/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-counter-determinism.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 13:14:28,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 13:14:28,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 13:14:28,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-28 13:14:28,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-28 13:14:28,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-28 13:14:28,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-28 13:14:28,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-28 13:14:28,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-28 13:14:28,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-28 13:14:28,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-28 13:14:28,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-28 13:14:28,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 13:14:28,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 13:14:28,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 13:14:28,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 13:14:28,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 13:14:28,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 13:14:29,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 13:14:29,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 13:14:29,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 13:14:29,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 13:14:29,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 13:14:29,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 13:14:29,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-28 13:14:29,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 13:14:29,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 13:14:29,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 13:14:29,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-28 13:14:29,046 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 13:14:29,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 13:14:29,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 13:14:29,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 13:14:29,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 13:14:29,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 13:14:29,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 13:14:29,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 13:14:29,049 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 13:14:29,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 13:14:29,049 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 13:14:29,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 13:14:29,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 13:14:29,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 13:14:29,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 13:14:29,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 13:14:29,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 13:14:29,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 13:14:29,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 13:14:29,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 13:14:29,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 13:14:29,052 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 13:14:29,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 13:14:29,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 13:14:29,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 13:14:29,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 13:14:29,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 13:14:29,271 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 13:14:29,271 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 13:14:29,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-determinism.wvr.c [2022-01-28 13:14:29,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0b9034c3/02c09324dc8b4535968db489697dad86/FLAGb5f57d4d2 [2022-01-28 13:14:29,652 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 13:14:29,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-determinism.wvr.c [2022-01-28 13:14:29,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0b9034c3/02c09324dc8b4535968db489697dad86/FLAGb5f57d4d2 [2022-01-28 13:14:30,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0b9034c3/02c09324dc8b4535968db489697dad86 [2022-01-28 13:14:30,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 13:14:30,085 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 13:14:30,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 13:14:30,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 13:14:30,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 13:14:30,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f34a395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30, skipping insertion in model container [2022-01-28 13:14:30,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 13:14:30,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 13:14:30,256 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-counter-determinism.wvr.c[2476,2489] [2022-01-28 13:14:30,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 13:14:30,263 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 13:14:30,279 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-counter-determinism.wvr.c[2476,2489] [2022-01-28 13:14:30,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 13:14:30,289 INFO L208 MainTranslator]: Completed translation [2022-01-28 13:14:30,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30 WrapperNode [2022-01-28 13:14:30,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 13:14:30,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 13:14:30,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 13:14:30,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 13:14:30,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,315 INFO L137 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2022-01-28 13:14:30,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 13:14:30,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 13:14:30,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 13:14:30,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 13:14:30,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 13:14:30,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 13:14:30,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 13:14:30,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 13:14:30,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (1/1) ... [2022-01-28 13:14:30,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 13:14:30,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:14:30,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-28 13:14:30,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-28 13:14:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-28 13:14:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-28 13:14:30,396 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-28 13:14:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-28 13:14:30,396 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-28 13:14:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-28 13:14:30,396 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-28 13:14:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-28 13:14:30,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-28 13:14:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-28 13:14:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 13:14:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 13:14:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-28 13:14:30,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-28 13:14:30,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 13:14:30,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 13:14:30,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-28 13:14:30,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 13:14:30,400 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 13:14:30,471 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 13:14:30,473 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 13:14:30,611 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 13:14:30,652 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 13:14:30,652 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-28 13:14:30,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:14:30 BoogieIcfgContainer [2022-01-28 13:14:30,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 13:14:30,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 13:14:30,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 13:14:30,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 13:14:30,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:14:30" (1/3) ... [2022-01-28 13:14:30,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a46a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:14:30, skipping insertion in model container [2022-01-28 13:14:30,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:14:30" (2/3) ... [2022-01-28 13:14:30,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a46a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:14:30, skipping insertion in model container [2022-01-28 13:14:30,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:14:30" (3/3) ... [2022-01-28 13:14:30,663 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2022-01-28 13:14:30,666 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 13:14:30,666 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 13:14:30,667 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 13:14:30,669 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 13:14:30,699 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,700 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,700 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,700 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,700 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,700 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,700 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,701 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,701 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,701 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,701 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,701 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,701 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,701 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,702 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,702 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,702 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,702 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,703 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,703 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,704 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,705 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,706 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,707 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,707 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,707 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,707 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,707 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,707 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,708 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,709 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,709 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,709 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,709 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,709 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,709 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,709 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,709 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,710 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,710 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,710 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,710 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,710 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,710 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,711 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,712 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,712 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,712 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,712 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,712 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,712 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,713 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,713 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,713 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,713 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,713 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,713 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,713 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,713 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,716 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,716 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,717 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,717 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,717 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,717 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,718 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,718 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,718 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,719 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,719 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,719 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,719 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,719 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,720 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,720 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,720 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,720 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,720 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,720 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,720 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 13:14:30,724 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-28 13:14:30,752 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 13:14:30,756 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-28 13:14:30,756 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-28 13:14:30,765 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 128 places, 124 transitions, 280 flow [2022-01-28 13:14:32,047 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33651 states, 33650 states have (on average 4.972095096582467) internal successors, (167311), 33650 states have internal predecessors, (167311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:32,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 33651 states, 33650 states have (on average 4.972095096582467) internal successors, (167311), 33650 states have internal predecessors, (167311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:32,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-28 13:14:32,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:14:32,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:14:32,530 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:14:32,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:14:32,537 INFO L85 PathProgramCache]: Analyzing trace with hash 741099381, now seen corresponding path program 1 times [2022-01-28 13:14:32,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:14:32,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160693924] [2022-01-28 13:14:32,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:14:32,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:14:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:14:32,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:14:32,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:14:32,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160693924] [2022-01-28 13:14:32,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160693924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:14:32,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:14:32,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-28 13:14:32,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306024327] [2022-01-28 13:14:32,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:14:32,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-28 13:14:32,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:14:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-28 13:14:32,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-28 13:14:32,772 INFO L87 Difference]: Start difference. First operand has 33651 states, 33650 states have (on average 4.972095096582467) internal successors, (167311), 33650 states have internal predecessors, (167311), 0 states have call successors, (0), 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 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:33,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:14:33,438 INFO L93 Difference]: Finished difference Result 33651 states and 153288 transitions. [2022-01-28 13:14:33,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 13:14:33,441 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-28 13:14:33,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:14:33,951 INFO L225 Difference]: With dead ends: 33651 [2022-01-28 13:14:33,951 INFO L226 Difference]: Without dead ends: 33650 [2022-01-28 13:14:33,952 INFO L932 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 [2022-01-28 13:14:33,957 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:14:33,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 13:14:34,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33650 states. [2022-01-28 13:14:35,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33650 to 33650. [2022-01-28 13:14:35,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33650 states, 33649 states have (on average 4.555469701922791) internal successors, (153287), 33649 states have internal predecessors, (153287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:35,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33650 states to 33650 states and 153287 transitions. [2022-01-28 13:14:35,725 INFO L78 Accepts]: Start accepts. Automaton has 33650 states and 153287 transitions. Word has length 81 [2022-01-28 13:14:35,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:14:35,725 INFO L470 AbstractCegarLoop]: Abstraction has 33650 states and 153287 transitions. [2022-01-28 13:14:35,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:35,726 INFO L276 IsEmpty]: Start isEmpty. Operand 33650 states and 153287 transitions. [2022-01-28 13:14:35,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-28 13:14:35,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:14:35,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:14:35,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 13:14:35,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:14:35,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:14:35,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1887062473, now seen corresponding path program 1 times [2022-01-28 13:14:35,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:14:35,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627363618] [2022-01-28 13:14:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:14:35,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:14:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:14:36,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:14:36,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:14:36,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627363618] [2022-01-28 13:14:36,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627363618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:14:36,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:14:36,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:14:36,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927287143] [2022-01-28 13:14:36,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:14:36,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:14:36,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:14:36,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:14:36,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:14:36,168 