/usr/bin/java -Xmx16000000000 -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/test-hard1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 03:10:07,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 03:10:07,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 03:10:07,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 03:10:07,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 03:10:07,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 03:10:07,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 03:10:07,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 03:10:07,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 03:10:07,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 03:10:07,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 03:10:07,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 03:10:07,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 03:10:07,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 03:10:07,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 03:10:07,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 03:10:07,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 03:10:07,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 03:10:07,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 03:10:07,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 03:10:07,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 03:10:07,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 03:10:07,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 03:10:07,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 03:10:07,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 03:10:07,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 03:10:07,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 03:10:07,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 03:10:07,133 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 [2022-01-18 03:10:07,148 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 03:10:07,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 03:10:07,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 03:10:07,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 03:10:07,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 03:10:07,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 03:10:07,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 03:10:07,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 03:10:07,150 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 03:10:07,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 03:10:07,150 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 03:10:07,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 03:10:07,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 03:10:07,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 03:10:07,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 03:10:07,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 03:10:07,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 03:10:07,151 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 03:10:07,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 03:10:07,151 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 03:10:07,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 03:10:07,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 03:10:07,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 03:10:07,152 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 03:10:07,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 03:10:07,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 03:10:07,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 03:10:07,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 03:10:07,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 03:10:07,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 03:10:07,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 03:10:07,153 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 03:10:07,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 03:10:07,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 03:10:07,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 03:10:07,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 03:10:07,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 03:10:07,390 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 03:10:07,391 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 03:10:07,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-01-18 03:10:07,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f197f43/0bd64b93916a4dba906191fe03bb45de/FLAG603b73d67 [2022-01-18 03:10:07,818 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 03:10:07,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-01-18 03:10:07,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f197f43/0bd64b93916a4dba906191fe03bb45de/FLAG603b73d67 [2022-01-18 03:10:08,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f197f43/0bd64b93916a4dba906191fe03bb45de [2022-01-18 03:10:08,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 03:10:08,217 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 03:10:08,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 03:10:08,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 03:10:08,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 03:10:08,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9f1ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08, skipping insertion in model container [2022-01-18 03:10:08,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 03:10:08,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 03:10:08,421 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/test-hard1.wvr.c[3373,3386] [2022-01-18 03:10:08,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 03:10:08,428 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 03:10:08,451 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/test-hard1.wvr.c[3373,3386] [2022-01-18 03:10:08,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 03:10:08,474 INFO L208 MainTranslator]: Completed translation [2022-01-18 03:10:08,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08 WrapperNode [2022-01-18 03:10:08,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 03:10:08,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 03:10:08,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 03:10:08,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 03:10:08,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,513 INFO L137 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2022-01-18 03:10:08,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 03:10:08,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 03:10:08,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 03:10:08,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 03:10:08,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 03:10:08,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 03:10:08,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 03:10:08,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 03:10:08,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (1/1) ... [2022-01-18 03:10:08,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 03:10:08,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:10:08,562 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) [2022-01-18 03:10:08,582 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 [2022-01-18 03:10:08,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 03:10:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 03:10:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 03:10:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 03:10:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 03:10:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 03:10:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 03:10:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 03:10:08,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 03:10:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 03:10:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 03:10:08,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 03:10:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 03:10:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 03:10:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 03:10:08,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 03:10:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 03:10:08,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 03:10:08,608 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 03:10:08,671 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 03:10:08,672 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 