarLoop]: Abstraction has 8568 states and 29295 transitions. [2022-02-10 22:55:15,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:15,009 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 29295 transitions. [2022-02-10 22:55:15,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:15,026 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:15,027 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:15,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-10 22:55:15,027 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:15,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:15,027 INFO L85 PathProgramCache]: Analyzing trace with hash 473406569, now seen corresponding path program 40 times [2022-02-10 22:55:15,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:15,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527805928] [2022-02-10 22:55:15,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:15,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:15,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:15,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:15,496 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527805928] [2022-02-10 22:55:15,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527805928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:15,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:15,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:15,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290339979] [2022-02-10 22:55:15,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:15,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:15,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:15,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:15,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:15,497 INFO L87 Difference]: Start difference. First operand 8568 states and 29295 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:15,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:15,885 INFO L93 Difference]: Finished difference Result 11322 states and 38784 transitions. [2022-02-10 22:55:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:15,886 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:15,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:15,911 INFO L225 Difference]: With dead ends: 11322 [2022-02-10 22:55:15,911 INFO L226 Difference]: Without dead ends: 11172 [2022-02-10 22:55:15,912 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:15,912 INFO L934 BasicCegarLoop]: 250 mSDtfsCounter, 384 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:15,912 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 2464 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:15,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11172 states. [2022-02-10 22:55:16,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11172 to 8424. [2022-02-10 22:55:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8424 states, 8423 states have (on average 3.4190905853021487) internal successors, (28799), 8423 states have internal predecessors, (28799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:16,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8424 states to 8424 states and 28799 transitions. [2022-02-10 22:55:16,066 INFO L78 Accepts]: Start accepts. Automaton has 8424 states and 28799 transitions. Word has length 182 [2022-02-10 22:55:16,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:16,067 INFO L470 AbstractCegarLoop]: Abstraction has 8424 states and 28799 transitions. [2022-02-10 22:55:16,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:16,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8424 states and 28799 transitions. [2022-02-10 22:55:16,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:16,080 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:16,081 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:16,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-10 22:55:16,081 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:16,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:16,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1916046689, now seen corresponding path program 41 times [2022-02-10 22:55:16,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:16,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369426078] [2022-02-10 22:55:16,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:16,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:16,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:16,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369426078] [2022-02-10 22:55:16,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369426078] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:16,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:16,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:16,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894493602] [2022-02-10 22:55:16,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:16,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:16,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:16,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:16,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:16,507 INFO L87 Difference]: Start difference. First operand 8424 states and 28799 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:16,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:16,848 INFO L93 Difference]: Finished difference Result 10282 states and 35153 transitions. [2022-02-10 22:55:16,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:16,848 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:16,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:16,872 INFO L225 Difference]: With dead ends: 10282 [2022-02-10 22:55:16,872 INFO L226 Difference]: Without dead ends: 10132 [2022-02-10 22:55:16,872 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:16,872 INFO L934 BasicCegarLoop]: 224 mSDtfsCounter, 505 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:16,873 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 1919 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10132 states. [2022-02-10 22:55:17,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10132 to 8528. [2022-02-10 22:55:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.420781048434385) internal successors, (29169), 8527 states have internal predecessors, (29169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:17,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29169 transitions. [2022-02-10 22:55:17,079 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29169 transitions. Word has length 182 [2022-02-10 22:55:17,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:17,079 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29169 transitions. [2022-02-10 22:55:17,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:17,079 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29169 transitions. [2022-02-10 22:55:17,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:17,093 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:17,093 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:17,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-10 22:55:17,093 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:17,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:17,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1501263459, now seen corresponding path program 42 times [2022-02-10 22:55:17,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:17,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508088581] [2022-02-10 22:55:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:17,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:17,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:17,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:17,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508088581] [2022-02-10 22:55:17,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508088581] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:17,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:17,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:17,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110971379] [2022-02-10 22:55:17,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:17,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:17,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:17,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:17,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:17,541 INFO L87 Difference]: Start difference. First operand 8528 states and 29169 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:17,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:17,902 INFO L93 Difference]: Finished difference Result 10300 states and 35252 transitions. [2022-02-10 22:55:17,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:17,902 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:17,926 INFO L225 Difference]: With dead ends: 10300 [2022-02-10 22:55:17,926 INFO L226 Difference]: Without dead ends: 10114 [2022-02-10 22:55:17,927 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:17,928 INFO L934 BasicCegarLoop]: 225 mSDtfsCounter, 451 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:17,928 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 1869 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:17,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2022-02-10 22:55:18,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 8504. [2022-02-10 22:55:18,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8503 states have (on average 3.4207926614136186) internal successors, (29087), 8503 states have internal predecessors, (29087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 29087 transitions. [2022-02-10 22:55:18,100 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 29087 transitions. Word has length 182 [2022-02-10 22:55:18,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:18,100 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 29087 transitions. [2022-02-10 22:55:18,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:18,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 29087 transitions. [2022-02-10 22:55:18,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:18,114 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:18,114 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:18,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-10 22:55:18,115 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:18,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:18,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1259282559, now seen corresponding path program 43 times [2022-02-10 22:55:18,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:18,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078036017] [2022-02-10 22:55:18,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:18,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:18,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:18,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078036017] [2022-02-10 22:55:18,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078036017] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:18,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:18,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:18,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22611403] [2022-02-10 22:55:18,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:18,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:18,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:18,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:18,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:18,549 INFO L87 Difference]: Start difference. First operand 8504 states and 29087 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:18,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:18,862 INFO L93 Difference]: Finished difference Result 10462 states and 35753 transitions. [2022-02-10 22:55:18,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:18,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:18,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:18,887 INFO L225 Difference]: With dead ends: 10462 [2022-02-10 22:55:18,887 INFO L226 Difference]: Without dead ends: 10312 [2022-02-10 22:55:18,887 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:18,887 INFO L934 BasicCegarLoop]: 231 mSDtfsCounter, 331 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:18,888 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2247 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:18,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10312 states. [2022-02-10 22:55:19,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10312 to 8534. [2022-02-10 22:55:19,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8534 states, 8533 states have (on average 3.4240009375366225) internal successors, (29217), 8533 states have internal predecessors, (29217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:19,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8534 states to 8534 states and 29217 transitions. [2022-02-10 22:55:19,050 INFO L78 Accepts]: Start accepts. Automaton has 8534 states and 29217 transitions. Word has length 182 [2022-02-10 22:55:19,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:19,050 INFO L470 AbstractCegarLoop]: Abstraction has 8534 states and 29217 transitions. [2022-02-10 22:55:19,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:19,050 INFO L276 IsEmpty]: Start isEmpty. Operand 8534 states and 29217 transitions. [2022-02-10 22:55:19,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:19,064 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:19,065 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:19,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-10 22:55:19,065 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:19,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:19,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1658912573, now seen corresponding path program 44 times [2022-02-10 22:55:19,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:19,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710447149] [2022-02-10 22:55:19,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:19,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:19,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:19,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710447149] [2022-02-10 22:55:19,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710447149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:19,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:19,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:19,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368492030] [2022-02-10 22:55:19,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:19,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:19,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:19,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:19,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:19,450 INFO L87 Difference]: Start difference. First operand 8534 states and 29217 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:19,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:19,799 INFO L93 Difference]: Finished difference Result 11056 states and 37799 transitions. [2022-02-10 22:55:19,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:19,800 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:19,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:19,825 INFO L225 Difference]: With dead ends: 11056 [2022-02-10 22:55:19,826 INFO L226 Difference]: Without dead ends: 10906 [2022-02-10 22:55:19,826 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:19,826 INFO L934 BasicCegarLoop]: 233 mSDtfsCounter, 370 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:19,826 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 2135 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:19,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-02-10 22:55:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 8504. [2022-02-10 22:55:19,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8503 states have (on average 3.4207926614136186) internal successors, (29087), 8503 states have internal predecessors, (29087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:19,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 29087 transitions. [2022-02-10 22:55:19,991 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 29087 transitions. Word has length 182 [2022-02-10 22:55:19,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:19,991 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 29087 transitions. [2022-02-10 22:55:19,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:19,991 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 29087 transitions. [2022-02-10 22:55:20,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:20,006 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:20,006 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:20,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-10 22:55:20,007 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:20,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:20,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1008463871, now seen corresponding path program 45 times [2022-02-10 22:55:20,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:20,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395250279] [2022-02-10 22:55:20,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:20,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:20,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:20,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395250279] [2022-02-10 22:55:20,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395250279] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:20,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:20,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:20,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285779504] [2022-02-10 22:55:20,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:20,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:20,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:20,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:20,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:20,378 INFO L87 Difference]: Start difference. First operand 8504 states and 29087 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:20,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:20,703 INFO L93 Difference]: Finished difference Result 10480 states and 35939 transitions. [2022-02-10 22:55:20,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:20,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:20,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:20,772 INFO L225 Difference]: With dead ends: 10480 [2022-02-10 22:55:20,772 INFO L226 Difference]: Without dead ends: 10294 [2022-02-10 22:55:20,773 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:20,773 INFO L934 BasicCegarLoop]: 233 mSDtfsCounter, 363 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:20,773 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 1866 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:20,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10294 states. [2022-02-10 22:55:20,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10294 to 8520. [2022-02-10 22:55:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.4218805024063856) internal successors, (29151), 8519 states have internal predecessors, (29151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29151 transitions. [2022-02-10 22:55:20,916 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29151 transitions. Word has length 182 [2022-02-10 22:55:20,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:20,917 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29151 transitions. [2022-02-10 22:55:20,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:20,917 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29151 transitions. [2022-02-10 22:55:20,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:20,931 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:20,931 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:20,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-10 22:55:20,931 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:20,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:20,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1845206911, now seen corresponding path program 46 times [2022-02-10 22:55:20,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:20,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501764295] [2022-02-10 22:55:20,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:20,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:21,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:21,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501764295] [2022-02-10 22:55:21,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501764295] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:21,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:21,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:21,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582016050] [2022-02-10 