INFO L87 Difference]: Start difference. First operand 33650 states and 153287 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:36,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:14:36,771 INFO L93 Difference]: Finished difference Result 51344 states and 228410 transitions. [2022-01-28 13:14:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:14:36,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-01-28 13:14:36,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:14:37,292 INFO L225 Difference]: With dead ends: 51344 [2022-01-28 13:14:37,307 INFO L226 Difference]: Without dead ends: 47756 [2022-01-28 13:14:37,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:14:37,315 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 134 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:14:37,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 440 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 13:14:37,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47756 states. [2022-01-28 13:14:39,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47756 to 40946. [2022-01-28 13:14:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40946 states, 40945 states have (on average 4.5106850653315425) internal successors, (184690), 40945 states have internal predecessors, (184690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40946 states to 40946 states and 184690 transitions. [2022-01-28 13:14:39,449 INFO L78 Accepts]: Start accepts. Automaton has 40946 states and 184690 transitions. Word has length 81 [2022-01-28 13:14:39,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:14:39,451 INFO L470 AbstractCegarLoop]: Abstraction has 40946 states and 184690 transitions. [2022-01-28 13:14:39,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 40946 states and 184690 transitions. [2022-01-28 13:14:39,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:14:39,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:14:39,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:14:39,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 13:14:39,843 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:14:39,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:14:39,844 INFO L85 PathProgramCache]: Analyzing trace with hash 100647351, now seen corresponding path program 1 times [2022-01-28 13:14:39,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:14:39,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163978678] [2022-01-28 13:14:39,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:14:39,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:14:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:14:39,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:14:39,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:14:39,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163978678] [2022-01-28 13:14:39,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163978678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:14:39,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:14:39,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:14:39,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425914360] [2022-01-28 13:14:39,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:14:39,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:14:39,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:14:39,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:14:39,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:14:39,978 INFO L87 Difference]: Start difference. First operand 40946 states and 184690 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:40,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:14:40,693 INFO L93 Difference]: Finished difference Result 54404 states and 243172 transitions. [2022-01-28 13:14:40,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:14:40,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:14:40,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:14:41,023 INFO L225 Difference]: With dead ends: 54404 [2022-01-28 13:14:41,023 INFO L226 Difference]: Without dead ends: 53180 [2022-01-28 13:14:41,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-28 13:14:41,024 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 159 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:14:41,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 423 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:14:41,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53180 states. [2022-01-28 13:14:42,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53180 to 40280. [2022-01-28 13:14:42,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40280 states, 40279 states have (on average 4.5210655676655325) internal successors, (182104), 40279 states have internal predecessors, (182104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:42,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40280 states to 40280 states and 182104 transitions. [2022-01-28 13:14:42,901 INFO L78 Accepts]: Start accepts. Automaton has 40280 states and 182104 transitions. Word has length 86 [2022-01-28 13:14:42,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:14:42,902 INFO L470 AbstractCegarLoop]: Abstraction has 40280 states and 182104 transitions. [2022-01-28 13:14:42,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:42,902 INFO L276 IsEmpty]: Start isEmpty. Operand 40280 states and 182104 transitions. [2022-01-28 13:14:43,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:14:43,017 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:14:43,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:14:43,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 13:14:43,018 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:14:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:14:43,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1556135173, now seen corresponding path program 1 times [2022-01-28 13:14:43,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:14:43,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063248902] [2022-01-28 13:14:43,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:14:43,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:14:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:14:43,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:14:43,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:14:43,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063248902] [2022-01-28 13:14:43,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063248902] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:14:43,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044154297] [2022-01-28 13:14:43,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:14:43,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:14:43,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:14:43,093 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) [2022-01-28 13:14:43,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-28 13:14:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:14:43,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-28 13:14:43,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:14:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:14:43,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:14:43,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:14:43,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044154297] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:14:43,511 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:14:43,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-01-28 13:14:43,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951117875] [2022-01-28 13:14:43,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:14:43,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:14:43,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:14:43,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:14:43,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:14:43,514 INFO L87 Difference]: Start difference. First operand 40280 states and 182104 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:44,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:14:44,774 INFO L93 Difference]: Finished difference Result 70244 states and 317212 transitions. [2022-01-28 13:14:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:14:44,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 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 86 [2022-01-28 13:14:44,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:14:45,138 INFO L225 Difference]: With dead ends: 70244 [2022-01-28 13:14:45,138 INFO L226 Difference]: Without dead ends: 70244 [2022-01-28 13:14:45,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 168 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:14:45,139 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 401 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:14:45,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 1021 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:14:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70244 states. [2022-01-28 13:14:46,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70244 to 43574. [2022-01-28 13:14:46,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43574 states, 43573 states have (on average 4.528148165148142) internal successors, (197305), 43573 states have internal predecessors, (197305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:47,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43574 states to 43574 states and 197305 transitions. [2022-01-28 13:14:47,393 INFO L78 Accepts]: Start accepts. Automaton has 43574 states and 197305 transitions. Word has length 86 [2022-01-28 13:14:47,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:14:47,394 INFO L470 AbstractCegarLoop]: Abstraction has 43574 states and 197305 transitions. [2022-01-28 13:14:47,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:47,394 INFO L276 IsEmpty]: Start isEmpty. Operand 43574 states and 197305 transitions. [2022-01-28 13:14:47,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:14:47,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:14:47,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:14:47,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-28 13:14:47,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:14:47,756 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:14:47,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:14:47,757 INFO L85 PathProgramCache]: Analyzing trace with hash 818687697, now seen corresponding path program 2 times [2022-01-28 13:14:47,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:14:47,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60583498] [2022-01-28 13:14:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:14:47,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:14:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:14:47,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:14:47,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:14:47,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60583498] [2022-01-28 13:14:47,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60583498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:14:47,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:14:47,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:14:47,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687025994] [2022-01-28 13:14:47,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:14:47,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:14:47,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:14:47,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:14:47,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:14:47,827 INFO L87 Difference]: Start difference. First operand 43574 states and 197305 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:48,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:14:48,782 INFO L93 Difference]: Finished difference Result 78128 states and 347527 transitions. [2022-01-28 13:14:48,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:14:48,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:14:48,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:14:49,620 INFO L225 Difference]: With dead ends: 78128 [2022-01-28 13:14:49,620 INFO L226 Difference]: Without dead ends: 77030 [2022-01-28 13:14:49,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:14:49,621 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 215 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:14:49,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 481 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:14:49,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77030 states. [2022-01-28 13:14:51,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77030 to 43754. [2022-01-28 13:14:51,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43754 states, 43753 states have (on average 4.527209562772838) internal successors, (198079), 43753 states have internal predecessors, (198079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43754 states to 43754 states and 198079 transitions. [2022-01-28 13:14:51,787 INFO L78 Accepts]: Start accepts. Automaton has 43754 states and 198079 transitions. Word has length 86 [2022-01-28 13:14:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:14:51,787 INFO L470 AbstractCegarLoop]: Abstraction has 43754 states and 198079 transitions. [2022-01-28 13:14:51,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 43754 states and 198079 transitions. [2022-01-28 13:14:52,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:14:52,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:14:52,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:14:52,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 13:14:52,196 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:14:52,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:14:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash -691215523, now seen corresponding path program 2 times [2022-01-28 13:14:52,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:14:52,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713012766] [2022-01-28 13:14:52,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:14:52,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:14:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:14:52,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:14:52,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:14:52,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713012766] [2022-01-28 13:14:52,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713012766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:14:52,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:14:52,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:14:52,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374310972] [2022-01-28 13:14:52,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:14:52,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:14:52,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:14:52,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:14:52,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:14:52,310 INFO L87 Difference]: Start difference. First operand 43754 states and 198079 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:53,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:14:53,027 INFO L93 Difference]: Finished difference Result 62162 states and 280021 transitions. [2022-01-28 13:14:53,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 13:14:53,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:14:53,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:14:53,351 INFO L225 Difference]: With dead ends: 62162 [2022-01-28 13:14:53,351 INFO L226 Difference]: Without dead ends: 62162 [2022-01-28 13:14:53,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:14:53,354 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 125 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 13:14:53,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 405 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 13:14:53,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62162 states. [2022-01-28 13:14:54,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62162 to 45260. [2022-01-28 13:14:55,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45260 states, 45259 states have (on average 4.529110232219006) internal successors, (204983), 45259 states have internal predecessors, (204983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:55,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45260 states to 45260 states and 204983 transitions. [2022-01-28 13:14:55,252 INFO L78 Accepts]: Start accepts. Automaton has 45260 states and 204983 transitions. Word has length 86 [2022-01-28 13:14:55,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:14:55,253 INFO L470 AbstractCegarLoop]: Abstraction has 45260 states and 204983 transitions. [2022-01-28 13:14:55,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:55,253 INFO L276 IsEmpty]: Start isEmpty. Operand 45260 states and 204983 transitions. [2022-01-28 13:14:55,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:14:55,734 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:14:55,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:14:55,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-28 13:14:55,735 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:14:55,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:14:55,736 INFO L85 PathProgramCache]: Analyzing trace with hash 538899771, now seen corresponding path program 3 times [2022-01-28 13:14:55,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:14:55,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882092286] [2022-01-28 13:14:55,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:14:55,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:14:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:14:55,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:14:55,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:14:55,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882092286] [2022-01-28 13:14:55,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882092286] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:14:55,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:14:55,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:14:55,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902314245] [2022-01-28 13:14:55,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:14:55,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:14:55,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:14:55,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:14:55,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:14:55,824 INFO L87 Difference]: Start difference. First operand 45260 states and 204983 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:56,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:14:56,698 INFO L93 Difference]: Finished difference Result 75338 states and 340393 transitions. [2022-01-28 13:14:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:14:56,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:14:56,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:14:57,152 INFO L225 Difference]: With dead ends: 75338 [2022-01-28 13:14:57,152 INFO L226 Difference]: Without dead ends: 75338 [2022-01-28 13:14:57,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:14:57,165 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 201 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:14:57,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 466 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:14:57,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75338 states. [2022-01-28 13:14:59,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75338 to 44324. [2022-01-28 13:14:59,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44324 states, 44323 states have (on average 4.528100534711098) internal successors, (200699), 44323 states have internal predecessors, (200699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:59,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44324 states to 44324 states and 200699 