03:10:08,927 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 03:10:08,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 03:10:08,961 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 03:10:08,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:10:08 BoogieIcfgContainer [2022-01-18 03:10:08,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 03:10:08,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 03:10:08,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 03:10:08,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 03:10:08,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 03:10:08" (1/3) ... [2022-01-18 03:10:08,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1492ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 03:10:08, skipping insertion in model container [2022-01-18 03:10:08,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 03:10:08" (2/3) ... [2022-01-18 03:10:08,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1492ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 03:10:08, skipping insertion in model container [2022-01-18 03:10:08,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:10:08" (3/3) ... [2022-01-18 03:10:08,970 INFO L111 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2022-01-18 03:10:08,974 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 03:10:08,974 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 03:10:08,975 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 03:10:08,975 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 03:10:09,006 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,006 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,006 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,007 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,007 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,007 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,007 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,008 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,009 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,009 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,009 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,010 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,010 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,010 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,010 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,010 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,011 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,011 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,011 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,011 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,011 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,012 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,012 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,013 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,013 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,013 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,013 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,013 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,014 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,014 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,014 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,014 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,014 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,014 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,015 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,015 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,015 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,015 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,016 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,016 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,016 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,017 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,017 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,017 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,017 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,017 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,017 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,018 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,018 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,018 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,019 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,021 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,021 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,021 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,021 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,022 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,022 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,023 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,023 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,023 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,024 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:10:09,028 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 03:10:09,061 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 03:10:09,066 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 [2022-01-18 03:10:09,066 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 03:10:09,079 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 138 places, 135 transitions, 302 flow [2022-01-18 03:10:09,772 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:09,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 03:10:09,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:09,923 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] [2022-01-18 03:10:09,924 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)] === [2022-01-18 03:10:09,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:09,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2058988717, now seen corresponding path program 1 times [2022-01-18 03:10:09,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:09,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104962096] [2022-01-18 03:10:09,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:09,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:10,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:10,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:10,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104962096] [2022-01-18 03:10:10,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104962096] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:10,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:10,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 03:10:10,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984767977] [2022-01-18 03:10:10,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:10,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 03:10:10,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:10,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 03:10:10,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 03:10:10,333 INFO L87 Difference]: Start difference. First operand has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 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 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:10,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:10,705 INFO L93 Difference]: Finished difference Result 13249 states and 59470 transitions. [2022-01-18 03:10:10,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 03:10:10,708 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-01-18 03:10:10,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:10,862 INFO L225 Difference]: With dead ends: 13249 [2022-01-18 03:10:10,863 INFO L226 Difference]: Without dead ends: 13247 [2022-01-18 03:10:10,864 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 [2022-01-18 03:10:10,866 INFO L933 BasicCegarLoop]: 100 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, 100 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 [2022-01-18 03:10:10,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 03:10:10,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13247 states. [2022-01-18 03:10:11,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13247 to 13247. [2022-01-18 03:10:11,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13247 states, 13246 states have (on average 4.489506266042579) internal successors, (59468), 13246 states have internal predecessors, (59468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:11,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13247 states to 13247 states and 59468 transitions. [2022-01-18 03:10:11,685 INFO L78 