22:55:21,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:21,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:21,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:21,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:21,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:21,365 INFO L87 Difference]: Start difference. First operand 8520 states and 29151 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:21,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:21,722 INFO L93 Difference]: Finished difference Result 11056 states and 37874 transitions. [2022-02-10 22:55:21,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:21,723 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:21,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:21,748 INFO L225 Difference]: With dead ends: 11056 [2022-02-10 22:55:21,748 INFO L226 Difference]: Without dead ends: 10906 [2022-02-10 22:55:21,749 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:21,749 INFO L934 BasicCegarLoop]: 234 mSDtfsCounter, 432 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:21,750 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 2271 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:21,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-02-10 22:55:21,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 8496. [2022-02-10 22:55:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8495 states have (on average 3.4195409064155387) internal successors, (29049), 8495 states have internal predecessors, (29049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 29049 transitions. [2022-02-10 22:55:21,904 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 29049 transitions. Word has length 182 [2022-02-10 22:55:21,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:21,904 INFO L470 AbstractCegarLoop]: Abstraction has 8496 states and 29049 transitions. [2022-02-10 22:55:21,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:21,904 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 29049 transitions. [2022-02-10 22:55:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:21,919 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:21,919 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:21,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-10 22:55:21,919 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:21,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:21,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1037356511, now seen corresponding path program 47 times [2022-02-10 22:55:21,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:21,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763818445] [2022-02-10 22:55:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:21,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:22,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:22,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:22,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763818445] [2022-02-10 22:55:22,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763818445] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:22,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:22,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:22,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441488180] [2022-02-10 22:55:22,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:22,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:22,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:22,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:22,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:22,367 INFO L87 Difference]: Start difference. First operand 8496 states and 29049 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:22,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:22,707 INFO L93 Difference]: Finished difference Result 10594 states and 36128 transitions. [2022-02-10 22:55:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:22,707 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:22,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:22,732 INFO L225 Difference]: With dead ends: 10594 [2022-02-10 22:55:22,732 INFO L226 Difference]: Without dead ends: 10444 [2022-02-10 22:55:22,732 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:22,733 INFO L934 BasicCegarLoop]: 234 mSDtfsCounter, 470 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:22,733 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [470 Valid, 1992 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:22,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10444 states. [2022-02-10 22:55:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10444 to 8556. [2022-02-10 22:55:22,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8556 states, 8555 states have (on average 3.4224430157802455) internal successors, (29279), 8555 states have internal predecessors, (29279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:22,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8556 states to 8556 states and 29279 transitions. [2022-02-10 22:55:22,899 INFO L78 Accepts]: Start accepts. Automaton has 8556 states and 29279 transitions. Word has length 182 [2022-02-10 22:55:22,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:22,900 INFO L470 AbstractCegarLoop]: Abstraction has 8556 states and 29279 transitions. [2022-02-10 22:55:22,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:22,900 INFO L276 IsEmpty]: Start isEmpty. Operand 8556 states and 29279 transitions. [2022-02-10 22:55:22,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:22,914 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:22,914 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:22,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-10 22:55:22,914 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:22,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:22,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1436986525, now seen corresponding path program 48 times [2022-02-10 22:55:22,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:22,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58743577] [2022-02-10 22:55:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:22,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:23,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:23,329 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:23,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58743577] [2022-02-10 22:55:23,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58743577] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:23,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:23,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:23,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789724033] [2022-02-10 22:55:23,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:23,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:23,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:23,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:23,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:23,330 INFO L87 Difference]: Start difference. First operand 8556 states and 29279 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:23,687 INFO L93 Difference]: Finished difference Result 11278 states and 38444 transitions. [2022-02-10 22:55:23,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:23,688 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:23,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:23,714 INFO L225 Difference]: With dead ends: 11278 [2022-02-10 22:55:23,714 INFO L226 Difference]: Without dead ends: 11128 [2022-02-10 22:55:23,714 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:23,714 INFO L934 BasicCegarLoop]: 238 mSDtfsCounter, 506 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:23,714 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 1855 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:23,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11128 states. [2022-02-10 22:55:23,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11128 to 8526. [2022-02-10 22:55:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8526 states, 8525 states have (on average 3.4192375366568917) internal successors, (29149), 8525 states have internal predecessors, (29149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:23,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8526 states to 8526 states and 29149 transitions. [2022-02-10 22:55:23,871 INFO L78 Accepts]: Start accepts. Automaton has 8526 states and 29149 transitions. Word has length 182 [2022-02-10 22:55:23,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:23,871 INFO L470 AbstractCegarLoop]: Abstraction has 8526 states and 29149 transitions. [2022-02-10 22:55:23,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:23,872 INFO L276 IsEmpty]: Start isEmpty. Operand 8526 states and 29149 transitions. [2022-02-10 22:55:23,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:23,887 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:23,887 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:23,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-10 22:55:23,888 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:23,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:23,888 INFO L85 PathProgramCache]: Analyzing trace with hash -210386171, now seen corresponding path program 49 times [2022-02-10 22:55:23,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:23,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93688932] [2022-02-10 22:55:23,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:23,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:24,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:24,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93688932] [2022-02-10 22:55:24,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93688932] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:24,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:24,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:24,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307017057] [2022-02-10 22:55:24,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:24,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:24,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:24,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:24,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:24,438 INFO L87 Difference]: Start difference. First operand 8526 states and 29149 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:24,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:24,797 INFO L93 Difference]: Finished difference Result 11380 states and 38858 transitions. [2022-02-10 22:55:24,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:24,797 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:24,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:24,821 INFO L225 Difference]: With dead ends: 11380 [2022-02-10 22:55:24,821 INFO L226 Difference]: Without dead ends: 11230 [2022-02-10 22:55:24,822 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:24,822 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 421 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:24,822 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1940 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:24,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-02-10 22:55:24,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8496. [2022-02-10 22:55:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8495 states have (on average 3.4195409064155387) internal successors, (29049), 8495 states have internal predecessors, (29049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:24,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 29049 transitions. [2022-02-10 22:55:24,969 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 29049 transitions. Word has length 182 [2022-02-10 22:55:24,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:24,970 INFO L470 AbstractCegarLoop]: Abstraction has 8496 states and 29049 transitions. [2022-02-10 22:55:24,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:24,970 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 29049 transitions. [2022-02-10 22:55:24,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:24,984 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:24,984 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:24,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-10 22:55:24,984 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:24,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:24,984 INFO L85 PathProgramCache]: Analyzing trace with hash -2028272291, now seen corresponding path program 50 times [2022-02-10 22:55:24,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:24,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786157280] [2022-02-10 22:55:24,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:24,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:25,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:25,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:25,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786157280] [2022-02-10 22:55:25,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786157280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:25,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:25,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:25,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555480577] [2022-02-10 22:55:25,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:25,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:25,345 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:25,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:25,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:25,346 INFO L87 Difference]: Start difference. First operand 8496 states and 29049 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:25,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:25,757 INFO L93 Difference]: Finished difference Result 10504 states and 36053 transitions. [2022-02-10 22:55:25,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:25,757 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:25,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:25,780 INFO L225 Difference]: With dead ends: 10504 [2022-02-10 22:55:25,780 INFO L226 Difference]: Without dead ends: 10318 [2022-02-10 22:55:25,780 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:25,781 INFO L934 BasicCegarLoop]: 234 mSDtfsCounter, 445 mSDsluCounter, 2342 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:25,781 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [445 Valid, 2295 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2022-02-10 22:55:25,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 8528. [2022-02-10 22:55:25,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4212501465931746) internal successors, (29173), 8527 states have internal predecessors, (29173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:25,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29173 transitions. [2022-02-10 22:55:25,928 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29173 transitions. Word has length 182 [2022-02-10 22:55:25,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:25,929 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29173 transitions. [2022-02-10 22:55:25,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:25,929 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29173 transitions. [2022-02-10 22:55:25,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:25,943 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:25,943 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:25,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-10 22:55:25,943 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:25,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:25,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1191529251, now seen corresponding path program 51 times [2022-02-10 22:55:25,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:25,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385751922] [2022-02-10 22:55:25,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:25,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:26,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:26,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:26,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385751922] [2022-02-10 22:55:26,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385751922] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:26,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:26,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:26,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752468394] [2022-02-10 22:55:26,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:26,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:26,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:26,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:26,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:26,418 INFO L87 Difference]: Start difference. First operand 8528 states and 29173 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:26,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:26,787 INFO L93 Difference]: Finished difference Result 11152 states and 38234 transitions. [2022-02-10 22:55:26,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:26,788 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:26,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:26,814 INFO L225 Difference]: With dead ends: 11152 [2022-02-10 22:55:26,814 INFO L226 Difference]: Without dead ends: 11002 [2022-02-10 22:55:26,814 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:26,815 INFO L934 BasicCegarLoop]: 237 mSDtfsCounter, 357 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:26,815 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 2051 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:26,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2022-02-10 22:55:26,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 8512. [2022-02-10 22:55:26,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8512 states, 8511 states have (on average 3.420162143108918) internal successors, (29109), 8511 states have internal predecessors, (29109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8512 states to 8512 states and 29109 transitions. [2022-02-10 22:55:26,971 INFO L78 Accepts]: Start accepts. Automaton has 8512 states and 29109 transitions. Word has length 182 [2022-02-10 22:55:26,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:26,972 INFO L470 AbstractCegarLoop]: Abstraction has 8512 states and 29109 transitions. [2022-02-10 22:55:26,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 8512 states and 29109 transitions. [2022-02-10 22:55:26,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:26,986 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:26,986 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:26,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-10 22:55:26,987 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:26,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:26,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1269771011, now seen corresponding path program 52 times [2022-02-10 22:55:26,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:26,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064332605] [2022-02-10 22:55:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:26,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:27,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:27,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064332605] [2022-02-10 22:55:27,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064332605] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:27,435 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:27,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:27,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728359787] [2022-02-10 22:55:27,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:27,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:27,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:27,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:27,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:27,436 INFO L87 Difference]: Start difference. First operand 8512 states and 29109 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:27,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:27,821 INFO L93 Difference]: Finished difference Result 11254 states and 38573 transitions. [2022-02-10 22:55:27,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:27,821 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:27,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:27,846 INFO L225 Difference]: With dead ends: 11254 [2022-02-10 22:55:27,846 INFO L226 Difference]: Without dead ends: 11104 [2022-02-10 22:55:27,847 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:27,847 INFO L934 BasicCegarLoop]: 239 mSDtfsCounter, 538 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:27,847 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 2183 