transitions. [2022-01-28 13:14:59,538 INFO L78 Accepts]: Start accepts. Automaton has 44324 states and 200699 transitions. Word has length 86 [2022-01-28 13:14:59,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:14:59,539 INFO L470 AbstractCegarLoop]: Abstraction has 44324 states and 200699 transitions. [2022-01-28 13:14:59,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:14:59,540 INFO L276 IsEmpty]: Start isEmpty. Operand 44324 states and 200699 transitions. [2022-01-28 13:14:59,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:14:59,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:14:59,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:14:59,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-28 13:14:59,678 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:14:59,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:14:59,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1869302141, now seen corresponding path program 3 times [2022-01-28 13:14:59,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:14:59,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820558531] [2022-01-28 13:14:59,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:14:59,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:14:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:14:59,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:14:59,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:14:59,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820558531] [2022-01-28 13:14:59,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820558531] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:14:59,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:14:59,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:14:59,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312940602] [2022-01-28 13:14:59,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:14:59,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:14:59,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:14:59,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:14:59,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:14:59,761 INFO L87 Difference]: Start difference. First operand 44324 states and 200699 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:01,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:01,300 INFO L93 Difference]: Finished difference Result 110492 states and 494187 transitions. [2022-01-28 13:15:01,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:15:01,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:02,097 INFO L225 Difference]: With dead ends: 110492 [2022-01-28 13:15:02,097 INFO L226 Difference]: Without dead ends: 108854 [2022-01-28 13:15:02,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:02,098 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 221 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:02,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 616 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:02,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108854 states. [2022-01-28 13:15:04,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108854 to 50864. [2022-01-28 13:15:05,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50864 states, 50863 states have (on average 4.565263551107878) internal successors, (232203), 50863 states have internal predecessors, (232203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:05,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50864 states to 50864 states and 232203 transitions. [2022-01-28 13:15:05,627 INFO L78 Accepts]: Start accepts. Automaton has 50864 states and 232203 transitions. Word has length 86 [2022-01-28 13:15:05,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:05,627 INFO L470 AbstractCegarLoop]: Abstraction has 50864 states and 232203 transitions. [2022-01-28 13:15:05,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:05,627 INFO L276 IsEmpty]: Start isEmpty. Operand 50864 states and 232203 transitions. [2022-01-28 13:15:05,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:05,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:05,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:05,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-28 13:15:05,784 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:05,785 INFO L85 PathProgramCache]: Analyzing trace with hash 926791667, now seen corresponding path program 4 times [2022-01-28 13:15:05,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:05,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486373395] [2022-01-28 13:15:05,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:05,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:05,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:05,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486373395] [2022-01-28 13:15:05,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486373395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:05,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:05,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:15:05,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004894761] [2022-01-28 13:15:05,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:05,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:15:05,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:05,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:15:05,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:15:05,849 INFO L87 Difference]: Start difference. First operand 50864 states and 232203 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:08,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:08,005 INFO L93 Difference]: Finished difference Result 98039 states and 439870 transitions. [2022-01-28 13:15:08,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 13:15:08,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:08,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:08,927 INFO L225 Difference]: With dead ends: 98039 [2022-01-28 13:15:08,927 INFO L226 Difference]: Without dead ends: 96473 [2022-01-28 13:15:08,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:08,929 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 168 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:08,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 506 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-28 13:15:09,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96473 states. [2022-01-28 13:15:11,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96473 to 52970. [2022-01-28 13:15:11,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52970 states, 52969 states have (on average 4.54828295795654) internal successors, (240918), 52969 states have internal predecessors, (240918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52970 states to 52970 states and 240918 transitions. [2022-01-28 13:15:11,816 INFO L78 Accepts]: Start accepts. Automaton has 52970 states and 240918 transitions. Word has length 86 [2022-01-28 13:15:11,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:11,817 INFO L470 AbstractCegarLoop]: Abstraction has 52970 states and 240918 transitions. [2022-01-28 13:15:11,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:11,817 INFO L276 IsEmpty]: Start isEmpty. Operand 52970 states and 240918 transitions. [2022-01-28 13:15:11,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:11,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:11,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:11,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-28 13:15:11,980 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:11,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:11,981 INFO L85 PathProgramCache]: Analyzing trace with hash 478926261, now seen corresponding path program 5 times [2022-01-28 13:15:11,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:11,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829321879] [2022-01-28 13:15:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:11,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:12,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:12,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:12,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829321879] [2022-01-28 13:15:12,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829321879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:12,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:12,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:15:12,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433331824] [2022-01-28 13:15:12,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:12,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:15:12,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:12,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:15:12,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:15:12,067 INFO L87 Difference]: Start difference. First operand 52970 states and 240918 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:13,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:13,212 INFO L93 Difference]: Finished difference Result 85505 states and 383511 transitions. [2022-01-28 13:15:13,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:15:13,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:13,649 INFO L225 Difference]: With dead ends: 85505 [2022-01-28 13:15:13,650 INFO L226 Difference]: Without dead ends: 82607 [2022-01-28 13:15:13,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-28 13:15:13,650 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 188 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:13,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 431 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:13,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82607 states. [2022-01-28 13:15:15,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82607 to 52790. [2022-01-28 13:15:15,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52790 states, 52789 states have (on average 4.539468449866449) internal successors, (239634), 52789 states have internal predecessors, (239634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:16,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52790 states to 52790 states and 239634 transitions. [2022-01-28 13:15:16,309 INFO L78 Accepts]: Start accepts. Automaton has 52790 states and 239634 transitions. Word has length 86 [2022-01-28 13:15:16,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:16,309 INFO L470 AbstractCegarLoop]: Abstraction has 52790 states and 239634 transitions. [2022-01-28 13:15:16,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:16,309 INFO L276 IsEmpty]: Start isEmpty. Operand 52790 states and 239634 transitions. [2022-01-28 13:15:16,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:16,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:16,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:16,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-28 13:15:16,463 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:16,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:16,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1260315515, now seen corresponding path program 6 times [2022-01-28 13:15:16,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:16,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4821923] [2022-01-28 13:15:16,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:16,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:16,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:16,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:16,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4821923] [2022-01-28 13:15:16,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4821923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:16,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:16,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:15:16,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881404749] [2022-01-28 13:15:16,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:16,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:15:16,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:16,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:15:16,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:16,506 INFO L87 Difference]: Start difference. First operand 52790 states and 239634 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:17,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:17,721 INFO L93 Difference]: Finished difference Result 100238 states and 453654 transitions. [2022-01-28 13:15:17,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:15:17,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:17,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:18,693 INFO L225 Difference]: With dead ends: 100238 [2022-01-28 13:15:18,693 INFO L226 Difference]: Without dead ends: 98600 [2022-01-28 13:15:18,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:18,694 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 210 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:18,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 466 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:18,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98600 states. [2022-01-28 13:15:20,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98600 to 54893. [2022-01-28 13:15:21,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54893 states, 54892 states have (on average 4.540315528674488) internal successors, (249227), 54892 states have internal predecessors, (249227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:21,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54893 states to 54893 states and 249227 transitions. [2022-01-28 13:15:21,613 INFO L78 Accepts]: Start accepts. Automaton has 54893 states and 249227 transitions. Word has length 86 [2022-01-28 13:15:21,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:21,613 INFO L470 AbstractCegarLoop]: Abstraction has 54893 states and 249227 transitions. [2022-01-28 13:15:21,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:21,614 INFO L276 IsEmpty]: Start isEmpty. Operand 54893 states and 249227 transitions. [2022-01-28 13:15:21,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:21,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:21,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:21,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-28 13:15:21,777 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:21,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:21,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1792750199, now seen corresponding path program 7 times [2022-01-28 13:15:21,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:21,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567791117] [2022-01-28 13:15:21,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:21,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:21,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:21,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:21,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567791117] [2022-01-28 13:15:21,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567791117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:21,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:21,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:15:21,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312278228] [2022-01-28 13:15:21,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:21,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:15:21,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:21,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:15:21,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:21,838 INFO L87 Difference]: Start difference. First operand 54893 states and 249227 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:22,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:22,851 INFO L93 Difference]: Finished difference Result 77150 states and 348494 transitions. [2022-01-28 13:15:22,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:15:22,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:22,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:23,188 INFO L225 Difference]: With dead ends: 77150 [2022-01-28 13:15:23,188 INFO L226 Difference]: Without dead ends: 77150 [2022-01-28 13:15:23,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:23,189 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 151 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:23,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 708 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77150 states. [2022-01-28 13:15:25,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77150 to 56009. [2022-01-28 13:15:25,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56009 states, 56008 states have (on average 4.544350807027567) internal successors, (254520), 56008 states have internal predecessors, (254520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56009 states to 56009 states and 254520 transitions. [2022-01-28 13:15:25,593 INFO L78 Accepts]: Start accepts. Automaton has 56009 states and 254520 transitions. Word has length 86 [2022-01-28 13:15:25,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:25,594 INFO L470 AbstractCegarLoop]: Abstraction has 56009 states and 254520 transitions. [2022-01-28 13:15:25,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:25,594 INFO L276 IsEmpty]: Start isEmpty. Operand 56009 states and 254520 transitions. [2022-01-28 13:15:25,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:25,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:25,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:25,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-28 13:15:25,760 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:25,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:25,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1571446077, now seen corresponding path program 4 times [2022-01-28 13:15:25,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:25,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282063886] [2022-01-28 13:15:25,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:25,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:26,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:26,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282063886] [2022-01-28 13:15:26,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282063886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:26,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:26,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:15:26,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905984898] [2022-01-28 13:15:26,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:26,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:15:26,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:26,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:15:26,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:15:26,148 INFO L87 Difference]: Start difference. First operand 56009 states and 254520 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:27,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:27,078 INFO L93 Difference]: Finished difference Result 93608 states and 421800 transitions. [2022-01-28 13:15:27,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 13:15:27,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:27,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:27,733 INFO L225 Difference]: With dead ends: 93608 [2022-01-28 13:15:27,733 INFO L226 Difference]: Without dead ends: 93608 [2022-01-28 13:15:27,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:15:27,734 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 151 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:27,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 386 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:27,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93608 states. [2022-01-28 13:15:30,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93608 to 58043. [2022-01-28 13:15:30,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58043 states, 58042 states have (on average 4.537989731573688) internal successors, (263394), 58042 states have internal predecessors, (263394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:30,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58043 