Accepts]: Start accepts. Automaton has 13247 states and 59468 transitions. Word has length 98 [2022-01-18 03:10:11,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:11,686 INFO L470 AbstractCegarLoop]: Abstraction has 13247 states and 59468 transitions. [2022-01-18 03:10:11,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:11,686 INFO L276 IsEmpty]: Start isEmpty. Operand 13247 states and 59468 transitions. [2022-01-18 03:10:11,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-18 03:10:11,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:11,755 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] [2022-01-18 03:10:11,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 03:10:11,756 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)] === [2022-01-18 03:10:11,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:11,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1413398939, now seen corresponding path program 1 times [2022-01-18 03:10:11,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:11,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673469245] [2022-01-18 03:10:11,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:11,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:12,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:12,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:12,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673469245] [2022-01-18 03:10:12,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673469245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:12,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:12,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 03:10:12,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251224768] [2022-01-18 03:10:12,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:12,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 03:10:12,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:12,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 03:10:12,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 03:10:12,152 INFO L87 Difference]: Start difference. First operand 13247 states and 59468 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:12,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:12,549 INFO L93 Difference]: Finished difference Result 20737 states and 92881 transitions. [2022-01-18 03:10:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 03:10:12,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-01-18 03:10:12,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:12,657 INFO L225 Difference]: With dead ends: 20737 [2022-01-18 03:10:12,657 INFO L226 Difference]: Without dead ends: 20290 [2022-01-18 03:10:12,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 03:10:12,662 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 125 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:12,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 445 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:10:12,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20290 states. [2022-01-18 03:10:13,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20290 to 16679. [2022-01-18 03:10:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16679 states, 16678 states have (on average 4.47133948914738) internal successors, (74573), 16678 states have internal predecessors, (74573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:13,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16679 states to 16679 states and 74573 transitions. [2022-01-18 03:10:13,403 INFO L78 Accepts]: Start accepts. Automaton has 16679 states and 74573 transitions. Word has length 98 [2022-01-18 03:10:13,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:13,406 INFO L470 AbstractCegarLoop]: Abstraction has 16679 states and 74573 transitions. [2022-01-18 03:10:13,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:13,406 INFO L276 IsEmpty]: Start isEmpty. Operand 16679 states and 74573 transitions. [2022-01-18 03:10:13,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:13,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:13,467 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] [2022-01-18 03:10:13,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 03:10:13,467 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)] === [2022-01-18 03:10:13,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:13,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1520857668, now seen corresponding path program 1 times [2022-01-18 03:10:13,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:13,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120656427] [2022-01-18 03:10:13,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:13,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:13,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:13,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120656427] [2022-01-18 03:10:13,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120656427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:13,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:13,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 03:10:13,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808616496] [2022-01-18 03:10:13,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:13,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 03:10:13,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:13,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 03:10:13,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 03:10:13,772 INFO L87 Difference]: Start difference. First operand 16679 states and 74573 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:14,202 INFO L93 Difference]: Finished difference Result 26954 states and 120021 transitions. [2022-01-18 03:10:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 03:10:14,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 101 [2022-01-18 03:10:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:14,403 INFO L225 Difference]: With dead ends: 26954 [2022-01-18 03:10:14,404 INFO L226 Difference]: Without dead ends: 26498 [2022-01-18 03:10:14,404 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 [2022-01-18 03:10:14,405 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 153 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:14,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 419 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:10:14,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26498 states. [2022-01-18 03:10:15,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26498 to 19892. [2022-01-18 03:10:15,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19892 states, 19891 states have (on average 4.536322960132724) internal successors, (90232), 19891 states have internal predecessors, (90232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19892 states to 19892 states and 90232 transitions. [2022-01-18 03:10:15,447 INFO L78 Accepts]: Start accepts. Automaton has 19892 states and 90232 transitions. Word has length 101 [2022-01-18 03:10:15,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:15,448 INFO L470 AbstractCegarLoop]: Abstraction has 19892 states and 90232 transitions. [2022-01-18 03:10:15,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:15,448 INFO L276 IsEmpty]: Start isEmpty. Operand 19892 states and 90232 transitions. [2022-01-18 03:10:15,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:15,516 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:15,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 03:10:15,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 03:10:15,517 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)] === [2022-01-18 03:10:15,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:15,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1028401524, now seen corresponding path program 1 times [2022-01-18 03:10:15,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:15,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197291995] [2022-01-18 03:10:15,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:15,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:15,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:15,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197291995] [2022-01-18 03:10:15,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197291995] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:15,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:15,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 03:10:15,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17750671] [2022-01-18 03:10:15,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:15,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 