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:27,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2022-02-10 22:55:28,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 8488. [2022-02-10 22:55:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8487 states have (on average 3.4192294096854012) internal successors, (29019), 8487 states have internal predecessors, (29019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:28,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 29019 transitions. [2022-02-10 22:55:28,034 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 29019 transitions. Word has length 182 [2022-02-10 22:55:28,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:28,035 INFO L470 AbstractCegarLoop]: Abstraction has 8488 states and 29019 transitions. [2022-02-10 22:55:28,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:28,035 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 29019 transitions. [2022-02-10 22:55:28,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:28,048 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:28,049 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:28,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-10 22:55:28,049 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:28,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:28,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1833140033, now seen corresponding path program 53 times [2022-02-10 22:55:28,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:28,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274564041] [2022-02-10 22:55:28,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:28,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:28,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:28,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274564041] [2022-02-10 22:55:28,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274564041] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:28,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:28,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:28,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099784464] [2022-02-10 22:55:28,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:28,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:28,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:28,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:28,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:28,452 INFO L87 Difference]: Start difference. First operand 8488 states and 29019 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:28,885 INFO L93 Difference]: Finished difference Result 10586 states and 36098 transitions. [2022-02-10 22:55:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:28,886 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:28,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:28,910 INFO L225 Difference]: With dead ends: 10586 [2022-02-10 22:55:28,910 INFO L226 Difference]: Without dead ends: 10436 [2022-02-10 22:55:28,910 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:28,912 INFO L934 BasicCegarLoop]: 234 mSDtfsCounter, 437 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:28,912 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2585 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:28,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10436 states. [2022-02-10 22:55:29,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10436 to 8788. [2022-02-10 22:55:29,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8788 states, 8787 states have (on average 3.4111756003186526) internal successors, (29974), 8787 states have internal predecessors, (29974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:29,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8788 states to 8788 states and 29974 transitions. [2022-02-10 22:55:29,071 INFO L78 Accepts]: Start accepts. Automaton has 8788 states and 29974 transitions. Word has length 182 [2022-02-10 22:55:29,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:29,071 INFO L470 AbstractCegarLoop]: Abstraction has 8788 states and 29974 transitions. [2022-02-10 22:55:29,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:29,071 INFO L276 IsEmpty]: Start isEmpty. Operand 8788 states and 29974 transitions. [2022-02-10 22:55:29,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:29,087 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:29,087 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:29,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-10 22:55:29,087 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:29,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:29,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1433510019, now seen corresponding path program 54 times [2022-02-10 22:55:29,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:29,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448026013] [2022-02-10 22:55:29,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:29,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:29,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:29,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448026013] [2022-02-10 22:55:29,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448026013] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:29,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:29,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:29,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276319624] [2022-02-10 22:55:29,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:29,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:29,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:29,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:29,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:29,568 INFO L87 Difference]: Start difference. First operand 8788 states and 29974 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:29,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:29,913 INFO L93 Difference]: Finished difference Result 11446 states and 39030 transitions. [2022-02-10 22:55:29,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:29,913 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:29,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:29,939 INFO L225 Difference]: With dead ends: 11446 [2022-02-10 22:55:29,940 INFO L226 Difference]: Without dead ends: 11296 [2022-02-10 22:55:29,940 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:29,940 INFO L934 BasicCegarLoop]: 238 mSDtfsCounter, 545 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:29,940 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 1843 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11296 states. [2022-02-10 22:55:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11296 to 8758. [2022-02-10 22:55:30,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8758 states, 8757 states have (on average 3.408016443987667) internal successors, (29844), 8757 states have internal predecessors, (29844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:30,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8758 states to 8758 states and 29844 transitions. [2022-02-10 22:55:30,101 INFO L78 Accepts]: Start accepts. Automaton has 8758 states and 29844 transitions. Word has length 182 [2022-02-10 22:55:30,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:30,101 INFO L470 AbstractCegarLoop]: Abstraction has 8758 states and 29844 transitions. [2022-02-10 22:55:30,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand 8758 states and 29844 transitions. [2022-02-10 22:55:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:30,116 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:30,116 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:30,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-10 22:55:30,116 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:30,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:30,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1214084581, now seen corresponding path program 55 times [2022-02-10 22:55:30,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:30,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648035656] [2022-02-10 22:55:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:30,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:30,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:30,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648035656] [2022-02-10 22:55:30,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648035656] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:30,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:30,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:30,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8036547] [2022-02-10 22:55:30,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:30,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:30,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:30,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:30,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:30,569 INFO L87 Difference]: Start difference. First operand 8758 states and 29844 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:31,007 INFO L93 Difference]: Finished difference Result 11581 states and 39520 transitions. [2022-02-10 22:55:31,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:31,008 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:31,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:31,034 INFO L225 Difference]: With dead ends: 11581 [2022-02-10 22:55:31,034 INFO L226 Difference]: Without dead ends: 11431 [2022-02-10 22:55:31,034 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:31,047 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 398 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:31,047 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 2173 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:31,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11431 states. [2022-02-10 22:55:31,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11431 to 8728. [2022-02-10 22:55:31,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8728 states, 8727 states have (on average 3.4082731752033917) internal successors, (29744), 8727 states have internal predecessors, (29744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:31,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8728 states to 8728 states and 29744 transitions. [2022-02-10 22:55:31,206 INFO L78 Accepts]: Start accepts. Automaton has 8728 states and 29744 transitions. Word has length 182 [2022-02-10 22:55:31,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:31,206 INFO L470 AbstractCegarLoop]: Abstraction has 8728 states and 29744 transitions. [2022-02-10 22:55:31,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:31,206 INFO L276 IsEmpty]: Start isEmpty. Operand 8728 states and 29744 transitions. [2022-02-10 22:55:31,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:31,221 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:31,221 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:31,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-10 22:55:31,221 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:31,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:31,222 INFO L85 PathProgramCache]: Analyzing trace with hash -501599589, now seen corresponding path program 56 times [2022-02-10 22:55:31,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:31,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984802504] [2022-02-10 22:55:31,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:31,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:31,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:31,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984802504] [2022-02-10 22:55:31,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984802504] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:31,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:31,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:31,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797537168] [2022-02-10 22:55:31,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:31,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:31,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:31,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:31,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:31,759 INFO L87 Difference]: Start difference. First operand 8728 states and 29744 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:32,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:32,159 INFO L93 Difference]: Finished difference Result 11350 states and 38758 transitions. [2022-02-10 22:55:32,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:32,160 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:32,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:32,185 INFO L225 Difference]: With dead ends: 11350 [2022-02-10 22:55:32,185 INFO L226 Difference]: Without dead ends: 11200 [2022-02-10 22:55:32,185 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:32,186 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 537 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:32,186 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 1771 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-10 22:55:32,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11200 states. [2022-02-10 22:55:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11200 to 8488. [2022-02-10 22:55:32,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8487 states have (on average 3.4192294096854012) internal successors, (29019), 8487 states have internal predecessors, (29019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 29019 transitions. [2022-02-10 22:55:32,338 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 29019 transitions. Word has length 182 [2022-02-10 22:55:32,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:32,338 INFO L470 AbstractCegarLoop]: Abstraction has 8488 states and 29019 transitions. [2022-02-10 22:55:32,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:32,338 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 29019 transitions. [2022-02-10 22:55:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:32,352 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:32,352 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:32,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-10 22:55:32,352 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:32,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1963569153, now seen corresponding path program 57 times [2022-02-10 22:55:32,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:32,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175877292] [2022-02-10 22:55:32,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:32,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:32,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:32,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175877292] [2022-02-10 22:55:32,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175877292] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:32,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:32,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:32,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997743301] [2022-02-10 22:55:32,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:32,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:32,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:32,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:32,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:32,688 INFO L87 Difference]: Start difference. First operand 8488 states and 29019 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:33,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:33,069 INFO L93 Difference]: Finished difference Result 10496 states and 36023 transitions. [2022-02-10 22:55:33,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:55:33,069 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:33,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:33,092 INFO L225 Difference]: With dead ends: 10496 [2022-02-10 22:55:33,093 INFO L226 Difference]: Without dead ends: 10310 [2022-02-10 22:55:33,093 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:33,093 INFO L934 BasicCegarLoop]: 234 mSDtfsCounter, 448 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:33,093 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 2086 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:33,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10310 states. [2022-02-10 22:55:33,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10310 to 8568. [2022-02-10 22:55:33,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8568 states, 8567 states have (on average 3.422785105637913) internal successors, (29323), 8567 states have internal predecessors, (29323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 29323 transitions. [2022-02-10 22:55:33,238 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 29323 transitions. Word has length 182 [2022-02-10 22:55:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:33,238 INFO L470 AbstractCegarLoop]: Abstraction has 8568 states and 29323 transitions. [2022-02-10 22:55:33,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 29323 transitions. [2022-02-10 22:55:33,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:33,253 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:33,253 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:33,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-10 22:55:33,253 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:33,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:33,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1126826113, now seen corresponding path program 58 times [2022-02-10 22:55:33,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:33,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249093011] [2022-02-10 22:55:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:33,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:33,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:33,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:33,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249093011] [2022-02-10 22:55:33,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249093011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:33,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:33,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:33,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897921672] [2022-02-10 22:55:33,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:33,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:33,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:33,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:33,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:33,753 INFO L87 Difference]: Start difference. First operand 8568 states and 29323 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:34,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:34,234 INFO L93 Difference]: Finished difference Result 11292 states and 38714 transitions. [2022-02-10 22:55:34,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:34,235 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:34,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:34,260 INFO L225 Difference]: With dead ends: 11292 [2022-02-10 22:55:34,260 INFO L226 Difference]: Without dead ends: 11142 [2022-02-10 22:55:34,261 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:34,261 INFO L934 BasicCegarLoop]: 237 mSDtfsCounter, 349 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:34,261 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 2480 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:34,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11142 states. [2022-02-10 22:55:34,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11142 to 8552. [2022-02-10 22:55:34,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8551 states have (on average 3.4217050637352355) internal successors, (29259), 8551 states have internal predecessors, (29259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 29259 transitions. [2022-02-10 22:55:34,417 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 29259 transitions. Word has length 182 [2022-02-10 22:55:34,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:34,417 INFO L470 AbstractCegarLoop]: Abstraction has 8552 states and 29259 transitions. [2022-02-10 22:55:34,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:34,418 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 29259 transitions. [2022-02-10 22:55:34,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:34,432 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:34,432 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:34,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-10 22:55:34,432 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:34,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1334474149, now seen corresponding path program 59 times [2022-02-10 22:55:34,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:34,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155062920] [2022-02-10 