states to 58043 states and 263394 transitions. [2022-01-28 13:15:30,438 INFO L78 Accepts]: Start accepts. Automaton has 58043 states and 263394 transitions. Word has length 86 [2022-01-28 13:15:30,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:30,438 INFO L470 AbstractCegarLoop]: Abstraction has 58043 states and 263394 transitions. [2022-01-28 13:15:30,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:30,438 INFO L276 IsEmpty]: Start isEmpty. Operand 58043 states and 263394 transitions. [2022-01-28 13:15:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:30,913 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:30,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:30,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-28 13:15:30,914 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:30,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:30,914 INFO L85 PathProgramCache]: Analyzing trace with hash -341330783, now seen corresponding path program 5 times [2022-01-28 13:15:30,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:30,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395965701] [2022-01-28 13:15:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:30,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:30,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:30,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:30,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395965701] [2022-01-28 13:15:30,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395965701] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:30,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:30,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:15:30,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326924553] [2022-01-28 13:15:30,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:30,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:15:30,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:30,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:15:30,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:30,995 INFO L87 Difference]: Start difference. First operand 58043 states and 263394 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:32,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:32,045 INFO L93 Difference]: Finished difference Result 91238 states and 407423 transitions. [2022-01-28 13:15:32,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:15:32,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:32,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:32,681 INFO L225 Difference]: With dead ends: 91238 [2022-01-28 13:15:32,681 INFO L226 Difference]: Without dead ends: 89780 [2022-01-28 13:15:32,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:32,683 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 230 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:32,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 384 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:32,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89780 states. [2022-01-28 13:15:34,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89780 to 53606. [2022-01-28 13:15:35,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53606 states, 53605 states have (on average 4.523365357709169) internal successors, (242475), 53605 states have internal predecessors, (242475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:35,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53606 states to 53606 states and 242475 transitions. [2022-01-28 13:15:35,645 INFO L78 Accepts]: Start accepts. Automaton has 53606 states and 242475 transitions. Word has length 86 [2022-01-28 13:15:35,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:35,645 INFO L470 AbstractCegarLoop]: Abstraction has 53606 states and 242475 transitions. [2022-01-28 13:15:35,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:35,645 INFO L276 IsEmpty]: Start isEmpty. Operand 53606 states and 242475 transitions. [2022-01-28 13:15:35,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:35,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:35,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:35,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-28 13:15:35,869 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:35,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:35,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1561519303, now seen corresponding path program 6 times [2022-01-28 13:15:35,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:35,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013685538] [2022-01-28 13:15:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:35,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:35,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:35,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:35,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013685538] [2022-01-28 13:15:35,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013685538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:35,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:35,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:15:35,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050672155] [2022-01-28 13:15:35,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:35,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:15:35,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:35,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:15:35,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:15:35,948 INFO L87 Difference]: Start difference. First operand 53606 states and 242475 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:36,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:36,994 INFO L93 Difference]: Finished difference Result 82670 states and 369701 transitions. [2022-01-28 13:15:36,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 13:15:36,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:36,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:37,650 INFO L225 Difference]: With dead ends: 82670 [2022-01-28 13:15:37,650 INFO L226 Difference]: Without dead ends: 81392 [2022-01-28 13:15:37,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:37,667 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 145 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:37,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 411 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:37,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81392 states. [2022-01-28 13:15:39,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81392 to 52367. [2022-01-28 13:15:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52367 states, 52366 states have (on average 4.535557422755223) internal successors, (237509), 52366 states have internal predecessors, (237509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:40,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52367 states to 52367 states and 237509 transitions. [2022-01-28 13:15:40,399 INFO L78 Accepts]: Start accepts. Automaton has 52367 states and 237509 transitions. Word has length 86 [2022-01-28 13:15:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:40,399 INFO L470 AbstractCegarLoop]: Abstraction has 52367 states and 237509 transitions. [2022-01-28 13:15:40,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 52367 states and 237509 transitions. [2022-01-28 13:15:40,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:40,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:40,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:40,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-28 13:15:40,550 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:40,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:40,551 INFO L85 PathProgramCache]: Analyzing trace with hash 59267419, now seen corresponding path program 7 times [2022-01-28 13:15:40,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:40,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400709181] [2022-01-28 13:15:40,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:40,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:40,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:40,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:40,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400709181] [2022-01-28 13:15:40,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400709181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:40,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:40,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:15:40,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645176809] [2022-01-28 13:15:40,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:40,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:15:40,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:40,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:15:40,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:15:40,602 INFO L87 Difference]: Start difference. First operand 52367 states and 237509 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:41,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:41,481 INFO L93 Difference]: Finished difference Result 62549 states and 283434 transitions. [2022-01-28 13:15:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:15:41,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:41,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:41,800 INFO L225 Difference]: With dead ends: 62549 [2022-01-28 13:15:41,800 INFO L226 Difference]: Without dead ends: 61091 [2022-01-28 13:15:41,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-28 13:15:41,801 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 102 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:41,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 450 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:42,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61091 states. [2022-01-28 13:15:43,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61091 to 50123. [2022-01-28 13:15:43,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50123 states, 50122 states have (on average 4.5509357168508835) internal successors, (228102), 50122 states have internal predecessors, (228102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50123 states to 50123 states and 228102 transitions. [2022-01-28 13:15:44,033 INFO L78 Accepts]: Start accepts. Automaton has 50123 states and 228102 transitions. Word has length 86 [2022-01-28 13:15:44,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:44,033 INFO L470 AbstractCegarLoop]: Abstraction has 50123 states and 228102 transitions. [2022-01-28 13:15:44,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:44,033 INFO L276 IsEmpty]: Start isEmpty. Operand 50123 states and 228102 transitions. [2022-01-28 13:15:44,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:44,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:44,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:44,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-28 13:15:44,229 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:44,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:44,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1526260539, now seen corresponding path program 8 times [2022-01-28 13:15:44,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:44,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539503796] [2022-01-28 13:15:44,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:44,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:44,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:44,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:44,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539503796] [2022-01-28 13:15:44,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539503796] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:44,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:44,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:15:44,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992144312] [2022-01-28 13:15:44,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:44,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:15:44,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:44,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:15:44,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:44,276 INFO L87 Difference]: Start difference. First operand 50123 states and 228102 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:45,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:45,174 INFO L93 Difference]: Finished difference Result 77939 states and 355218 transitions. [2022-01-28 13:15:45,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:15:45,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:45,867 INFO L225 Difference]: With dead ends: 77939 [2022-01-28 13:15:45,867 INFO L226 Difference]: Without dead ends: 77939 [2022-01-28 13:15:45,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:45,868 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 149 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:45,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 536 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:46,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77939 states. [2022-01-28 13:15:47,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77939 to 49973. [2022-01-28 13:15:48,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49973 states, 49972 states have (on average 4.551188665652766) internal successors, (227432), 49972 states have internal predecessors, (227432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49973 states to 49973 states and 227432 transitions. [2022-01-28 13:15:48,317 INFO L78 Accepts]: Start accepts. Automaton has 49973 states and 227432 transitions. Word has length 86 [2022-01-28 13:15:48,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:48,317 INFO L470 AbstractCegarLoop]: Abstraction has 49973 states and 227432 transitions. [2022-01-28 13:15:48,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:48,317 INFO L276 IsEmpty]: Start isEmpty. Operand 49973 states and 227432 transitions. [2022-01-28 13:15:48,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:48,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:48,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:48,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-28 13:15:48,469 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:48,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:48,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1992109229, now seen corresponding path program 9 times [2022-01-28 13:15:48,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:48,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722648488] [2022-01-28 13:15:48,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:48,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:48,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722648488] [2022-01-28 13:15:48,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722648488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:48,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:48,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:15:48,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438739923] [2022-01-28 13:15:48,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:48,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:15:48,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:48,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:15:48,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:48,509 INFO L87 Difference]: Start difference. First operand 49973 states and 227432 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:49,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:49,627 INFO L93 Difference]: Finished difference Result 75881 states and 345948 transitions. [2022-01-28 13:15:49,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:15:49,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:49,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:50,352 INFO L225 Difference]: With dead ends: 75881 [2022-01-28 13:15:50,352 INFO L226 Difference]: Without dead ends: 75881 [2022-01-28 13:15:50,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:50,357 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 159 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:50,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 579 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:50,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75881 states. [2022-01-28 13:15:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75881 to 49403. [2022-01-28 13:15:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49403 states, 49402 states have (on average 4.55066596494069) internal successors, (224812), 49402 states have internal predecessors, (224812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:52,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49403 states to 49403 states and 224812 transitions. [2022-01-28 13:15:52,675 INFO L78 Accepts]: Start accepts. Automaton has 49403 states and 224812 transitions. Word has length 86 [2022-01-28 13:15:52,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:52,675 INFO L470 AbstractCegarLoop]: Abstraction has 49403 states and 224812 transitions. [2022-01-28 13:15:52,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:52,676 INFO L276 IsEmpty]: Start isEmpty. Operand 49403 states and 224812 transitions. [2022-01-28 13:15:53,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-28 13:15:53,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:53,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:53,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-28 13:15:53,131 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:53,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:53,132 INFO L85 PathProgramCache]: Analyzing trace with hash -203147259, now seen corresponding path program 10 times [2022-01-28 13:15:53,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:53,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100293554] [2022-01-28 13:15:53,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:53,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:53,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:53,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:53,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100293554] [2022-01-28 13:15:53,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100293554] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:15:53,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:15:53,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:15:53,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124054897] [2022-01-28 13:15:53,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:15:53,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:15:53,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:53,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:15:53,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:15:53,238 INFO L87 Difference]: Start difference. First operand 49403 states and 224812 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:54,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:54,189 INFO L93 Difference]: Finished difference Result 74441 states and 339204 transitions. [2022-01-28 13:15:54,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 13:15:54,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-28 13:15:54,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:15:54,775 INFO L225 Difference]: With dead ends: 74441 [2022-01-28 13:15:54,775 INFO L226 Difference]: Without dead ends: 74441 [2022-01-28 13:15:54,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-28 13:15:54,776 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 259 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:15:54,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 438 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:15:54,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74441 states. [2022-01-28 13:15:56,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74441 to 45899. [2022-01-28 13:15:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45899 states, 45898 states have (on average 4.54259444855985) internal successors, (208496), 45898 states have internal