03:10:15,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:15,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 03:10:15,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 03:10:15,627 INFO L87 Difference]: Start difference. First operand 19892 states and 90232 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:16,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:16,145 INFO L93 Difference]: Finished difference Result 36365 states and 161249 transitions. [2022-01-18 03:10:16,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 03:10:16,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 101 [2022-01-18 03:10:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:16,385 INFO L225 Difference]: With dead ends: 36365 [2022-01-18 03:10:16,385 INFO L226 Difference]: Without dead ends: 35807 [2022-01-18 03:10:16,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 03:10:16,387 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 170 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:16,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 542 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:10:16,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35807 states. [2022-01-18 03:10:17,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35807 to 25190. [2022-01-18 03:10:17,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25190 states, 25189 states have (on average 4.58307197586248) internal successors, (115443), 25189 states have internal predecessors, (115443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:17,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25190 states to 25190 states and 115443 transitions. [2022-01-18 03:10:17,442 INFO L78 Accepts]: Start accepts. Automaton has 25190 states and 115443 transitions. Word has length 101 [2022-01-18 03:10:17,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:17,442 INFO L470 AbstractCegarLoop]: Abstraction has 25190 states and 115443 transitions. [2022-01-18 03:10:17,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:17,443 INFO L276 IsEmpty]: Start isEmpty. Operand 25190 states and 115443 transitions. [2022-01-18 03:10:17,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:17,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:17,510 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] [2022-01-18 03:10:17,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 03:10:17,510 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)] === [2022-01-18 03:10:17,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:17,512 INFO L85 PathProgramCache]: Analyzing trace with hash 624817402, now seen corresponding path program 1 times [2022-01-18 03:10:17,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:17,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037291611] [2022-01-18 03:10:17,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:17,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:17,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:17,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:17,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037291611] [2022-01-18 03:10:17,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037291611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:17,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:17,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:10:17,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176194630] [2022-01-18 03:10:17,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:17,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:10:17,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:17,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:10:17,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:10:17,775 INFO L87 Difference]: Start difference. First operand 25190 states and 115443 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:10:18,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:18,577 INFO L93 Difference]: Finished difference Result 42778 states and 188978 transitions. [2022-01-18 03:10:18,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 03:10:18,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:10:18,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:18,753 INFO L225 Difference]: With dead ends: 42778 [2022-01-18 03:10:18,753 INFO L226 Difference]: Without dead ends: 42310 [2022-01-18 03:10:18,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=59, Unknown=0, NotChecked=0, Total=110 [2022-01-18 03:10:18,754 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 293 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:18,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 593 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:10:18,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42310 states. [2022-01-18 03:10:19,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42310 to 31453. [2022-01-18 03:10:19,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31453 states, 31452 states have (on average 4.557102886938828) internal successors, (143330), 31452 states have internal predecessors, (143330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:20,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31453 states to 31453 states and 143330 transitions. [2022-01-18 03:10:20,155 INFO L78 Accepts]: Start accepts. Automaton has 31453 states and 143330 transitions. Word has length 101 [2022-01-18 03:10:20,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:20,155 INFO L470 AbstractCegarLoop]: Abstraction has 31453 states and 143330 transitions. [2022-01-18 03:10:20,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:10:20,156 INFO L276 IsEmpty]: Start isEmpty. Operand 31453 states and 143330 transitions. [2022-01-18 03:10:20,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:20,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:20,242 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] [2022-01-18 03:10:20,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 03:10:20,242 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)] === [2022-01-18 03:10:20,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:20,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1755644018, now seen corresponding path program 2 times [2022-01-18 03:10:20,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:20,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774499470] [2022-01-18 03:10:20,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:20,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:20,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:20,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774499470] [2022-01-18 03:10:20,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774499470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:20,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:20,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 03:10:20,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117224704] [2022-01-18 03:10:20,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:20,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 03:10:20,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:20,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 03:10:20,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 03:10:20,421 INFO L87 Difference]: Start difference. First operand 31453 states and 143330 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:20,855 INFO L93 Difference]: Finished difference Result 53687 states and 241221 transitions. [2022-01-18 03:10:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 03:10:20,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 101 [2022-01-18 03:10:20,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:21,487 INFO L225 Difference]: With dead ends: 53687 [2022-01-18 03:10:21,487 INFO L226 Difference]: Without dead ends: 53216 [2022-01-18 03:10:21,487 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 [2022-01-18 03:10:21,488 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 128 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:21,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 443 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:10:21,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53216 states. [2022-01-18 03:10:22,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53216 to 34468. [2022-01-18 03:10:22,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34468 states, 34467 states have (on average 4.600893608379029) internal successors, (158579), 34467 states have internal predecessors, (158579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:22,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34468 states to 34468 