22:55:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:34,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:34,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:34,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155062920] [2022-02-10 22:55:34,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155062920] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:34,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:34,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:34,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885449815] [2022-02-10 22:55:34,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:34,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:34,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:34,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:34,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:34,883 INFO L87 Difference]: Start difference. First operand 8552 states and 29259 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:35,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:35,389 INFO L93 Difference]: Finished difference Result 11441 states and 39195 transitions. [2022-02-10 22:55:35,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:35,389 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:35,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:35,416 INFO L225 Difference]: With dead ends: 11441 [2022-02-10 22:55:35,416 INFO L226 Difference]: Without dead ends: 11291 [2022-02-10 22:55:35,417 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:35,417 INFO L934 BasicCegarLoop]: 239 mSDtfsCounter, 389 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:35,417 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2928 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-10 22:55:35,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11291 states. [2022-02-10 22:55:35,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11291 to 8536. [2022-02-10 22:55:35,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.421089630931459) internal successors, (29199), 8535 states have internal predecessors, (29199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:35,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29199 transitions. [2022-02-10 22:55:35,629 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29199 transitions. Word has length 182 [2022-02-10 22:55:35,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:35,629 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29199 transitions. [2022-02-10 22:55:35,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:35,630 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29199 transitions. [2022-02-10 22:55:35,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-10 22:55:35,644 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:35,644 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:35,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-10 22:55:35,645 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1861367203, now seen corresponding path program 60 times [2022-02-10 22:55:35,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:35,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871018719] [2022-02-10 22:55:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:35,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:36,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:36,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871018719] [2022-02-10 22:55:36,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871018719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:36,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:55:36,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-10 22:55:36,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651016275] [2022-02-10 22:55:36,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:36,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 22:55:36,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:36,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 22:55:36,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-02-10 22:55:36,145 INFO L87 Difference]: Start difference. First operand 8536 states and 29199 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:36,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:36,597 INFO L93 Difference]: Finished difference Result 11218 states and 38438 transitions. [2022-02-10 22:55:36,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-10 22:55:36,598 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-02-10 22:55:36,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:36,623 INFO L225 Difference]: With dead ends: 11218 [2022-02-10 22:55:36,624 INFO L226 Difference]: Without dead ends: 11068 [2022-02-10 22:55:36,624 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:55:36,624 INFO L934 BasicCegarLoop]: 239 mSDtfsCounter, 512 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:36,624 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 2129 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-10 22:55:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2022-02-10 22:55:36,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 8360. [2022-02-10 22:55:36,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8360 states, 8359 states have (on average 3.4184711089843285) internal successors, (28575), 8359 states have internal predecessors, (28575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:36,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8360 states to 8360 states and 28575 transitions. [2022-02-10 22:55:36,772 INFO L78 Accepts]: Start accepts. Automaton has 8360 states and 28575 transitions. Word has length 182 [2022-02-10 22:55:36,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:36,772 INFO L470 AbstractCegarLoop]: Abstraction has 8360 states and 28575 transitions. [2022-02-10 22:55:36,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:36,772 INFO L276 IsEmpty]: Start isEmpty. Operand 8360 states and 28575 transitions. [2022-02-10 22:55:36,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-02-10 22:55:36,786 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:36,787 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:36,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-10 22:55:36,787 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:36,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:36,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1224210520, now seen corresponding path program 1 times [2022-02-10 22:55:36,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:36,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391437651] [2022-02-10 22:55:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:36,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:36,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:36,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391437651] [2022-02-10 22:55:36,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391437651] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:55:36,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638272645] [2022-02-10 22:55:36,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:36,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:36,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:55:36,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:55:36,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:55:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:37,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:55:37,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:55:37,311 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-10 22:55:37,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:55:37,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638272645] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:55:37,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:55:37,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-02-10 22:55:37,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665635813] [2022-02-10 22:55:37,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:55:37,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:55:37,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:37,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:55:37,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:55:37,312 INFO L87 Difference]: Start difference. First operand 8360 states and 28575 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:37,400 INFO L93 Difference]: Finished difference Result 16640 states and 58245 transitions. [2022-02-10 22:55:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 22:55:37,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 187 [2022-02-10 22:55:37,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:37,439 INFO L225 Difference]: With dead ends: 16640 [2022-02-10 22:55:37,440 INFO L226 Difference]: Without dead ends: 15860 [2022-02-10 22:55:37,440 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:55:37,440 INFO L934 BasicCegarLoop]: 203 mSDtfsCounter, 173 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:37,444 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 397 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:55:37,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15860 states. [2022-02-10 22:55:37,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15860 to 13004. [2022-02-10 22:55:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13004 states, 13003 states have (on average 3.5440283011612705) internal successors, (46083), 13003 states have internal predecessors, (46083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 46083 transitions. [2022-02-10 22:55:37,693 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 46083 transitions. Word has length 187 [2022-02-10 22:55:37,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:37,693 INFO L470 AbstractCegarLoop]: Abstraction has 13004 states and 46083 transitions. [2022-02-10 22:55:37,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:37,693 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 46083 transitions. [2022-02-10 22:55:37,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-02-10 22:55:37,717 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:37,717 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:37,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-10 22:55:37,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:37,932 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:37,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:37,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1066332014, now seen corresponding path program 1 times [2022-02-10 22:55:37,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:37,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849125102] [2022-02-10 22:55:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:37,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:37,993 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:37,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:37,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849125102] [2022-02-10 22:55:37,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849125102] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:55:37,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777963634] [2022-02-10 22:55:37,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:37,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:37,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:55:38,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:55:38,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 22:55:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:38,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-10 22:55:38,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:55:38,473 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:38,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:55:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:38,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777963634] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:55:38,785 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:55:38,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-02-10 22:55:38,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344419161] [2022-02-10 22:55:38,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:55:38,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:55:38,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:38,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:55:38,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:55:38,786 INFO L87 Difference]: Start difference. First operand 13004 states and 46083 transitions. Second operand has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:39,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:39,046 INFO L93 Difference]: Finished difference Result 21336 states and 73984 transitions. [2022-02-10 22:55:39,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:55:39,047 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 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 188 [2022-02-10 22:55:39,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:39,091 INFO L225 Difference]: With dead ends: 21336 [2022-02-10 22:55:39,091 INFO L226 Difference]: Without dead ends: 17904 [2022-02-10 22:55:39,092 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-02-10 22:55:39,092 INFO L934 BasicCegarLoop]: 191 mSDtfsCounter, 852 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:39,092 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 1449 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:55:39,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17904 states. [2022-02-10 22:55:39,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17904 to 16252. [2022-02-10 22:55:39,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16252 states, 16251 states have (on average 3.50772260168605) internal successors, (57004), 16251 states have internal predecessors, (57004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16252 states to 16252 states and 57004 transitions. [2022-02-10 22:55:39,527 INFO L78 Accepts]: Start accepts. Automaton has 16252 states and 57004 transitions. Word has length 188 [2022-02-10 22:55:39,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:39,527 INFO L470 AbstractCegarLoop]: Abstraction has 16252 states and 57004 transitions. [2022-02-10 22:55:39,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:39,528 INFO L276 IsEmpty]: Start isEmpty. Operand 16252 states and 57004 transitions. [2022-02-10 22:55:39,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-02-10 22:55:39,557 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:39,557 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:39,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-10 22:55:39,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2022-02-10 22:55:39,772 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:39,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:39,772 INFO L85 PathProgramCache]: Analyzing trace with hash -44480918, now seen corresponding path program 1 times [2022-02-10 22:55:39,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:39,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979581758] [2022-02-10 22:55:39,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:39,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:39,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:39,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979581758] [2022-02-10 22:55:39,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979581758] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:55:39,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946351895] [2022-02-10 22:55:39,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:39,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:39,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:55:39,872 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:55:39,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 22:55:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:39,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-10 22:55:40,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:55:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:40,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:55:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:40,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946351895] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:55:40,689 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:55:40,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-02-10 22:55:40,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464279593] [2022-02-10 22:55:40,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:55:40,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-10 22:55:40,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:40,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-10 22:55:40,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-02-10 22:55:40,690 INFO L87 Difference]: Start difference. First operand 16252 states and 57004 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:41,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:41,032 INFO L93 Difference]: Finished difference Result 30484 states and 105398 transitions. [2022-02-10 22:55:41,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:55:41,032 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 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 188 [2022-02-10 22:55:41,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:41,088 INFO L225 Difference]: With dead ends: 30484 [2022-02-10 22:55:41,089 INFO L226 Difference]: Without dead ends: 21539 [2022-02-10 22:55:41,089 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:55:41,089 INFO L934 BasicCegarLoop]: 188 mSDtfsCounter, 643 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:41,089 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 1696 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:55:41,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21539 states. [2022-02-10 22:55:41,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21539 to 16503. [2022-02-10 22:55:41,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16503 states, 16502 states have (on average 3.4929705490243608) internal successors, (57641), 16502 states have internal predecessors, (57641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:41,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16503 states to 16503 states and 57641 transitions. [2022-02-10 22:55:41,436 INFO L78 Accepts]: Start accepts. Automaton has 16503 states and 57641 transitions. Word has length 188 [2022-02-10 22:55:41,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:41,436 INFO L470 AbstractCegarLoop]: Abstraction has 16503 states and 57641 transitions. [2022-02-10 22:55:41,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:41,436 INFO L276 IsEmpty]: Start isEmpty. Operand 16503 states and 57641 transitions. [2022-02-10 22:55:41,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-10 22:55:41,467 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:41,467 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:41,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 22:55:41,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:41,684 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:41,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:41,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1650696287, now seen corresponding path program 2 times [2022-02-10 22:55:41,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:41,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837553969] [2022-02-10 22:55:41,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:41,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:41,834 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-10 22:55:41,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:41,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837553969] [2022-02-10 22:55:41,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837553969] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:55:41,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385875528] [2022-02-10 22:55:41,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:55:41,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:41,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:55:41,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:55:41,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 22:55:41,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:55:41,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:55:41,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-10 22:55:41,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:55:42,498 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-10 22:55:42,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:55:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-10 22:55:43,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385875528] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:55:43,248 