predecessors, (208496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:56,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45899 states to 45899 states and 208496 transitions. [2022-01-28 13:15:56,783 INFO L78 Accepts]: Start accepts. Automaton has 45899 states and 208496 transitions. Word has length 86 [2022-01-28 13:15:56,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:15:56,783 INFO L470 AbstractCegarLoop]: Abstraction has 45899 states and 208496 transitions. [2022-01-28 13:15:56,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:56,783 INFO L276 IsEmpty]: Start isEmpty. Operand 45899 states and 208496 transitions. [2022-01-28 13:15:57,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 13:15:57,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:15:57,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:15:57,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-28 13:15:57,244 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:15:57,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:15:57,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1593679681, now seen corresponding path program 1 times [2022-01-28 13:15:57,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:15:57,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638804646] [2022-01-28 13:15:57,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:57,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:15:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:57,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:15:57,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638804646] [2022-01-28 13:15:57,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638804646] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:15:57,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628836478] [2022-01-28 13:15:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:15:57,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:15:57,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:15:57,309 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) [2022-01-28 13:15:57,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-28 13:15:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:15:57,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-28 13:15:57,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:15:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:57,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:15:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:15:57,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628836478] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:15:57,796 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:15:57,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-01-28 13:15:57,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092844687] [2022-01-28 13:15:57,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:15:57,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:15:57,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:15:57,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:15:57,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:15:57,797 INFO L87 Difference]: Start difference. First operand 45899 states and 208496 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:15:59,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:15:59,138 INFO L93 Difference]: Finished difference Result 79094 states and 360312 transitions. [2022-01-28 13:15:59,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:15:59,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 91 [2022-01-28 13:15:59,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:00,012 INFO L225 Difference]: With dead ends: 79094 [2022-01-28 13:16:00,013 INFO L226 Difference]: Without dead ends: 79094 [2022-01-28 13:16:00,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:16:00,013 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 421 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:00,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1257 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:16:00,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79094 states. [2022-01-28 13:16:01,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79094 to 44714. [2022-01-28 13:16:02,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44714 states, 44713 states have (on average 4.541162525440028) internal successors, (203049), 44713 states have internal predecessors, (203049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:02,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44714 states to 44714 states and 203049 transitions. [2022-01-28 13:16:02,246 INFO L78 Accepts]: Start accepts. Automaton has 44714 states and 203049 transitions. Word has length 91 [2022-01-28 13:16:02,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:02,246 INFO L470 AbstractCegarLoop]: Abstraction has 44714 states and 203049 transitions. [2022-01-28 13:16:02,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:02,246 INFO L276 IsEmpty]: Start isEmpty. Operand 44714 states and 203049 transitions. [2022-01-28 13:16:02,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 13:16:02,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:02,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:02,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-28 13:16:02,560 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,SelfDestructingSolverStorable19 [2022-01-28 13:16:02,560 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:02,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash -136039099, now seen corresponding path program 2 times [2022-01-28 13:16:02,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:02,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860896194] [2022-01-28 13:16:02,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:02,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:02,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:02,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:02,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860896194] [2022-01-28 13:16:02,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860896194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:02,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:02,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:16:02,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132140291] [2022-01-28 13:16:02,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:02,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:16:02,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:02,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:16:02,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:16:02,669 INFO L87 Difference]: Start difference. First operand 44714 states and 203049 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:03,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:03,908 INFO L93 Difference]: Finished difference Result 79805 states and 362798 transitions. [2022-01-28 13:16:03,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 13:16:03,909 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-28 13:16:03,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:04,483 INFO L225 Difference]: With dead ends: 79805 [2022-01-28 13:16:04,484 INFO L226 Difference]: Without dead ends: 79805 [2022-01-28 13:16:04,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-28 13:16:04,484 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 207 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:04,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 681 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:16:04,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79805 states. [2022-01-28 13:16:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79805 to 44522. [2022-01-28 13:16:06,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44522 states, 44521 states have (on average 4.5408458929493944) internal successors, (202163), 44521 states have internal predecessors, (202163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:06,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44522 states to 44522 states and 202163 transitions. [2022-01-28 13:16:06,713 INFO L78 Accepts]: Start accepts. Automaton has 44522 states and 202163 transitions. Word has length 91 [2022-01-28 13:16:06,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:06,713 INFO L470 AbstractCegarLoop]: Abstraction has 44522 states and 202163 transitions. [2022-01-28 13:16:06,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:06,713 INFO L276 IsEmpty]: Start isEmpty. Operand 44522 states and 202163 transitions. [2022-01-28 13:16:07,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 13:16:07,191 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:07,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:07,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-28 13:16:07,192 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:07,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:07,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1630178977, now seen corresponding path program 3 times [2022-01-28 13:16:07,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:07,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273113806] [2022-01-28 13:16:07,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:07,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:16:07,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:07,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273113806] [2022-01-28 13:16:07,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273113806] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:16:07,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537485188] [2022-01-28 13:16:07,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-28 13:16:07,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:16:07,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:16:07,299 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) [2022-01-28 13:16:07,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-28 13:16:07,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-28 13:16:07,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:16:07,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-28 13:16:07,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:16:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:16:07,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:16:07,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:16:07,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537485188] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:16:07,694 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:16:07,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-01-28 13:16:07,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782495578] [2022-01-28 13:16:07,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:16:07,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:16:07,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:07,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:16:07,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:16:07,696 INFO L87 Difference]: Start difference. First operand 44522 states and 202163 transitions. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:08,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:08,993 INFO L93 Difference]: Finished difference Result 111947 states and 499493 transitions. [2022-01-28 13:16:08,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-28 13:16:08,994 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 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 91 [2022-01-28 13:16:08,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:09,966 INFO L225 Difference]: With dead ends: 111947 [2022-01-28 13:16:09,966 INFO L226 Difference]: Without dead ends: 111947 [2022-01-28 13:16:09,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-01-28 13:16:09,968 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 525 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:09,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 1414 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:16:10,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111947 states. [2022-01-28 13:16:12,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111947 to 44906. [2022-01-28 13:16:12,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44906 states, 44905 states have (on average 4.55009464424897) internal successors, (204322), 44905 states have internal predecessors, (204322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:12,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44906 states to 44906 states and 204322 transitions. [2022-01-28 13:16:12,869 INFO L78 Accepts]: Start accepts. Automaton has 44906 states and 204322 transitions. Word has length 91 [2022-01-28 13:16:12,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:12,869 INFO L470 AbstractCegarLoop]: Abstraction has 44906 states and 204322 transitions. [2022-01-28 13:16:12,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:12,870 INFO L276 IsEmpty]: Start isEmpty. Operand 44906 states and 204322 transitions. [2022-01-28 13:16:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 13:16:12,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:12,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:13,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-28 13:16:13,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:16:13,207 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:13,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:13,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2036896451, now seen corresponding path program 4 times [2022-01-28 13:16:13,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:13,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604000104] [2022-01-28 13:16:13,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:13,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:13,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:13,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604000104] [2022-01-28 13:16:13,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604000104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:13,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:13,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:16:13,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194451209] [2022-01-28 13:16:13,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:13,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:16:13,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:13,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:16:13,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:16:13,262 INFO L87 Difference]: Start difference. First operand 44906 states and 204322 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:14,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:14,328 INFO L93 Difference]: Finished difference Result 96260 states and 432304 transitions. [2022-01-28 13:16:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:16:14,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-28 13:16:14,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:15,226 INFO L225 Difference]: With dead ends: 96260 [2022-01-28 13:16:15,227 INFO L226 Difference]: Without dead ends: 96260 [2022-01-28 13:16:15,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:16:15,228 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 217 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:15,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 480 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:16:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96260 states. [2022-01-28 13:16:17,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96260 to 43853. [2022-01-28 13:16:17,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43853 states, 43852 states have (on average 4.523693332117121) internal successors, (198373), 43852 states have internal predecessors, (198373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:17,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43853 states to 43853 states and 198373 transitions. [2022-01-28 13:16:17,556 INFO L78 Accepts]: Start accepts. Automaton has 43853 states and 198373 transitions. Word has length 91 [2022-01-28 13:16:17,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:17,556 INFO L470 AbstractCegarLoop]: Abstraction has 43853 states and 198373 transitions. [2022-01-28 13:16:17,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:17,557 INFO L276 IsEmpty]: Start isEmpty. Operand 43853 states and 198373 transitions. [2022-01-28 13:16:17,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 13:16:17,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:17,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:17,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-28 13:16:17,667 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:17,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:17,667 INFO L85 PathProgramCache]: Analyzing trace with hash -6129173, now seen corresponding path program 5 times [2022-01-28 13:16:17,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:17,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538058484] [2022-01-28 13:16:17,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:17,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:17,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:17,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538058484] [2022-01-28 13:16:17,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538058484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:17,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:17,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:16:17,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258262018] [2022-01-28 13:16:17,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:17,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:16:17,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:17,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:16:17,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:16:17,698 INFO L87 Difference]: Start difference. First operand 43853 states and 198373 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:18,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:18,480 INFO L93 Difference]: Finished difference Result 59753 states and 269123 transitions. [2022-01-28 13:16:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 13:16:18,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-28 13:16:18,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:18,733 INFO L225 Difference]: With dead ends: 59753 [2022-01-28 13:16:18,733 INFO L226 Difference]: Without dead ends: 58601 [2022-01-28 13:16:18,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:16:18,734 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 107 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:18,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 423 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:16:19,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58601 states. [2022-01-28 13:16:20,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58601 to 43823. [2022-01-28 13:16:20,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43823 states, 43822 states have (on average 4.523047784217972) internal successors, (198209), 43822 states have internal predecessors, (198209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:20,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43823 states to 43823 states and 198209 transitions. [2022-01-28 13:16:20,801 INFO L78 Accepts]: Start accepts. Automaton has 43823 states and 198209 transitions. Word has length 91 [2022-01-28 13:16:20,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:20,802 INFO L470 AbstractCegarLoop]: Abstraction has 43823 states and 198209 transitions. [2022-01-28 13:16:20,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:20,802 INFO L276 IsEmpty]: Start isEmpty. Operand 43823 states and 198209 transitions. [2022-01-28 13:16:20,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 13:16:20,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:20,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:20,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-28 13:16:20,921 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:20,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:20,921 INFO L85 