states and 158579 transitions. [2022-01-18 03:10:22,929 INFO L78 Accepts]: Start accepts. Automaton has 34468 states and 158579 transitions. Word has length 101 [2022-01-18 03:10:22,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:22,930 INFO L470 AbstractCegarLoop]: Abstraction has 34468 states and 158579 transitions. [2022-01-18 03:10:22,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:22,930 INFO L276 IsEmpty]: Start isEmpty. Operand 34468 states and 158579 transitions. [2022-01-18 03:10:23,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:23,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:23,011 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] [2022-01-18 03:10:23,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 03:10:23,011 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)] === [2022-01-18 03:10:23,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:23,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1678848424, now seen corresponding path program 3 times [2022-01-18 03:10:23,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:23,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59703794] [2022-01-18 03:10:23,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:23,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:23,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:23,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:23,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59703794] [2022-01-18 03:10:23,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59703794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:23,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:23,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 03:10:23,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678598965] [2022-01-18 03:10:23,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:23,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 03:10:23,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:23,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 03:10:23,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 03:10:23,206 INFO L87 Difference]: Start difference. First operand 34468 states and 158579 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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) [2022-01-18 03:10:24,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:24,356 INFO L93 Difference]: Finished difference Result 54392 states and 244966 transitions. [2022-01-18 03:10:24,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 03:10:24,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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 101 [2022-01-18 03:10:24,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:24,598 INFO L225 Difference]: With dead ends: 54392 [2022-01-18 03:10:24,598 INFO L226 Difference]: Without dead ends: 53285 [2022-01-18 03:10:24,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 03:10:24,599 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 184 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:24,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 577 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:10:24,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53285 states. [2022-01-18 03:10:25,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53285 to 35635. [2022-01-18 03:10:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35635 states, 35634 states have (on average 4.595863501150586) internal successors, (163769), 35634 states have internal predecessors, (163769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:25,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35635 states to 35635 states and 163769 transitions. [2022-01-18 03:10:25,859 INFO L78 Accepts]: Start accepts. Automaton has 35635 states and 163769 transitions. Word has length 101 [2022-01-18 03:10:25,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:25,859 INFO L470 AbstractCegarLoop]: Abstraction has 35635 states and 163769 transitions. [2022-01-18 03:10:25,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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) [2022-01-18 03:10:25,860 INFO L276 IsEmpty]: Start isEmpty. Operand 35635 states and 163769 transitions. [2022-01-18 03:10:25,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:25,950 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:25,951 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] [2022-01-18 03:10:25,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 03:10:25,951 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)] === [2022-01-18 03:10:25,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:25,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2009241916, now seen corresponding path program 4 times [2022-01-18 03:10:25,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:25,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230222521] [2022-01-18 03:10:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:25,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:26,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:26,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:26,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230222521] [2022-01-18 03:10:26,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230222521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:26,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:26,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 03:10:26,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668045562] [2022-01-18 03:10:26,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:26,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 03:10:26,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:26,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 03:10:26,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 03:10:26,055 INFO L87 Difference]: Start difference. First operand 35635 states and 163769 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:27,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:27,173 INFO L93 Difference]: Finished difference Result 55719 states and 251286 transitions. [2022-01-18 03:10:27,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 03:10:27,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 101 [2022-01-18 03:10:27,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:27,458 INFO L225 Difference]: With dead ends: 55719 [2022-01-18 03:10:27,459 INFO L226 Difference]: Without dead ends: 55248 [2022-01-18 03:10:27,459 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 [2022-01-18 03:10:27,459 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 113 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:27,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 462 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:10:27,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55248 states. [2022-01-18 03:10:28,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55248 to 36781. [2022-01-18 03:10:28,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36781 states, 36780 states have (on average 4.6484230560087) internal successors, (170969), 36780 states have internal predecessors, (170969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:28,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36781 states to 36781 states and 170969 transitions. [2022-01-18 03:10:28,930 INFO L78 Accepts]: Start accepts. Automaton has 36781 states and 170969 transitions. Word has length 101 [2022-01-18 03:10:28,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:28,930 INFO L470 AbstractCegarLoop]: Abstraction has 36781 states and 170969 transitions. [2022-01-18 03:10:28,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:28,931 INFO L276 IsEmpty]: Start isEmpty. Operand 36781 states and 170969 transitions. [2022-01-18 03:10:29,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:29,027 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:29,027 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] [2022-01-18 03:10:29,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 03:10:29,028 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)] === [2022-01-18 03:10:29,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:29,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1148767062, now seen corresponding path program 5 times [2022-01-18 03:10:29,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:29,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491163252] [2022-01-18 03:10:29,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:29,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:29,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:29,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491163252] [2022-01-18 