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:55:43,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2022-02-10 22:55:43,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781928981] [2022-02-10 22:55:43,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:55:43,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-10 22:55:43,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:43,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-10 22:55:43,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2022-02-10 22:55:43,250 INFO L87 Difference]: Start difference. First operand 16503 states and 57641 transitions. Second operand has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:43,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:43,644 INFO L93 Difference]: Finished difference Result 18386 states and 63392 transitions. [2022-02-10 22:55:43,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 22:55:43,644 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 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 195 [2022-02-10 22:55:43,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:43,686 INFO L225 Difference]: With dead ends: 18386 [2022-02-10 22:55:43,686 INFO L226 Difference]: Without dead ends: 16264 [2022-02-10 22:55:43,687 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=387, Invalid=1173, Unknown=0, NotChecked=0, Total=1560 [2022-02-10 22:55:43,687 INFO L934 BasicCegarLoop]: 204 mSDtfsCounter, 1101 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:43,687 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1101 Valid, 2077 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:55:43,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16264 states. [2022-02-10 22:55:44,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16264 to 16259. [2022-02-10 22:55:44,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16259 states, 16258 states have (on average 3.506642883503506) internal successors, (57011), 16258 states have internal predecessors, (57011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16259 states to 16259 states and 57011 transitions. [2022-02-10 22:55:44,115 INFO L78 Accepts]: Start accepts. Automaton has 16259 states and 57011 transitions. Word has length 195 [2022-02-10 22:55:44,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:44,115 INFO L470 AbstractCegarLoop]: Abstraction has 16259 states and 57011 transitions. [2022-02-10 22:55:44,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 16259 states and 57011 transitions. [2022-02-10 22:55:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-10 22:55:44,147 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:44,147 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:44,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 22:55:44,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:44,365 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:44,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:44,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1930069325, now seen corresponding path program 2 times [2022-02-10 22:55:44,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:44,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635146276] [2022-02-10 22:55:44,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:44,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:44,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:44,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635146276] [2022-02-10 22:55:44,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635146276] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:55:44,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557492935] [2022-02-10 22:55:44,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:55:44,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:44,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:55:44,702 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:55:44,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 22:55:44,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:55:44,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:55:44,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 36 conjunts are in the unsatisfiable core [2022-02-10 22:55:44,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:55:45,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-10 22:55:45,730 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:55:45,730 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 10 [2022-02-10 22:55:45,821 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:45,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:55:46,015 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-02-10 22:55:46,015 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-02-10 22:55:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:46,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557492935] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:55:46,755 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:55:46,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 14] total 37 [2022-02-10 22:55:46,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750229884] [2022-02-10 22:55:46,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:55:46,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-02-10 22:55:46,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:46,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-02-10 22:55:46,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=1004, Unknown=0, NotChecked=0, Total=1332 [2022-02-10 22:55:46,756 INFO L87 Difference]: Start difference. First operand 16259 states and 57011 transitions. Second operand has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:48,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:48,151 INFO L93 Difference]: Finished difference Result 85276 states and 297897 transitions. [2022-02-10 22:55:48,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-10 22:55:48,151 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 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 195 [2022-02-10 22:55:48,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:48,359 INFO L225 Difference]: With dead ends: 85276 [2022-02-10 22:55:48,359 INFO L226 Difference]: Without dead ends: 63134 [2022-02-10 22:55:48,360 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 369 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1265 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=951, Invalid=3339, Unknown=0, NotChecked=0, Total=4290 [2022-02-10 22:55:48,360 INFO L934 BasicCegarLoop]: 304 mSDtfsCounter, 1512 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 4189 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:48,360 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 4189 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-10 22:55:48,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63134 states. [2022-02-10 22:55:49,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63134 to 33761. [2022-02-10 22:55:49,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33761 states, 33760 states have (on average 3.618601895734597) internal successors, (122164), 33760 states have internal predecessors, (122164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 122164 transitions. [2022-02-10 22:55:49,793 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 122164 transitions. Word has length 195 [2022-02-10 22:55:49,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:49,793 INFO L470 AbstractCegarLoop]: Abstraction has 33761 states and 122164 transitions. [2022-02-10 22:55:49,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:49,793 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 122164 transitions. [2022-02-10 22:55:49,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-10 22:55:49,870 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:49,870 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:49,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 22:55:50,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2022-02-10 22:55:50,084 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:50,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:50,085 INFO L85 PathProgramCache]: Analyzing trace with hash 799326719, now seen corresponding path program 3 times [2022-02-10 22:55:50,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:50,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900919540] [2022-02-10 22:55:50,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:50,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:50,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:50,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900919540] [2022-02-10 22:55:50,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900919540] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:55:50,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411004248] [2022-02-10 22:55:50,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:55:50,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:50,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:55:50,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:55:50,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 22:55:50,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:55:50,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:55:50,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-10 22:55:50,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:55:51,313 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-02-10 22:55:51,313 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-02-10 22:55:51,369 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-10 22:55:51,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:55:51,474 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-02-10 22:55:51,474 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-02-10 22:55:51,874 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-10 22:55:51,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411004248] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:55:51,875 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:55:51,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 5, 5] total 22 [2022-02-10 22:55:51,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224537289] [2022-02-10 22:55:51,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:55:51,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-10 22:55:51,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:51,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-10 22:55:51,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:55:51,876 INFO L87 Difference]: Start difference. First operand 33761 states and 122164 transitions. Second operand has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:52,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:55:52,826 INFO L93 Difference]: Finished difference Result 43176 states and 153626 transitions. [2022-02-10 22:55:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 22:55:52,826 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 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 195 [2022-02-10 22:55:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:55:53,070 INFO L225 Difference]: With dead ends: 43176 [2022-02-10 22:55:53,070 INFO L226 Difference]: Without dead ends: 39382 [2022-02-10 22:55:53,071 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 385 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=298, Invalid=1424, Unknown=0, NotChecked=0, Total=1722 [2022-02-10 22:55:53,071 INFO L934 BasicCegarLoop]: 232 mSDtfsCounter, 463 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:55:53,071 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2853 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 693 Invalid, 0 Unknown, 62 Unchecked, 0.3s Time] [2022-02-10 22:55:53,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39382 states. [2022-02-10 22:55:53,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39382 to 34982. [2022-02-10 22:55:53,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34982 states, 34981 states have (on average 3.6216803407564107) internal successors, (126690), 34981 states have internal predecessors, (126690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:54,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34982 states to 34982 states and 126690 transitions. [2022-02-10 22:55:54,084 INFO L78 Accepts]: Start accepts. Automaton has 34982 states and 126690 transitions. Word has length 195 [2022-02-10 22:55:54,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:55:54,084 INFO L470 AbstractCegarLoop]: Abstraction has 34982 states and 126690 transitions. [2022-02-10 22:55:54,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:55:54,084 INFO L276 IsEmpty]: Start isEmpty. Operand 34982 states and 126690 transitions. [2022-02-10 22:55:54,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-10 22:55:54,156 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:55:54,156 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:55:54,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-10 22:55:54,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:54,372 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:55:54,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:55:54,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1879711941, now seen corresponding path program 4 times [2022-02-10 22:55:54,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:55:54,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745498767] [2022-02-10 22:55:54,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:55:54,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:55:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:55:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:55,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:55:55,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745498767] [2022-02-10 22:55:55,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745498767] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:55:55,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095200281] [2022-02-10 22:55:55,027 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:55:55,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:55:55,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:55:55,028 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:55:55,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 22:55:55,144 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:55:55,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:55:55,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-10 22:55:55,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:55:55,187 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:55:55,381 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 22:55:55,382 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-10 22:55:56,309 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:55:56,349 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-10 22:55:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:56,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:55:56,497 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1548 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1548) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-10 22:55:56,641 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:55:56,642 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-02-10 22:55:56,644 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-10 22:55:58,189 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:55:58,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095200281] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:55:58,189 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:55:58,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 58 [2022-02-10 22:55:58,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510061307] [2022-02-10 22:55:58,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:55:58,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-10 22:55:58,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:55:58,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-10 22:55:58,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=2914, Unknown=1, NotChecked=110, Total=3306 [2022-02-10 22:55:58,190 INFO L87 Difference]: Start difference. First operand 34982 states and 126690 transitions. Second operand has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:05,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:56:05,012 INFO L93 Difference]: Finished difference Result 139174 states and 499828 transitions. [2022-02-10 22:56:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-10 22:56:05,013 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 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 195 [2022-02-10 22:56:05,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:56:05,782 INFO L225 Difference]: With dead ends: 139174 [2022-02-10 22:56:05,782 INFO L226 Difference]: Without dead ends: 125061 [2022-02-10 22:56:05,783 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 357 SyntacticMatches, 12 SemanticMatches, 126 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4735 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2166, Invalid=13827, Unknown=13, NotChecked=250, Total=16256 [2022-02-10 22:56:05,783 INFO L934 BasicCegarLoop]: 293 mSDtfsCounter, 4015 mSDsluCounter, 9230 mSDsCounter, 0 mSdLazyCounter, 2679 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4015 SdHoareTripleChecker+Valid, 8732 SdHoareTripleChecker+Invalid, 4113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1213 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:56:05,783 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [4015 Valid, 8732 Invalid, 4113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2679 Invalid, 0 Unknown, 1213 Unchecked, 1.1s Time] [2022-02-10 22:56:05,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125061 states. [2022-02-10 22:56:07,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125061 to 60557. [2022-02-10 22:56:07,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60557 states, 60556 states have (on average 3.708748926613383) internal successors, (224587), 60556 states have internal predecessors, (224587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:08,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60557 states to 60557 states and 224587 transitions. [2022-02-10 22:56:08,234 INFO L78 Accepts]: Start accepts. Automaton has 60557 states and 224587 transitions. Word has length 195 [2022-02-10 22:56:08,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:56:08,234 INFO L470 AbstractCegarLoop]: Abstraction has 60557 states and 224587 transitions. [2022-02-10 22:56:08,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:08,235 INFO L276 IsEmpty]: Start isEmpty. Operand 60557 states and 224587 transitions. [2022-02-10 22:56:08,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-10 22:56:08,558 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:56:08,558 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:56:08,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-10 22:56:08,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:56:08,776 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:56:08,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:56:08,776 INFO L85 PathProgramCache]: Analyzing trace with hash -397770113, now seen corresponding path program 5 times [2022-02-10 22:56:08,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:56:08,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071631374] [2022-02-10 22:56:08,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:56:08,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:56:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:56:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:56:10,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:56:10,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071631374] [2022-02-10 22:56:10,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071631374] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:56:10,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751950714] [2022-02-10 22:56:10,108 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:56:10,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:56:10,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:56:10,109 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:56:10,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 22:56:10,268 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-02-10 22:56:10,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:56:10,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 33 conjunts are in the unsatisfiable core [2022-02-10 22:56:10,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:56:10,307 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:56:10,347 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-10 22:56:10,347 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-10 22:56:10,516 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 22:56:10,517 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-10 22:56:10,936 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:56:11,074 