PathProgramCache]: Analyzing trace with hash -552359655, now seen corresponding path program 6 times [2022-01-28 13:16:20,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:20,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144337373] [2022-01-28 13:16:20,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:20,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:20,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:20,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:20,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144337373] [2022-01-28 13:16:20,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144337373] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:16:20,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473923849] [2022-01-28 13:16:20,981 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-28 13:16:20,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:16:20,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:16:20,982 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) [2022-01-28 13:16:20,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-28 13:16:21,060 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-01-28 13:16:21,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:16:21,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-28 13:16:21,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:16:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:21,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:16:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:21,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473923849] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:16:21,353 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:16:21,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-01-28 13:16:21,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674386391] [2022-01-28 13:16:21,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:16:21,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-28 13:16:21,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:21,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-28 13:16:21,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-28 13:16:21,354 INFO L87 Difference]: Start difference. First operand 43823 states and 198209 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:22,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:22,388 INFO L93 Difference]: Finished difference Result 86387 states and 384288 transitions. [2022-01-28 13:16:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 13:16:22,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 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 91 [2022-01-28 13:16:22,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:23,214 INFO L225 Difference]: With dead ends: 86387 [2022-01-28 13:16:23,214 INFO L226 Difference]: Without dead ends: 86387 [2022-01-28 13:16:23,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-01-28 13:16:23,215 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 464 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:23,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 1043 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:16:23,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86387 states. [2022-01-28 13:16:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86387 to 43430. [2022-01-28 13:16:25,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43430 states, 43429 states have (on average 4.51343572267379) internal successors, (196014), 43429 states have internal predecessors, (196014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43430 states to 43430 states and 196014 transitions. [2022-01-28 13:16:25,326 INFO L78 Accepts]: Start accepts. Automaton has 43430 states and 196014 transitions. Word has length 91 [2022-01-28 13:16:25,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:25,326 INFO L470 AbstractCegarLoop]: Abstraction has 43430 states and 196014 transitions. [2022-01-28 13:16:25,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:25,327 INFO L276 IsEmpty]: Start isEmpty. Operand 43430 states and 196014 transitions. [2022-01-28 13:16:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 13:16:25,447 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:25,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:25,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-28 13:16:25,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:16:25,666 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:25,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:25,667 INFO L85 PathProgramCache]: Analyzing trace with hash -993622783, now seen corresponding path program 7 times [2022-01-28 13:16:25,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:25,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786737467] [2022-01-28 13:16:25,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:25,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:25,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:25,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786737467] [2022-01-28 13:16:25,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786737467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:25,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:25,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:16:25,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042462655] [2022-01-28 13:16:25,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:25,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:16:25,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:25,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:16:25,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:16:25,718 INFO L87 Difference]: Start difference. First operand 43430 states and 196014 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:26,564 INFO L93 Difference]: Finished difference Result 74096 states and 329713 transitions. [2022-01-28 13:16:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 13:16:26,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-28 13:16:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:27,159 INFO L225 Difference]: With dead ends: 74096 [2022-01-28 13:16:27,160 INFO L226 Difference]: Without dead ends: 72944 [2022-01-28 13:16:27,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:16:27,177 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 133 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:27,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 507 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:16:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72944 states. [2022-01-28 13:16:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72944 to 43400. [2022-01-28 13:16:28,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43400 states, 43399 states have (on average 4.512776792091984) internal successors, (195850), 43399 states have internal predecessors, (195850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:29,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43400 states to 43400 states and 195850 transitions. [2022-01-28 13:16:29,202 INFO L78 Accepts]: Start accepts. Automaton has 43400 states and 195850 transitions. Word has length 91 [2022-01-28 13:16:29,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:29,203 INFO L470 AbstractCegarLoop]: Abstraction has 43400 states and 195850 transitions. [2022-01-28 13:16:29,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:29,203 INFO L276 IsEmpty]: Start isEmpty. Operand 43400 states and 195850 transitions. [2022-01-28 13:16:29,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-28 13:16:29,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:29,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:29,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-28 13:16:29,318 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:29,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:29,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1938111767, now seen corresponding path program 8 times [2022-01-28 13:16:29,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:29,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027087023] [2022-01-28 13:16:29,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:29,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:29,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:29,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027087023] [2022-01-28 13:16:29,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027087023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:29,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:29,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:16:29,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337377312] [2022-01-28 13:16:29,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:29,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:16:29,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:29,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:16:29,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:16:29,348 INFO L87 Difference]: Start difference. First operand 43400 states and 195850 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:30,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:30,352 INFO L93 Difference]: Finished difference Result 54326 states and 244720 transitions. [2022-01-28 13:16:30,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:16:30,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-28 13:16:30,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:30,679 INFO L225 Difference]: With dead ends: 54326 [2022-01-28 13:16:30,679 INFO L226 Difference]: Without dead ends: 52022 [2022-01-28 13:16:30,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-28 13:16:30,679 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 114 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:30,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 474 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:16:30,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52022 states. [2022-01-28 13:16:32,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52022 to 40958. [2022-01-28 13:16:32,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40958 states, 40957 states have (on average 4.525575603681911) internal successors, (185354), 40957 states have internal predecessors, (185354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:32,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40958 states to 40958 states and 185354 transitions. [2022-01-28 13:16:32,584 INFO L78 Accepts]: Start accepts. Automaton has 40958 states and 185354 transitions. Word has length 91 [2022-01-28 13:16:32,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:32,584 INFO L470 AbstractCegarLoop]: Abstraction has 40958 states and 185354 transitions. [2022-01-28 13:16:32,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:32,585 INFO L276 IsEmpty]: Start isEmpty. Operand 40958 states and 185354 transitions. [2022-01-28 13:16:32,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-28 13:16:32,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:32,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:32,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-28 13:16:32,693 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:32,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:32,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1947938087, now seen corresponding path program 1 times [2022-01-28 13:16:32,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:32,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062863267] [2022-01-28 13:16:32,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:32,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:32,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:32,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:32,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062863267] [2022-01-28 13:16:32,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062863267] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:16:32,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456748598] [2022-01-28 13:16:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:32,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:16:32,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:16:32,744 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) [2022-01-28 13:16:32,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-28 13:16:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:32,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-28 13:16:32,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:16:33,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:33,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:16:33,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:33,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456748598] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:16:33,185 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:16:33,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-01-28 13:16:33,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728883561] [2022-01-28 13:16:33,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:16:33,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-28 13:16:33,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:33,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-28 13:16:33,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-28 13:16:33,186 INFO L87 Difference]: Start difference. First operand 40958 states and 185354 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:34,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:34,233 INFO L93 Difference]: Finished difference Result 67278 states and 307900 transitions. [2022-01-28 13:16:34,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:16:34,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 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 96 [2022-01-28 13:16:34,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:34,582 INFO L225 Difference]: With dead ends: 67278 [2022-01-28 13:16:34,582 INFO L226 Difference]: Without dead ends: 67278 [2022-01-28 13:16:34,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:16:34,582 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 349 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:34,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 1024 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:16:34,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67278 states. [2022-01-28 13:16:36,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67278 to 44623. [2022-01-28 13:16:36,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44623 states, 44622 states have (on average 4.536618708260499) internal successors, (202433), 44622 states have internal predecessors, (202433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:36,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44623 states to 44623 states and 202433 transitions. [2022-01-28 13:16:36,833 INFO L78 Accepts]: Start accepts. Automaton has 44623 states and 202433 transitions. Word has length 96 [2022-01-28 13:16:36,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:36,833 INFO L470 AbstractCegarLoop]: Abstraction has 44623 states and 202433 transitions. [2022-01-28 13:16:36,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:36,834 INFO L276 IsEmpty]: Start isEmpty. Operand 44623 states and 202433 transitions. [2022-01-28 13:16:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-28 13:16:36,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:36,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:36,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-01-28 13:16:37,170 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,SelfDestructingSolverStorable27 [2022-01-28 13:16:37,170 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:37,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:37,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1878312195, now seen corresponding path program 2 times [2022-01-28 13:16:37,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:37,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762448274] [2022-01-28 13:16:37,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:37,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:37,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:16:37,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:37,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762448274] [2022-01-28 13:16:37,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762448274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:37,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:37,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:16:37,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252737950] [2022-01-28 13:16:37,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:37,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:16:37,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:37,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:16:37,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:16:37,211 INFO L87 Difference]: Start difference. First operand 44623 states and 202433 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:38,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:38,191 INFO L93 Difference]: Finished difference Result 78615 states and 359418 transitions. [2022-01-28 13:16:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 13:16:38,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-28 13:16:38,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:38,631 INFO L225 Difference]: With dead ends: 78615 [2022-01-28 13:16:38,631 INFO L226 Difference]: Without dead ends: 78615 [2022-01-28 13:16:38,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-28 13:16:38,632 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 227 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:38,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 604 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:16:39,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78615 states. [2022-01-28 13:16:40,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78615 to 44839. [2022-01-28 13:16:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44839 states, 44838 states have (on average 4.536040858200633) internal successors, (203387), 44838 states have internal predecessors, (203387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:41,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44839 states to 44839 states and 203387 transitions. [2022-01-28 13:16:41,005 INFO L78 Accepts]: Start accepts. Automaton has 44839 states and 203387 transitions. Word has length 96 [2022-01-28 13:16:41,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:41,005 INFO L470 AbstractCegarLoop]: Abstraction has 44839 states and 203387 transitions. [2022-01-28 13:16:41,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:41,006 INFO L276 IsEmpty]: Start isEmpty. Operand 44839 states and 203387 transitions. [2022-01-28 13:16:41,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-28 13:16:41,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:41,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:41,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-28 13:16:41,133 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:41,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:41,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1276245633, now seen corresponding path program 3 times [2022-01-28 13:16:41,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:41,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499143995] [2022-01-28 13:16:41,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:41,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:16:41,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:41,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499143995] [2022-01-28 13:16:41,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499143995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:41,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:41,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:16:41,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485028059] [2022-01-28 