03:10:29,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491163252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:29,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:29,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 03:10:29,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701102454] [2022-01-18 03:10:29,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:29,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 03:10:29,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:29,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 03:10:29,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 03:10:29,158 INFO L87 Difference]: Start difference. First operand 36781 states and 170969 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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) [2022-01-18 03:10:30,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:30,177 INFO L93 Difference]: Finished difference Result 59553 states and 270944 transitions. [2022-01-18 03:10:30,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 03:10:30,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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 101 [2022-01-18 03:10:30,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:30,432 INFO L225 Difference]: With dead ends: 59553 [2022-01-18 03:10:30,432 INFO L226 Difference]: Without dead ends: 58614 [2022-01-18 03:10:30,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:10:30,433 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 147 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:30,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 643 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:10:30,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58614 states. [2022-01-18 03:10:31,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58614 to 35991. [2022-01-18 03:10:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35991 states, 35990 states have (on average 4.6207279799944425) internal successors, (166300), 35990 states have internal predecessors, (166300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:31,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35991 states to 35991 states and 166300 transitions. [2022-01-18 03:10:31,829 INFO L78 Accepts]: Start accepts. Automaton has 35991 states and 166300 transitions. Word has length 101 [2022-01-18 03:10:31,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:31,829 INFO L470 AbstractCegarLoop]: Abstraction has 35991 states and 166300 transitions. [2022-01-18 03:10:31,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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) [2022-01-18 03:10:31,829 INFO L276 IsEmpty]: Start isEmpty. Operand 35991 states and 166300 transitions. [2022-01-18 03:10:31,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:31,913 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:31,913 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] [2022-01-18 03:10:31,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 03:10:31,913 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)] === [2022-01-18 03:10:31,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:31,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1164695738, now seen corresponding path program 6 times [2022-01-18 03:10:31,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:31,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001166020] [2022-01-18 03:10:31,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:31,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:32,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:32,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:32,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001166020] [2022-01-18 03:10:32,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001166020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:32,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:32,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:10:32,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574692295] [2022-01-18 03:10:32,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:32,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:10:32,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:32,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:10:32,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:10:32,034 INFO L87 Difference]: Start difference. First operand 35991 states and 166300 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:10:33,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:33,256 INFO L93 Difference]: Finished difference Result 73129 states and 325053 transitions. [2022-01-18 03:10:33,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 03:10:33,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:10:33,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:33,593 INFO L225 Difference]: With dead ends: 73129 [2022-01-18 03:10:33,594 INFO L226 Difference]: Without dead ends: 72775 [2022-01-18 03:10:33,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 03:10:33,594 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 327 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:33,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 710 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:10:33,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72775 states. [2022-01-18 03:10:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72775 to 42115. [2022-01-18 03:10:35,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42115 states, 42114 states have (on average 4.6676639597283565) internal successors, (196574), 42114 states have internal predecessors, (196574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:35,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42115 states to 42115 states and 196574 transitions. [2022-01-18 03:10:35,455 INFO L78 Accepts]: Start accepts. Automaton has 42115 states and 196574 transitions. Word has length 101 [2022-01-18 03:10:35,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:35,455 INFO L470 AbstractCegarLoop]: Abstraction has 42115 states and 196574 transitions. [2022-01-18 03:10:35,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:10:35,456 INFO L276 IsEmpty]: Start isEmpty. Operand 42115 states and 196574 transitions. [2022-01-18 03:10:36,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:36,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:36,054 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] [2022-01-18 03:10:36,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 03:10:36,054 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)] === [2022-01-18 03:10:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:36,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1250229748, now seen corresponding path program 1 times [2022-01-18 03:10:36,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:36,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942481968] [2022-01-18 03:10:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:36,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:36,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:36,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:36,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942481968] [2022-01-18 03:10:36,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942481968] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:10:36,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33732941] [2022-01-18 03:10:36,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:36,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:10:36,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:10:36,213 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) [2022-01-18 03:10:36,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 03:10:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:36,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 03:10:36,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:10:36,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:36,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:10:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:37,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33732941] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 03:10:37,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 03:10:37,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 18 [2022-01-18 03:10:37,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148852267] [2022-01-18 