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-02-10 22:56:11,074 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-02-10 22:56:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-10 22:56:11,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:56:11,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751950714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:56:11,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:56:11,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [29] total 39 [2022-02-10 22:56:11,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688383773] [2022-02-10 22:56:11,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:56:11,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-10 22:56:11,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:56:11,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-10 22:56:11,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1376, Unknown=0, NotChecked=0, Total=1482 [2022-02-10 22:56:11,156 INFO L87 Difference]: Start difference. First operand 60557 states and 224587 transitions. Second operand has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:11,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:56:11,989 INFO L93 Difference]: Finished difference Result 80221 states and 293711 transitions. [2022-02-10 22:56:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-10 22:56:11,990 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 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 195 [2022-02-10 22:56:11,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:56:12,424 INFO L225 Difference]: With dead ends: 80221 [2022-02-10 22:56:12,424 INFO L226 Difference]: Without dead ends: 78359 [2022-02-10 22:56:12,424 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=204, Invalid=2346, Unknown=0, NotChecked=0, Total=2550 [2022-02-10 22:56:12,425 INFO L934 BasicCegarLoop]: 224 mSDtfsCounter, 431 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:56:12,425 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1721 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 272 Invalid, 0 Unknown, 68 Unchecked, 0.1s Time] [2022-02-10 22:56:12,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78359 states. [2022-02-10 22:56:13,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78359 to 63413. [2022-02-10 22:56:14,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63413 states, 63412 states have (on average 3.7079259446161608) internal successors, (235127), 63412 states have internal predecessors, (235127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:14,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63413 states to 63413 states and 235127 transitions. [2022-02-10 22:56:14,285 INFO L78 Accepts]: Start accepts. Automaton has 63413 states and 235127 transitions. Word has length 195 [2022-02-10 22:56:14,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:56:14,285 INFO L470 AbstractCegarLoop]: Abstraction has 63413 states and 235127 transitions. [2022-02-10 22:56:14,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:14,285 INFO L276 IsEmpty]: Start isEmpty. Operand 63413 states and 235127 transitions. [2022-02-10 22:56:14,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-10 22:56:14,678 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:56:14,679 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:56:14,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-10 22:56:14,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:56:14,896 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:56:14,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:56:14,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1963341365, now seen corresponding path program 6 times [2022-02-10 22:56:14,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:56:14,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494557491] [2022-02-10 22:56:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:56:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:56:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:56:15,523 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:56:15,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:56:15,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494557491] [2022-02-10 22:56:15,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494557491] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:56:15,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778717265] [2022-02-10 22:56:15,524 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 22:56:15,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:56:15,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:56:15,528 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:56:15,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 22:56:15,676 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-02-10 22:56:15,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:56:15,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-10 22:56:15,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:56:16,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:56:16,665 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:56:16,901 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-02-10 22:56:16,901 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-02-10 22:56:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:56:16,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:56:17,148 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:56:17,149 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-02-10 22:56:17,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-10 22:56:18,516 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:56:18,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778717265] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:56:18,517 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:56:18,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 58 [2022-02-10 22:56:18,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443132021] [2022-02-10 22:56:18,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:56:18,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-10 22:56:18,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:56:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-10 22:56:18,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=3069, Unknown=0, NotChecked=0, Total=3306 [2022-02-10 22:56:18,518 INFO L87 Difference]: Start difference. First operand 63413 states and 235127 transitions. Second operand has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:24,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:56:24,316 INFO L93 Difference]: Finished difference Result 131492 states and 482053 transitions. [2022-02-10 22:56:24,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-10 22:56:24,335 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 states have internal predecessors, (436), 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 195 [2022-02-10 22:56:24,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:56:24,882 INFO L225 Difference]: With dead ends: 131492 [2022-02-10 22:56:24,882 INFO L226 Difference]: Without dead ends: 130008 [2022-02-10 22:56:24,883 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 365 SyntacticMatches, 15 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4008 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1725, Invalid=12795, Unknown=0, NotChecked=0, Total=14520 [2022-02-10 22:56:24,883 INFO L934 BasicCegarLoop]: 337 mSDtfsCounter, 3583 mSDsluCounter, 11219 mSDsCounter, 0 mSdLazyCounter, 3184 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 10626 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 3184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 182 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:56:24,883 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 10626 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 3184 Invalid, 0 Unknown, 182 Unchecked, 1.1s Time] [2022-02-10 22:56:25,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130008 states. [2022-02-10 22:56:27,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130008 to 63667. [2022-02-10 22:56:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63667 states, 63666 states have (on average 3.7056199541356456) internal successors, (235922), 63666 states have internal predecessors, (235922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:27,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63667 states to 63667 states and 235922 transitions. [2022-02-10 22:56:27,695 INFO L78 Accepts]: Start accepts. Automaton has 63667 states and 235922 transitions. Word has length 195 [2022-02-10 22:56:27,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:56:27,695 INFO L470 AbstractCegarLoop]: Abstraction has 63667 states and 235922 transitions. [2022-02-10 22:56:27,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:27,695 INFO L276 IsEmpty]: Start isEmpty. Operand 63667 states and 235922 transitions. [2022-02-10 22:56:27,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-10 22:56:27,846 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:56:27,846 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:56:27,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-10 22:56:28,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:56:28,052 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:56:28,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:56:28,052 INFO L85 PathProgramCache]: Analyzing trace with hash -882956143, now seen corresponding path program 7 times [2022-02-10 22:56:28,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:56:28,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525446165] [2022-02-10 22:56:28,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:56:28,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:56:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:56:29,063 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:56:29,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:56:29,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525446165] [2022-02-10 22:56:29,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525446165] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:56:29,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463964387] [2022-02-10 22:56:29,064 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 22:56:29,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:56:29,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:56:29,065 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:56:29,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 22:56:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:56:29,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 49 conjunts are in the unsatisfiable core [2022-02-10 22:56:29,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:56:29,265 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-10 22:56:29,291 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-10 22:56:29,292 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-02-10 22:56:29,635 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-10 22:56:29,636 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-02-10 22:56:30,585 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-02-10 22:56:30,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:56:30,871 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:56:30,913 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-10 22:56:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:56:30,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:56:31,082 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1688 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1688) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-10 22:56:31,316 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:56:31,317 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 85 [2022-02-10 22:56:31,319 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 58 [2022-02-10 22:56:31,322 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2022-02-10 22:56:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:56:33,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463964387] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:56:33,420 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:56:33,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 23] total 68 [2022-02-10 22:56:33,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992197118] [2022-02-10 22:56:33,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:56:33,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-10 22:56:33,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:56:33,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-10 22:56:33,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=4099, Unknown=2, NotChecked=130, Total=4556 [2022-02-10 22:56:33,422 INFO L87 Difference]: Start difference. First operand 63667 states and 235922 transitions. Second operand has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:46,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:56:46,316 INFO L93 Difference]: Finished difference Result 231914 states and 848599 transitions. [2022-02-10 22:56:46,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-10 22:56:46,317 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 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 195 [2022-02-10 22:56:46,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:56:47,601 INFO L225 Difference]: With dead ends: 231914 [2022-02-10 22:56:47,602 INFO L226 Difference]: Without dead ends: 213213 [2022-02-10 22:56:47,602 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 357 SyntacticMatches, 24 SemanticMatches, 155 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8004 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=2946, Invalid=21215, Unknown=23, NotChecked=308, Total=24492 [2022-02-10 22:56:47,603 INFO L934 BasicCegarLoop]: 327 mSDtfsCounter, 6034 mSDsluCounter, 14218 mSDsCounter, 0 mSdLazyCounter, 4987 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6034 SdHoareTripleChecker+Valid, 13306 SdHoareTripleChecker+Invalid, 8052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 4987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2692 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:56:47,603 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [6034 Valid, 13306 Invalid, 8052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 4987 Invalid, 0 Unknown, 2692 Unchecked, 2.3s Time] [2022-02-10 22:56:47,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213213 states. [2022-02-10 22:56:50,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213213 to 59461. [2022-02-10 22:56:50,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59461 states, 59460 states have (on average 3.6814328960645812) internal successors, (218898), 59460 states have internal predecessors, (218898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59461 states to 59461 states and 218898 transitions. [2022-02-10 22:56:51,484 INFO L78 Accepts]: Start accepts. Automaton has 59461 states and 218898 transitions. Word has length 195 [2022-02-10 22:56:51,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:56:51,484 INFO L470 AbstractCegarLoop]: Abstraction has 59461 states and 218898 transitions. [2022-02-10 22:56:51,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:51,484 INFO L276 IsEmpty]: Start isEmpty. Operand 59461 states and 218898 transitions. [2022-02-10 22:56:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-10 22:56:51,620 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:56:51,621 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:56:51,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-10 22:56:51,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2022-02-10 22:56:51,843 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:56:51,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:56:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1483032586, now seen corresponding path program 3 times [2022-02-10 22:56:51,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:56:51,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694960723] [2022-02-10 22:56:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:56:51,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:56:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:56:51,891 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-10 22:56:51,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:56:51,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694960723] [2022-02-10 22:56:51,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694960723] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:56:51,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679109247] [2022-02-10 22:56:51,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:56:51,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:56:51,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:56:51,892 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:56:51,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-10 22:56:52,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:56:52,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:56:52,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:56:52,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:56:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-10 22:56:52,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:56:52,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679109247] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:56:52,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:56:52,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-02-10 22:56:52,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238640584] [2022-02-10 22:56:52,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:56:52,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:56:52,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:56:52,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:56:52,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:56:52,306 INFO L87 Difference]: Start difference. First operand 59461 states and 218898 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:53,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:56:53,055 INFO L93 Difference]: Finished difference Result 88471 states and 323334 transitions. [2022-02-10 22:56:53,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 22:56:53,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 202 [2022-02-10 22:56:53,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:56:53,750 INFO L225 Difference]: With dead ends: 88471 [2022-02-10 22:56:53,750 INFO L226 Difference]: Without dead ends: 86165 [2022-02-10 22:56:53,750 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:56:53,750 INFO L934 BasicCegarLoop]: 198 mSDtfsCounter, 189 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:56:53,750 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 387 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:56:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86165 states. [2022-02-10 22:56:55,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86165 to 75916. [2022-02-10 22:56:55,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75916 states, 75915 states have (on average 3.6963841138115) internal successors, (280611), 75915 states have internal predecessors, (280611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:56,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75916 states to 75916 states and 280611 transitions. [2022-02-10 22:56:56,202 INFO L78 Accepts]: Start accepts. Automaton has 75916 states and 280611 transitions. Word has length 202 [2022-02-10 22:56:56,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:56:56,203 INFO L470 AbstractCegarLoop]: Abstraction has 75916 states and 280611 transitions. [2022-02-10 22:56:56,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:56:56,203 INFO L276 IsEmpty]: Start isEmpty. Operand 75916 states and 280611 transitions. [2022-02-10 22:56:56,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-10 22:56:56,385 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:56:56,385 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:56:56,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-10 22:56:56,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2022-02-10 22:56:56,588 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:56:56,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:56:56,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1449450942, now seen corresponding path program 8 times [2022-02-10 22:56:56,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:56:56,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734301996] [2022-02-10 22:56:56,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:56:56,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:56:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:56:58,277 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:56:58,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:56:58,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734301996] [2022-02-10 