13:16:41,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:41,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:16:41,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:41,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:16:41,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:16:41,213 INFO L87 Difference]: Start difference. First operand 44839 states and 203387 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:41,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:41,964 INFO L93 Difference]: Finished difference Result 62259 states and 283965 transitions. [2022-01-28 13:16:41,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 13:16:41,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-28 13:16:41,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:42,294 INFO L225 Difference]: With dead ends: 62259 [2022-01-28 13:16:42,299 INFO L226 Difference]: Without dead ends: 61899 [2022-01-28 13:16:42,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:16:42,299 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 88 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:42,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 464 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:16:42,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61899 states. [2022-01-28 13:16:43,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61899 to 44971. [2022-01-28 13:16:44,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44971 states, 44970 states have (on average 4.5356904603068715) internal successors, (203970), 44970 states have internal predecessors, (203970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44971 states to 44971 states and 203970 transitions. [2022-01-28 13:16:44,527 INFO L78 Accepts]: Start accepts. Automaton has 44971 states and 203970 transitions. Word has length 96 [2022-01-28 13:16:44,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:44,527 INFO L470 AbstractCegarLoop]: Abstraction has 44971 states and 203970 transitions. [2022-01-28 13:16:44,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:44,527 INFO L276 IsEmpty]: Start isEmpty. Operand 44971 states and 203970 transitions. [2022-01-28 13:16:44,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-28 13:16:44,648 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:44,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:44,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-28 13:16:44,648 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:44,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:44,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1252227581, now seen corresponding path program 4 times [2022-01-28 13:16:44,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:44,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146444565] [2022-01-28 13:16:44,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:44,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:16:44,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:44,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146444565] [2022-01-28 13:16:44,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146444565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:44,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:44,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:16:44,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441382272] [2022-01-28 13:16:44,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:44,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:16:44,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:44,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:16:44,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:16:44,715 INFO L87 Difference]: Start difference. First operand 44971 states and 203970 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:45,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:45,581 INFO L93 Difference]: Finished difference Result 59887 states and 273238 transitions. [2022-01-28 13:16:45,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 13:16:45,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-28 13:16:45,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:46,017 INFO L225 Difference]: With dead ends: 59887 [2022-01-28 13:16:46,017 INFO L226 Difference]: Without dead ends: 59887 [2022-01-28 13:16:46,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:16:46,018 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 86 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:46,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 362 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:16:46,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59887 states. [2022-01-28 13:16:47,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59887 to 45903. [2022-01-28 13:16:47,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45903 states, 45902 states have (on average 4.539083264345781) internal successors, (208353), 45902 states have internal predecessors, (208353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:48,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45903 states to 45903 states and 208353 transitions. [2022-01-28 13:16:48,136 INFO L78 Accepts]: Start accepts. Automaton has 45903 states and 208353 transitions. Word has length 96 [2022-01-28 13:16:48,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:48,136 INFO L470 AbstractCegarLoop]: Abstraction has 45903 states and 208353 transitions. [2022-01-28 13:16:48,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand 45903 states and 208353 transitions. [2022-01-28 13:16:48,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-28 13:16:48,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:48,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:48,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-28 13:16:48,270 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:48,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:48,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1806682297, now seen corresponding path program 5 times [2022-01-28 13:16:48,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:48,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038249805] [2022-01-28 13:16:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:48,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:16:48,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:48,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038249805] [2022-01-28 13:16:48,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038249805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:48,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:48,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:16:48,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774243956] [2022-01-28 13:16:48,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:48,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:16:48,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:48,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:16:48,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:16:48,381 INFO L87 Difference]: Start difference. First operand 45903 states and 208353 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:49,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:49,196 INFO L93 Difference]: Finished difference Result 76846 states and 352420 transitions. [2022-01-28 13:16:49,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:16:49,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-28 13:16:49,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:49,903 INFO L225 Difference]: With dead ends: 76846 [2022-01-28 13:16:49,904 INFO L226 Difference]: Without dead ends: 76846 [2022-01-28 13:16:49,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:16:49,904 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 125 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:49,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 475 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:16:50,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76846 states. [2022-01-28 13:16:51,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76846 to 44863. [2022-01-28 13:16:51,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44863 states, 44862 states have (on average 4.535976996121439) internal successors, (203493), 44862 states have internal predecessors, (203493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:51,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44863 states to 44863 states and 203493 transitions. [2022-01-28 13:16:51,976 INFO L78 Accepts]: Start accepts. Automaton has 44863 states and 203493 transitions. Word has length 96 [2022-01-28 13:16:51,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:51,976 INFO L470 AbstractCegarLoop]: Abstraction has 44863 states and 203493 transitions. [2022-01-28 13:16:51,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:51,976 INFO L276 IsEmpty]: Start isEmpty. Operand 44863 states and 203493 transitions. [2022-01-28 13:16:52,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-28 13:16:52,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:52,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:52,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-28 13:16:52,081 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:52,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:52,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1143011957, now seen corresponding path program 6 times [2022-01-28 13:16:52,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:52,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524843488] [2022-01-28 13:16:52,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:52,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:52,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:16:52,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:52,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524843488] [2022-01-28 13:16:52,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524843488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:52,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:52,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:16:52,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900352881] [2022-01-28 13:16:52,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:52,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:16:52,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:52,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:16:52,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:16:52,111 INFO L87 Difference]: Start difference. First operand 44863 states and 203493 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:52,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:52,885 INFO L93 Difference]: Finished difference Result 71979 states and 328988 transitions. [2022-01-28 13:16:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:16:52,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-28 13:16:52,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:53,469 INFO L225 Difference]: With dead ends: 71979 [2022-01-28 13:16:53,469 INFO L226 Difference]: Without dead ends: 71259 [2022-01-28 13:16:53,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-28 13:16:53,470 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 130 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:53,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 381 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:16:53,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71259 states. [2022-01-28 13:16:55,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71259 to 44887. [2022-01-28 13:16:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44887 states, 44886 states have (on average 4.535645858396827) internal successors, (203587), 44886 states have internal predecessors, (203587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44887 states to 44887 states and 203587 transitions. [2022-01-28 13:16:55,507 INFO L78 Accepts]: Start accepts. Automaton has 44887 states and 203587 transitions. Word has length 96 [2022-01-28 13:16:55,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:55,509 INFO L470 AbstractCegarLoop]: Abstraction has 44887 states and 203587 transitions. [2022-01-28 13:16:55,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:55,509 INFO L276 IsEmpty]: Start isEmpty. Operand 44887 states and 203587 transitions. [2022-01-28 13:16:55,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-28 13:16:55,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:16:55,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:16:55,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-28 13:16:55,631 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:16:55,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:16:55,632 INFO L85 PathProgramCache]: Analyzing trace with hash 67109195, now seen corresponding path program 7 times [2022-01-28 13:16:55,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:16:55,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7209369] [2022-01-28 13:16:55,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:16:55,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:16:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:16:55,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:16:55,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:16:55,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7209369] [2022-01-28 13:16:55,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7209369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:16:55,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:16:55,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:16:55,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322589710] [2022-01-28 13:16:55,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:16:55,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:16:55,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:16:55,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:16:55,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:16:55,744 INFO L87 Difference]: Start difference. First operand 44887 states and 203587 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:56,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:16:56,971 INFO L93 Difference]: Finished difference Result 78363 states and 359300 transitions. [2022-01-28 13:16:56,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 13:16:56,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-28 13:16:56,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:16:57,518 INFO L225 Difference]: With dead ends: 78363 [2022-01-28 13:16:57,519 INFO L226 Difference]: Without dead ends: 78003 [2022-01-28 13:16:57,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:16:57,520 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 111 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:16:57,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 393 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:16:57,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78003 states. [2022-01-28 13:16:59,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78003 to 44911. [2022-01-28 13:16:59,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44911 states, 44910 states have (on average 4.5353150745936315) internal successors, (203681), 44910 states have internal predecessors, (203681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:59,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44911 states to 44911 states and 203681 transitions. [2022-01-28 13:16:59,759 INFO L78 Accepts]: Start accepts. Automaton has 44911 states and 203681 transitions. Word has length 96 [2022-01-28 13:16:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:16:59,759 INFO L470 AbstractCegarLoop]: Abstraction has 44911 states and 203681 transitions. [2022-01-28 13:16:59,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:16:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 44911 states and 203681 transitions. [2022-01-28 13:17:00,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-28 13:17:00,289 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:17:00,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:17:00,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-28 13:17:00,289 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:17:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:17:00,291 INFO L85 PathProgramCache]: Analyzing trace with hash 43091143, now seen corresponding path program 8 times [2022-01-28 13:17:00,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:17:00,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225265789] [2022-01-28 13:17:00,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:17:00,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:17:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:17:00,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:17:00,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:17:00,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225265789] [2022-01-28 13:17:00,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225265789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:17:00,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:17:00,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 13:17:00,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326695565] [2022-01-28 13:17:00,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:17:00,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 13:17:00,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:17:00,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 13:17:00,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:17:00,374 INFO L87 Difference]: Start difference. First operand 44911 states and 203681 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:17:01,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:17:01,445 INFO L93 Difference]: Finished difference Result 75567 states and 346451 transitions. [2022-01-28 13:17:01,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 13:17:01,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-28 13:17:01,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:17:02,076 INFO L225 Difference]: With dead ends: 75567 [2022-01-28 13:17:02,076 INFO L226 Difference]: Without dead ends: 75567 [2022-01-28 13:17:02,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-28 13:17:02,078 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 108 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:17:02,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 281 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:17:02,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75567 states. [2022-01-28 13:17:04,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75567 to 45735. [2022-01-28 13:17:04,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45735 states, 45734 states have (on average 4.538745790877684) internal successors, (207575), 45734 states have internal predecessors, (207575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:17:04,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45735 states to 45735 states and 207575 transitions. [2022-01-28 13:17:04,430 INFO L78 Accepts]: Start accepts. Automaton has 45735 states and 207575 transitions. Word has length 96 [2022-01-28 13:17:04,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:17:04,430 INFO L470 AbstractCegarLoop]: Abstraction has 45735 states and 207575 transitions. [2022-01-28 13:17:04,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:17:04,431 INFO L276 IsEmpty]: Start isEmpty. Operand 45735 states and 207575 transitions. [2022-01-28 13:17:04,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-28 13:17:04,935 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:17:04,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:17:04,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-28 13:17:04,935 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:17:04,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:17:04,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1279148561, now seen corresponding path program 9 times [2022-01-28 13:17:04,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:17:04,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038962382] [2022-01-28 13:17:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:17:04,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:17:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:17:05,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:17:05,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:17:05,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038962382] [2022-01-28 