03:10:37,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:37,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:10:37,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:37,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:10:37,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-01-18 03:10:37,032 INFO L87 Difference]: Start difference. First operand 42115 states and 196574 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:10:38,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:38,039 INFO L93 Difference]: Finished difference Result 85330 states and 387617 transitions. [2022-01-18 03:10:38,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 03:10:38,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:10:38,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:38,930 INFO L225 Difference]: With dead ends: 85330 [2022-01-18 03:10:38,930 INFO L226 Difference]: Without dead ends: 82714 [2022-01-18 03:10:38,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2022-01-18 03:10:38,931 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 276 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:38,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 970 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 03:10:39,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82714 states. [2022-01-18 03:10:40,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82714 to 46849. [2022-01-18 03:10:40,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46849 states, 46848 states have (on average 4.64493681693989) internal successors, (217606), 46848 states have internal predecessors, (217606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46849 states to 46849 states and 217606 transitions. [2022-01-18 03:10:40,799 INFO L78 Accepts]: Start accepts. Automaton has 46849 states and 217606 transitions. Word has length 101 [2022-01-18 03:10:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:40,800 INFO L470 AbstractCegarLoop]: Abstraction has 46849 states and 217606 transitions. [2022-01-18 03:10:40,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:10:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand 46849 states and 217606 transitions. [2022-01-18 03:10:40,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:40,930 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:40,930 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] [2022-01-18 03:10:40,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 03:10:41,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-18 03:10:41,131 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)] === [2022-01-18 03:10:41,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:41,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2091700616, now seen corresponding path program 2 times [2022-01-18 03:10:41,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:41,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711746358] [2022-01-18 03:10:41,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:41,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:41,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:41,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:41,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711746358] [2022-01-18 03:10:41,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711746358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:41,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:41,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:10:41,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828087129] [2022-01-18 03:10:41,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:41,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:10:41,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:41,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:10:41,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:10:41,356 INFO L87 Difference]: Start difference. First operand 46849 states and 217606 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:10:42,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:42,879 INFO L93 Difference]: Finished difference Result 85942 states and 384255 transitions. [2022-01-18 03:10:42,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 03:10:42,880 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:10:42,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:43,356 INFO L225 Difference]: With dead ends: 85942 [2022-01-18 03:10:43,356 INFO L226 Difference]: Without dead ends: 84511 [2022-01-18 03:10:43,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-01-18 03:10:43,357 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 379 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:43,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 574 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:10:43,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84511 states. [2022-01-18 03:10:45,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84511 to 48003. [2022-01-18 03:10:45,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48003 states, 48002 states have (on average 4.6668680471647015) internal successors, (224019), 48002 states have internal predecessors, (224019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48003 states to 48003 states and 224019 transitions. [2022-01-18 03:10:45,942 INFO L78 Accepts]: Start accepts. Automaton has 48003 states and 224019 transitions. Word has length 101 [2022-01-18 03:10:45,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:45,943 INFO L470 AbstractCegarLoop]: Abstraction has 48003 states and 224019 transitions. [2022-01-18 03:10:45,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:10:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand 48003 states and 224019 transitions. [2022-01-18 03:10:46,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:46,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:46,066 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] [2022-01-18 03:10:46,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 03:10:46,066 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)] === [2022-01-18 03:10:46,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:46,066 INFO L85 PathProgramCache]: Analyzing trace with hash 825070516, now seen corresponding path program 2 times [2022-01-18 03:10:46,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:46,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681875672] [2022-01-18 03:10:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:46,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:46,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:46,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:46,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681875672] [2022-01-18 03:10:46,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681875672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:46,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:46,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 03:10:46,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218954070] [2022-01-18 03:10:46,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:46,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 03:10:46,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:46,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 03:10:46,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-18 03:10:46,175 INFO L87 Difference]: Start difference. First operand 48003 states and 224019 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:46,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:46,878 INFO L93 Difference]: Finished difference Result 94807 states and 427810 transitions. [2022-01-18 03:10:46,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 03:10:46,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 101 [2022-01-18 03:10:46,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:47,951 INFO L225 Difference]: With dead ends: 94807 [2022-01-18 03:10:47,951 INFO L226 Difference]: Without dead ends: 94018 [2022-01-18 03:10:47,951 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 [2022-01-18 03:10:47,952 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 153 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:47,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 473 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:10:48,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94018 states. [2022-01-18 03:10:49,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94018 to 54941. [2022-01-18 03:10:49,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54941 states, 54940 states have (on average 4.679868947943211) internal successors, (257112), 54940 states have internal predecessors, (257112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:50,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54941 states