22:56:58,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734301996] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:56:58,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251268694] [2022-02-10 22:56:58,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:56:58,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:56:58,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:56:58,279 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:56:58,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-10 22:56:58,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:56:58,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:56:58,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-10 22:56:58,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:56:59,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:56:59,831 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:56:59,874 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-02-10 22:56:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:56:59,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:57:00,191 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:57:00,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-02-10 22:57:00,193 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-10 22:57:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:57:01,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251268694] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:57:01,499 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:57:01,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 23] total 67 [2022-02-10 22:57:01,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306652573] [2022-02-10 22:57:01,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:57:01,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-02-10 22:57:01,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:57:01,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-02-10 22:57:01,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=4102, Unknown=2, NotChecked=0, Total=4422 [2022-02-10 22:57:01,500 INFO L87 Difference]: Start difference. First operand 75916 states and 280611 transitions. Second operand has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:57:18,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:57:18,294 INFO L93 Difference]: Finished difference Result 400204 states and 1460550 transitions. [2022-02-10 22:57:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-02-10 22:57:18,294 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 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 202 [2022-02-10 22:57:18,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:57:21,032 INFO L225 Difference]: With dead ends: 400204 [2022-02-10 22:57:21,032 INFO L226 Difference]: Without dead ends: 390794 [2022-02-10 22:57:21,034 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 367 SyntacticMatches, 8 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11722 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=4506, Invalid=31024, Unknown=2, NotChecked=0, Total=35532 [2022-02-10 22:57:21,034 INFO L934 BasicCegarLoop]: 440 mSDtfsCounter, 6425 mSDsluCounter, 17849 mSDsCounter, 0 mSdLazyCounter, 6183 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6425 SdHoareTripleChecker+Valid, 16690 SdHoareTripleChecker+Invalid, 7170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 6183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 502 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:57:21,034 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [6425 Valid, 16690 Invalid, 7170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 6183 Invalid, 0 Unknown, 502 Unchecked, 2.8s Time] [2022-02-10 22:57:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390794 states. [2022-02-10 22:57:28,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390794 to 147094. [2022-02-10 22:57:29,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147094 states, 147093 states have (on average 3.7853330885902117) internal successors, (556796), 147093 states have internal predecessors, (556796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:57:29,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147094 states to 147094 states and 556796 transitions. [2022-02-10 22:57:29,969 INFO L78 Accepts]: Start accepts. Automaton has 147094 states and 556796 transitions. Word has length 202 [2022-02-10 22:57:29,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:57:29,970 INFO L470 AbstractCegarLoop]: Abstraction has 147094 states and 556796 transitions. [2022-02-10 22:57:29,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:57:29,970 INFO L276 IsEmpty]: Start isEmpty. Operand 147094 states and 556796 transitions. [2022-02-10 22:57:30,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-10 22:57:30,863 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:57:30,864 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:57:30,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-02-10 22:57:31,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:57:31,078 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:57:31,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:57:31,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1771842876, now seen corresponding path program 9 times [2022-02-10 22:57:31,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:57:31,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060086796] [2022-02-10 22:57:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:57:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:57:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:57:32,527 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:57:32,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:57:32,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060086796] [2022-02-10 22:57:32,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060086796] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:57:32,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278446250] [2022-02-10 22:57:32,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:57:32,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:57:32,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:57:32,528 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:57:32,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-10 22:57:32,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:57:32,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:57:32,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-10 22:57:32,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:57:33,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:57:33,323 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:57:33,354 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-10 22:57:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-10 22:57:33,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:57:33,488 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1834 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1834) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-10 22:57:33,524 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:57:33,524 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-02-10 22:57:33,526 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-10 22:57:34,160 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-02-10 22:57:34,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278446250] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:57:34,160 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:57:34,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 12, 12] total 49 [2022-02-10 22:57:34,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256011682] [2022-02-10 22:57:34,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:57:34,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-02-10 22:57:34,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:57:34,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-02-10 22:57:34,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2123, Unknown=1, NotChecked=92, Total=2352 [2022-02-10 22:57:34,161 INFO L87 Difference]: Start difference. First operand 147094 states and 556796 transitions. Second operand has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:57:40,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:57:40,059 INFO L93 Difference]: Finished difference Result 193050 states and 721872 transitions. [2022-02-10 22:57:40,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-10 22:57:40,060 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 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 202 [2022-02-10 22:57:40,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:57:41,431 INFO L225 Difference]: With dead ends: 193050 [2022-02-10 22:57:41,431 INFO L226 Difference]: Without dead ends: 186906 [2022-02-10 22:57:41,432 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 388 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2859 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1667, Invalid=10768, Unknown=1, NotChecked=220, Total=12656 [2022-02-10 22:57:41,432 INFO L934 BasicCegarLoop]: 238 mSDtfsCounter, 2170 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 5445 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 366 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:57:41,432 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2170 Valid, 5445 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1909 Invalid, 0 Unknown, 366 Unchecked, 0.8s Time] [2022-02-10 22:57:41,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186906 states. [2022-02-10 22:57:45,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186906 to 143636. [2022-02-10 22:57:45,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143636 states, 143635 states have (on average 3.7910537125352457) internal successors, (544528), 143635 states have internal predecessors, (544528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:57:46,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143636 states to 143636 states and 544528 transitions. [2022-02-10 22:57:46,488 INFO L78 Accepts]: Start accepts. Automaton has 143636 states and 544528 transitions. Word has length 202 [2022-02-10 22:57:46,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:57:46,488 INFO L470 AbstractCegarLoop]: Abstraction has 143636 states and 544528 transitions. [2022-02-10 22:57:46,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:57:46,488 INFO L276 IsEmpty]: Start isEmpty. Operand 143636 states and 544528 transitions. [2022-02-10 22:57:46,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-10 22:57:46,834 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:57:46,834 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:57:46,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-02-10 22:57:47,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2022-02-10 22:57:47,051 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:57:47,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:57:47,051 INFO L85 PathProgramCache]: Analyzing trace with hash 82848270, now seen corresponding path program 10 times [2022-02-10 22:57:47,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:57:47,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837063377] [2022-02-10 22:57:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:57:47,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:57:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:57:50,573 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:57:50,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:57:50,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837063377] [2022-02-10 22:57:50,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837063377] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:57:50,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484180000] [2022-02-10 22:57:50,573 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:57:50,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:57:50,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:57:50,575 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:57:50,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-10 22:57:50,731 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:57:50,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:57:50,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 44 conjunts are in the unsatisfiable core [2022-02-10 22:57:50,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:57:52,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:57:52,302 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:57:52,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:57:52,456 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:57:52,509 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-10 22:57:52,612 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:57:52,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:57:52,954 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:57:52,955 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 159 [2022-02-10 22:57:52,957 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 126 [2022-02-10 22:57:52,961 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 102 [2022-02-10 22:57:54,832 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:57:54,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484180000] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:57:54,832 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:57:54,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 25, 25] total 87 [2022-02-10 22:57:54,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651074599] [2022-02-10 22:57:54,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:57:54,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-02-10 22:57:54,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:57:54,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-02-10 22:57:54,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=7063, Unknown=34, NotChecked=0, Total=7482 [2022-02-10 22:57:54,834 INFO L87 Difference]: Start difference. First operand 143636 states and 544528 transitions. Second operand has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:58:40,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:58:40,834 INFO L93 Difference]: Finished difference Result 727448 states and 2739609 transitions. [2022-02-10 22:58:40,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-02-10 22:58:40,834 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 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 202 [2022-02-10 22:58:40,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:58:46,884 INFO L225 Difference]: With dead ends: 727448 [2022-02-10 22:58:46,884 INFO L226 Difference]: Without dead ends: 704930 [2022-02-10 22:58:46,887 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 365 SyntacticMatches, 9 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26430 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=7838, Invalid=74039, Unknown=205, NotChecked=0, Total=82082 [2022-02-10 22:58:46,887 INFO L934 BasicCegarLoop]: 803 mSDtfsCounter, 10154 mSDsluCounter, 43309 mSDsCounter, 0 mSdLazyCounter, 13149 mSolverCounterSat, 692 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10154 SdHoareTripleChecker+Valid, 40023 SdHoareTripleChecker+Invalid, 22233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 692 IncrementalHoareTripleChecker+Valid, 13149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8392 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:58:46,888 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [10154 Valid, 40023 Invalid, 22233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [692 Valid, 13149 Invalid, 0 Unknown, 8392 Unchecked, 7.3s Time] [2022-02-10 22:58:48,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704930 states. [2022-02-10 22:59:07,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704930 to 242655. [2022-02-10 22:59:08,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242655 states, 242654 states have (on average 3.8465139663883554) internal successors, (933372), 242654 states have internal predecessors, (933372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:59:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242655 states to 242655 states and 933372 transitions. [2022-02-10 22:59:09,888 INFO L78 Accepts]: Start accepts. Automaton has 242655 states and 933372 transitions. Word has length 202 [2022-02-10 22:59:09,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:59:09,889 INFO L470 AbstractCegarLoop]: Abstraction has 242655 states and 933372 transitions. [2022-02-10 22:59:09,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:59:09,889 INFO L276 IsEmpty]: Start isEmpty. Operand 242655 states and 933372 transitions. [2022-02-10 22:59:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-10 22:59:10,989 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:59:10,989 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:59:11,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-10 22:59:11,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:59:11,196 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:59:11,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:59:11,196 INFO L85 PathProgramCache]: Analyzing trace with hash -327673536, now seen corresponding path program 11 times [2022-02-10 22:59:11,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:59:11,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464495676] [2022-02-10 22:59:11,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:59:11,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:59:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:59:12,748 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:59:12,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:59:12,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464495676] [2022-02-10 22:59:12,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464495676] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:59:12,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095270861] [2022-02-10 22:59:12,749 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:59:12,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:59:12,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:59:12,750 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:59:12,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-10 22:59:12,930 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-02-10 22:59:12,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:59:12,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 34 conjunts are in the unsatisfiable core [2022-02-10 22:59:12,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:59:13,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:59:13,653 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:59:13,684 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-10 22:59:13,724 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-10 22:59:13,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:59:13,788 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1933 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1933) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-10 22:59:13,803 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:59:13,803 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-02-10 22:59:13,805 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-10 22:59:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-02-10 22:59:14,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095270861] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:59:14,400 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:59:14,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 16, 12] total 48 [2022-02-10 22:59:14,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865881812] [2022-02-10 22:59:14,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:59:14,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-10 22:59:14,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:59:14,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-10 22:59:14,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2028, Unknown=1, NotChecked=90, Total=2256 [2022-02-10 22:59:14,402 INFO L87 Difference]: Start difference. First operand 242655 states and 933372 transitions. Second operand has 48 states, 48 states have (on average 9.270833333333334) internal successors, (445), 48 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:59:23,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:59:23,614 INFO L93 Difference]: Finished difference Result 313929 states and 1192252 transitions. [2022-02-10 22:59:23,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-10 22:59:23,615 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 9.270833333333334) internal successors, (445), 48 states have internal predecessors, (445), 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 202 [2022-02-10 22:59:23,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:59:27,322 INFO L225 Difference]: With dead ends: 313929 [2022-02-10 22:59:27,322 INFO L226 Difference]: Without dead ends: 306892 [2022-02-10 22:59:27,322 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 383 SyntacticMatches, 