13:17:05,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038962382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 13:17:05,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 13:17:05,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-28 13:17:05,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730846204] [2022-01-28 13:17:05,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 13:17:05,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-28 13:17:05,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:17:05,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-28 13:17:05,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:17:05,005 INFO L87 Difference]: Start difference. First operand 45735 states and 207575 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:17:05,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:17:05,889 INFO L93 Difference]: Finished difference Result 67462 states and 308757 transitions. [2022-01-28 13:17:05,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 13:17:05,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-28 13:17:05,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:17:06,218 INFO L225 Difference]: With dead ends: 67462 [2022-01-28 13:17:06,218 INFO L226 Difference]: Without dead ends: 67462 [2022-01-28 13:17:06,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-28 13:17:06,218 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 139 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-28 13:17:06,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 343 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-28 13:17:06,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67462 states. [2022-01-28 13:17:08,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67462 to 44563. [2022-01-28 13:17:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44563 states, 44562 states have (on average 4.535972353125982) internal successors, (202132), 44562 states have internal predecessors, (202132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:17:08,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44563 states to 44563 states and 202132 transitions. [2022-01-28 13:17:08,623 INFO L78 Accepts]: Start accepts. Automaton has 44563 states and 202132 transitions. Word has length 96 [2022-01-28 13:17:08,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:17:08,623 INFO L470 AbstractCegarLoop]: Abstraction has 44563 states and 202132 transitions. [2022-01-28 13:17:08,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:17:08,623 INFO L276 IsEmpty]: Start isEmpty. Operand 44563 states and 202132 transitions. [2022-01-28 13:17:08,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-28 13:17:08,838 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:17:08,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:17:08,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-28 13:17:08,838 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:17:08,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:17:08,839 INFO L85 PathProgramCache]: Analyzing trace with hash 669224837, now seen corresponding path program 1 times [2022-01-28 13:17:08,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:17:08,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075090707] [2022-01-28 13:17:08,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:17:08,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:17:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:17:09,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:17:09,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:17:09,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075090707] [2022-01-28 13:17:09,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075090707] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:17:09,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240526682] [2022-01-28 13:17:09,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:17:09,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:17:09,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:17:09,764 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) [2022-01-28 13:17:09,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-28 13:17:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:17:09,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-28 13:17:09,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:17:11,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:17:11,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:17:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:17:12,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240526682] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:17:12,126 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:17:12,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 10 [2022-01-28 13:17:12,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428280516] [2022-01-28 13:17:12,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:17:12,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-28 13:17:12,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:17:12,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-28 13:17:12,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-28 13:17:12,129 INFO L87 Difference]: Start difference. First operand 44563 states and 202132 transitions. Second operand has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 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) [2022-01-28 13:17:15,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:17:15,097 INFO L93 Difference]: Finished difference Result 216024 states and 976955 transitions. [2022-01-28 13:17:15,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-28 13:17:15,097 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 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 101 [2022-01-28 13:17:15,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:17:17,173 INFO L225 Difference]: With dead ends: 216024 [2022-01-28 13:17:17,173 INFO L226 Difference]: Without dead ends: 208605 [2022-01-28 13:17:17,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 197 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:17:17,174 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 337 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-28 13:17:17,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 1464 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-28 13:17:17,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208605 states. [2022-01-28 13:17:25,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208605 to 182384. [2022-01-28 13:17:25,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182384 states, 182383 states have (on average 4.5979395009403285) internal successors, (838586), 182383 states have internal predecessors, (838586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:17:27,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182384 states to 182384 states and 838586 transitions. [2022-01-28 13:17:27,448 INFO L78 Accepts]: Start accepts. Automaton has 182384 states and 838586 transitions. Word has length 101 [2022-01-28 13:17:27,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:17:27,448 INFO L470 AbstractCegarLoop]: Abstraction has 182384 states and 838586 transitions. [2022-01-28 13:17:27,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 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) [2022-01-28 13:17:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 182384 states and 838586 transitions. [2022-01-28 13:17:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-28 13:17:28,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:17:28,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 13:17:28,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-28 13:17:28,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-01-28 13:17:28,754 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:17:28,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:17:28,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1185760927, now seen corresponding path program 2 times [2022-01-28 13:17:28,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:17:28,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036656257] [2022-01-28 13:17:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:17:28,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:17:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:17:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:17:28,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:17:28,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036656257] [2022-01-28 13:17:28,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036656257] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:17:28,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536084838] [2022-01-28 13:17:28,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-28 13:17:28,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:17:28,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:17:28,916 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) [2022-01-28 13:17:28,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-28 13:17:29,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-28 13:17:29,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:17:29,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-28 13:17:29,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:17:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 13:17:29,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:17:29,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:17:29,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536084838] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:17:29,850 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:17:29,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 12 [2022-01-28 13:17:29,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788257200] [2022-01-28 13:17:29,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:17:29,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-28 13:17:29,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:17:29,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-28 13:17:29,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-01-28 13:17:29,852 INFO L87 Difference]: Start difference. First operand 182384 states and 838586 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) [2022-01-28 13:17:37,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:17:37,580 INFO L93 Difference]: Finished difference Result 438427 states and 1998890 transitions. [2022-01-28 13:17:37,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-28 13:17:37,580 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 101 [2022-01-28 13:17:37,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:17:42,944 INFO L225 Difference]: With dead ends: 438427 [2022-01-28 13:17:42,944 INFO L226 Difference]: Without dead ends: 425167 [2022-01-28 13:17:42,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 195 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-01-28 13:17:42,945 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 533 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:17:42,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 1920 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:17:44,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425167 states. [2022-01-28 13:17:57,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425167 to 232114. [2022-01-28 13:17:58,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232114 states, 232113 states have (on average 4.6060410231223585) internal successors, (1069122), 232113 states have internal predecessors, (1069122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:18:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232114 states to 232114 states and 1069122 transitions. [2022-01-28 13:18:01,071 INFO L78 Accepts]: Start accepts. Automaton has 232114 states and 1069122 transitions. Word has length 101 [2022-01-28 13:18:01,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:18:01,087 INFO L470 AbstractCegarLoop]: Abstraction has 232114 states and 1069122 transitions. [2022-01-28 13:18:01,087 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) [2022-01-28 13:18:01,087 INFO L276 IsEmpty]: Start isEmpty. Operand 232114 states and 1069122 transitions. [2022-01-28 13:18:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-28 13:18:02,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:18:02,677 INFO L514 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] [2022-01-28 13:18:02,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-28 13:18:02,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:18:02,894 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:18:02,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:18:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash -241064789, now seen corresponding path program 3 times [2022-01-28 13:18:02,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:18:02,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487509990] [2022-01-28 13:18:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:18:02,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:18:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:18:03,008 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:18:03,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:18:03,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487509990] [2022-01-28 13:18:03,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487509990] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:18:03,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021563842] [2022-01-28 13:18:03,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-28 13:18:03,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:18:03,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:18:03,040 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) [2022-01-28 13:18:03,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-28 13:18:03,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-28 13:18:03,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:18:03,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-28 13:18:03,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:18:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:18:03,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:18:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-28 13:18:03,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021563842] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:18:03,723 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:18:03,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-01-28 13:18:03,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952912823] [2022-01-28 13:18:03,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:18:03,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-28 13:18:03,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:18:03,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-28 13:18:03,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:18:03,724 INFO L87 Difference]: Start difference. First operand 232114 states and 1069122 transitions. Second operand has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:18:11,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 13:18:11,266 INFO L93 Difference]: Finished difference Result 443406 states and 2039796 transitions. [2022-01-28 13:18:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-28 13:18:11,266 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 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 106 [2022-01-28 13:18:11,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 13:18:17,025 INFO L225 Difference]: With dead ends: 443406 [2022-01-28 13:18:17,025 INFO L226 Difference]: Without dead ends: 433839 [2022-01-28 13:18:17,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2022-01-28 13:18:17,026 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 818 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-28 13:18:17,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [818 Valid, 2698 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-28 13:18:18,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433839 states. [2022-01-28 13:18:32,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433839 to 232750. [2022-01-28 13:18:33,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232750 states, 232749 states have (on average 4.604238901133839) internal successors, (1071632), 232749 states have internal predecessors, (1071632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:18:36,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232750 states to 232750 states and 1071632 transitions. [2022-01-28 13:18:36,116 INFO L78 Accepts]: Start accepts. Automaton has 232750 states and 1071632 transitions. Word has length 106 [2022-01-28 13:18:36,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 13:18:36,116 INFO L470 AbstractCegarLoop]: Abstraction has 232750 states and 1071632 transitions. [2022-01-28 13:18:36,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 13:18:36,117 INFO L276 IsEmpty]: Start isEmpty. Operand 232750 states and 1071632 transitions. [2022-01-28 13:18:37,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-28 13:18:37,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 13:18:37,843 INFO L514 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] [2022-01-28 13:18:37,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-28 13:18:38,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-01-28 13:18:38,057 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-28 13:18:38,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 13:18:38,057 INFO L85 PathProgramCache]: Analyzing trace with hash -208197391, now seen corresponding path program 4 times [2022-01-28 13:18:38,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 13:18:38,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749985913] [2022-01-28 13:18:38,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 13:18:38,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 13:18:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 13:18:38,129 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:18:38,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 13:18:38,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749985913] [2022-01-28 13:18:38,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749985913] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 13:18:38,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118407807] [2022-01-28 13:18:38,129 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-28 13:18:38,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 13:18:38,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 13:18:38,130 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) [2022-01-28 13:18:38,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-28 13:18:38,254 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-28 13:18:38,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 13:18:38,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-28 13:18:38,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 13:18:38,514 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:18:38,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 13:18:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 13:18:38,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118407807] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 13:18:38,782 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 13:18:38,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-01-28 13:18:38,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831561034] [2022-01-28 13:18:38,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 13:18:38,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-28 13:18:38,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 13:18:38,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-28 13:18:38,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-28 13:18:38,784 INFO L87 Difference]: Start difference. First operand 232750 states and 1071632 transitions. Second operand has 16 states, 16 states have (on average 7.9375) internal successors, (127), 16 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)