3 SemanticMatches, 115 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3205 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1625, Invalid=11718, Unknown=1, NotChecked=228, Total=13572 [2022-02-10 22:59:27,323 INFO L934 BasicCegarLoop]: 241 mSDtfsCounter, 2263 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 2560 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 2986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 318 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:59:27,323 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2263 Valid, 6637 Invalid, 2986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2560 Invalid, 0 Unknown, 318 Unchecked, 1.0s Time] [2022-02-10 22:59:28,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306892 states. [2022-02-10 22:59:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306892 to 243425. [2022-02-10 22:59:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243425 states, 243424 states have (on average 3.8519784409096887) internal successors, (937664), 243424 states have internal predecessors, (937664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:59:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243425 states to 243425 states and 937664 transitions. [2022-02-10 22:59:38,471 INFO L78 Accepts]: Start accepts. Automaton has 243425 states and 937664 transitions. Word has length 202 [2022-02-10 22:59:38,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:59:38,471 INFO L470 AbstractCegarLoop]: Abstraction has 243425 states and 937664 transitions. [2022-02-10 22:59:38,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 9.270833333333334) internal successors, (445), 48 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:59:38,471 INFO L276 IsEmpty]: Start isEmpty. Operand 243425 states and 937664 transitions. [2022-02-10 22:59:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-10 22:59:39,410 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:59:39,410 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:59:39,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-02-10 22:59:39,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:59:39,624 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 22:59:39,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:59:39,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1692263576, now seen corresponding path program 12 times [2022-02-10 22:59:39,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:59:39,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707592010] [2022-02-10 22:59:39,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:59:39,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:59:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:59:40,578 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:59:40,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:59:40,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707592010] [2022-02-10 22:59:40,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707592010] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:59:40,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656129177] [2022-02-10 22:59:40,579 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 22:59:40,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:59:40,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:59:40,580 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:59:40,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-10 22:59:40,767 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-02-10 22:59:40,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:59:40,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-10 22:59:40,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:59:41,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:59:41,537 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:59:41,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 22:59:41,609 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-10 22:59:41,636 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-10 22:59:41,691 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-10 22:59:41,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:59:41,761 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1983 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1983) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-10 22:59:41,815 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1983 (Array Int Int)) (v_ArrVal_1982 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1982) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1983) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-10 22:59:41,838 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:59:41,838 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 85 [2022-02-10 22:59:41,841 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2022-02-10 22:59:41,843 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-02-10 22:59:42,761 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-02-10 22:59:42,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656129177] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:59:42,761 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:59:42,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 14, 14] total 46 [2022-02-10 22:59:42,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7542689] [2022-02-10 22:59:42,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:59:42,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-10 22:59:42,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:59:42,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-10 22:59:42,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1757, Unknown=2, NotChecked=170, Total=2070 [2022-02-10 22:59:42,763 INFO L87 Difference]: Start difference. First operand 243425 states and 937664 transitions. Second operand has 46 states, 46 states have (on average 9.934782608695652) internal successors, (457), 46 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:59:48,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:59:48,614 INFO L93 Difference]: Finished difference Result 263834 states and 1009556 transitions. [2022-02-10 22:59:48,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-10 22:59:48,615 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 9.934782608695652) internal successors, (457), 46 states have internal predecessors, (457), 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 202 [2022-02-10 22:59:48,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:59:50,495 INFO L225 Difference]: With dead ends: 263834 [2022-02-10 22:59:50,495 INFO L226 Difference]: Without dead ends: 254658 [2022-02-10 22:59:50,495 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 384 SyntacticMatches, 4 SemanticMatches, 95 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1425, Invalid=7511, Unknown=2, NotChecked=374, Total=9312 [2022-02-10 22:59:50,500 INFO L934 BasicCegarLoop]: 192 mSDtfsCounter, 2069 mSDsluCounter, 5249 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 5151 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 732 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:59:50,500 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [2069 Valid, 5151 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1686 Invalid, 0 Unknown, 732 Unchecked, 0.7s Time] [2022-02-10 22:59:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254658 states. [2022-02-10 22:59:58,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254658 to 230641. [2022-02-10 22:59:59,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230641 states, 230640 states have (on average 3.8685006937218174) internal successors, (892231), 230640 states have internal predecessors, (892231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:00:01,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230641 states to 230641 states and 892231 transitions. [2022-02-10 23:00:01,605 INFO L78 Accepts]: Start accepts. Automaton has 230641 states and 892231 transitions. Word has length 202 [2022-02-10 23:00:01,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:00:01,605 INFO L470 AbstractCegarLoop]: Abstraction has 230641 states and 892231 transitions. [2022-02-10 23:00:01,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.934782608695652) internal successors, (457), 46 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:00:01,605 INFO L276 IsEmpty]: Start isEmpty. Operand 230641 states and 892231 transitions. [2022-02-10 23:00:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-10 23:00:03,077 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:00:03,077 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:00:03,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-10 23:00:03,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2022-02-10 23:00:03,295 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:00:03,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:00:03,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1515193959, now seen corresponding path program 1 times [2022-02-10 23:00:03,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:00:03,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694430075] [2022-02-10 23:00:03,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:00:03,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:00:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:00:05,781 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:00:05,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:00:05,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694430075] [2022-02-10 23:00:05,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694430075] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:00:05,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530732475] [2022-02-10 23:00:05,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:00:05,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:00:05,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:00:05,783 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:00:05,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-10 23:00:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:00:05,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-10 23:00:05,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:00:08,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 23:00:08,690 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-02-10 23:00:08,690 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2022-02-10 23:00:08,695 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-02-10 23:00:08,758 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-10 23:00:08,800 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:00:08,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:00:08,857 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2032 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2032) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))) is different from false [2022-02-10 23:00:09,324 INFO L353 Elim1Store]: treesize reduction 27, result has 75.2 percent of original size [2022-02-10 23:00:09,325 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 114 [2022-02-10 23:00:09,328 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-10 23:00:12,297 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-02-10 23:00:12,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530732475] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:00:12,297 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:00:12,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 35, 33] total 101 [2022-02-10 23:00:12,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325582142] [2022-02-10 23:00:12,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:00:12,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-02-10 23:00:12,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:00:12,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-02-10 23:00:12,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=869, Invalid=9034, Unknown=1, NotChecked=196, Total=10100 [2022-02-10 23:00:12,299 INFO L87 Difference]: Start difference. First operand 230641 states and 892231 transitions. Second operand has 101 states, 101 states have (on average 5.108910891089109) internal successors, (516), 101 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:00:34,549 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_2032 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2032) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))))) (and .cse0 (or .cse0 (not (<= 0 c_~q1_back~0)) (not (< c_~q2_back~0 c_~n2~0)) (not (< c_~q1_back~0 c_~n1~0)) (not (<= 0 c_~q2_back~0))))) is different from false [2022-02-10 23:00:46,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:00:46,304 INFO L93 Difference]: Finished difference Result 616132 states and 2358095 transitions. [2022-02-10 23:00:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-02-10 23:00:46,305 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 5.108910891089109) internal successors, (516), 101 states have internal predecessors, (516), 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 208 [2022-02-10 23:00:46,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:00:53,356 INFO L225 Difference]: With dead ends: 616132 [2022-02-10 23:00:53,356 INFO L226 Difference]: Without dead ends: 616132 [2022-02-10 23:00:53,358 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 361 SyntacticMatches, 26 SemanticMatches, 233 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 19318 ImplicationChecksByTransitivity, 27.5s TimeCoverageRelationStatistics Valid=7206, Invalid=46856, Unknown=2, NotChecked=926, Total=54990 [2022-02-10 23:00:53,358 INFO L934 BasicCegarLoop]: 502 mSDtfsCounter, 8059 mSDsluCounter, 21474 mSDsCounter, 0 mSdLazyCounter, 6234 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8059 SdHoareTripleChecker+Valid, 19685 SdHoareTripleChecker+Invalid, 11186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 6234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4381 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-10 23:00:53,358 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [8059 Valid, 19685 Invalid, 11186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [571 Valid, 6234 Invalid, 0 Unknown, 4381 Unchecked, 3.6s Time] [2022-02-10 23:00:55,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616132 states. [2022-02-10 23:01:09,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616132 to 250624. [2022-02-10 23:01:10,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250624 states, 250623 states have (on average 3.833866005913264) internal successors, (960855), 250623 states have internal predecessors, (960855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:01:12,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250624 states to 250624 states and 960855 transitions. [2022-02-10 23:01:12,273 INFO L78 Accepts]: Start accepts. Automaton has 250624 states and 960855 transitions. Word has length 208 [2022-02-10 23:01:12,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:01:12,273 INFO L470 AbstractCegarLoop]: Abstraction has 250624 states and 960855 transitions. [2022-02-10 23:01:12,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 5.108910891089109) internal successors, (516), 101 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:01:12,273 INFO L276 IsEmpty]: Start isEmpty. Operand 250624 states and 960855 transitions. [2022-02-10 23:01:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-10 23:01:13,310 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:01:13,310 INFO L515 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:01:13,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-02-10 23:01:13,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:01:13,523 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-10 23:01:13,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:01:13,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1725868805, now seen corresponding path program 2 times [2022-02-10 23:01:13,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:01:13,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831354099] [2022-02-10 23:01:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:01:13,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:01:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:01:15,837 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:01:15,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:01:15,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831354099] [2022-02-10 23:01:15,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831354099] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 23:01:15,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013592307] [2022-02-10 23:01:15,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 23:01:15,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 23:01:15,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:01:15,839 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 23:01:15,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-10 23:01:16,040 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 23:01:16,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 23:01:16,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 39 conjunts are in the unsatisfiable core [2022-02-10 23:01:16,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 23:01:17,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-10 23:01:17,104 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-02-10 23:01:17,189 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 8 [2022-02-10 23:01:17,217 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-10 23:01:17,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 23:01:17,304 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2081 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2081) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))) is different from false [2022-02-10 23:01:17,492 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 23:01:17,493 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 44 [2022-02-10 23:01:17,494 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-10 23:01:19,042 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-10 23:01:19,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013592307] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 23:01:19,042 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 23:01:19,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 22, 22] total 77 [2022-02-10 23:01:19,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956346671] [2022-02-10 23:01:19,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 23:01:19,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-02-10 23:01:19,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:01:19,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-02-10 23:01:19,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=5346, Unknown=1, NotChecked=148, Total=5852 [2022-02-10 23:01:19,044 INFO L87 Difference]: Start difference. First operand 250624 states and 960855 transitions. Second operand has 77 states, 77 states have (on average 6.35064935064935) internal successors, (489), 77 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:01:40,389 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2081 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2081) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))) (not (= |c_thread3Thread1of1ForFork2_~k~0#1| 0))) is different from false [2022-02-10 23:01:59,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:01:59,496 INFO L93 Difference]: Finished difference Result 1289238 states and 4962415 transitions. [2022-02-10 23:01:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-10 23:01:59,497 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 6.35064935064935) internal successors, (489), 77 states have internal predecessors, (489), 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 208 [2022-02-10 23:01:59,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:02:13,047 INFO L225 Difference]: With dead ends: 1289238 [2022-02-10 23:02:13,047 INFO L226 Difference]: Without dead ends: 1289238 [2022-02-10 23:02:13,050 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 402 SyntacticMatches, 56 SemanticMatches, 248 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 27241 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=5846, Invalid=55387, Unknown=31, NotChecked=986, Total=62250 [2022-02-10 23:02:13,050 INFO L934 BasicCegarLoop]: 477 mSDtfsCounter, 6763 mSDsluCounter, 21266 mSDsCounter, 0 mSdLazyCounter, 6052 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6763 SdHoareTripleChecker+Valid, 19409 SdHoareTripleChecker+Invalid, 14064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 6052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7545 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-10 23:02:13,051 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [6763 Valid, 19409 Invalid, 14064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [467 Valid, 6052 Invalid, 0 Unknown, 7545 Unchecked, 4.2s Time] [2022-02-10 23:02:15,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289238 states.