to 54941 states and 257112 transitions. [2022-01-18 03:10:50,060 INFO L78 Accepts]: Start accepts. Automaton has 54941 states and 257112 transitions. Word has length 101 [2022-01-18 03:10:50,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:50,060 INFO L470 AbstractCegarLoop]: Abstraction has 54941 states and 257112 transitions. [2022-01-18 03:10:50,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 54941 states and 257112 transitions. [2022-01-18 03:10:50,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:50,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:50,214 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] [2022-01-18 03:10:50,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 03:10:50,214 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)] === [2022-01-18 03:10:50,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:50,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1490924426, now seen corresponding path program 2 times [2022-01-18 03:10:50,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:50,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232113606] [2022-01-18 03:10:50,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:50,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:50,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:50,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232113606] [2022-01-18 03:10:50,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232113606] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:10:50,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137899632] [2022-01-18 03:10:50,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 03:10:50,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:10:50,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:10:50,356 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) [2022-01-18 03:10:50,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 03:10:50,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 03:10:50,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 03:10:50,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 03:10:50,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:10:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:50,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:10:51,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:51,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137899632] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 03:10:51,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 03:10:51,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2022-01-18 03:10:51,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170705608] [2022-01-18 03:10:51,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:51,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 03:10:51,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:51,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 03:10:51,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-18 03:10:51,707 INFO L87 Difference]: Start difference. First operand 54941 states and 257112 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:52,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:52,472 INFO L93 Difference]: Finished difference Result 85086 states and 390328 transitions. [2022-01-18 03:10:52,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 03:10:52,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 101 [2022-01-18 03:10:52,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:52,854 INFO L225 Difference]: With dead ends: 85086 [2022-01-18 03:10:52,854 INFO L226 Difference]: Without dead ends: 85086 [2022-01-18 03:10:52,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-18 03:10:52,855 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 192 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:52,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 501 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:10:52,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85086 states. [2022-01-18 03:10:55,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85086 to 57551. [2022-01-18 03:10:55,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57551 states, 57550 states have (on average 4.682971329278888) internal successors, (269505), 57550 states have internal predecessors, (269505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:10:55,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57551 states to 57551 states and 269505 transitions. [2022-01-18 03:10:55,550 INFO L78 Accepts]: Start accepts. Automaton has 57551 states and 269505 transitions. Word has length 101 [2022-01-18 03:10:55,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:10:55,550 INFO L470 AbstractCegarLoop]: Abstraction has 57551 states and 269505 transitions. [2022-01-18 03:10:55,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:10:55,551 INFO L276 IsEmpty]: Start isEmpty. Operand 57551 states and 269505 transitions. [2022-01-18 03:10:55,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:10:55,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:10:55,699 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] [2022-01-18 03:10:55,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 03:10:55,899 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,SelfDestructingSolverStorable13 [2022-01-18 03:10:55,900 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)] === [2022-01-18 03:10:55,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:10:55,900 INFO L85 PathProgramCache]: Analyzing trace with hash -538059778, now seen corresponding path program 3 times [2022-01-18 03:10:55,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:10:55,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844964572] [2022-01-18 03:10:55,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:10:55,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:10:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:10:56,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:10:56,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:10:56,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844964572] [2022-01-18 03:10:56,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844964572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:10:56,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:10:56,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 03:10:56,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970062132] [2022-01-18 03:10:56,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:10:56,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 03:10:56,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:10:56,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 03:10:56,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 03:10:56,058 INFO L87 Difference]: Start difference. First operand 57551 states and 269505 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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) [2022-01-18 03:10:57,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:10:57,339 INFO L93 Difference]: Finished difference Result 90905 states and 413345 transitions. [2022-01-18 03:10:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 03:10:57,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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 101 [2022-01-18 03:10:57,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:10:57,748 INFO L225 Difference]: With dead ends: 90905 [2022-01-18 03:10:57,748 INFO L226 Difference]: Without dead ends: 90905 [2022-01-18 03:10:57,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-18 03:10:57,749 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 195 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:10:57,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 650 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:10:57,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90905 states. [2022-01-18 03:10:59,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90905 to 57641. [2022-01-18 03:10:59,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57641 states, 57640 states have (on average 4.690249826509368) internal successors, (270346), 57640 states have internal predecessors, (270346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:11:00,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57641 states to 57641 states and 270346 transitions. [2022-01-18 03:11:00,434 INFO L78 Accepts]: Start accepts. Automaton has 57641 states and 270346 transitions. Word has length 101 [2022-01-18 03:11:00,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:11:00,434 INFO L470 AbstractCegarLoop]: Abstraction has 57641 states and 270346 transitions. [2022-01-18 03:11:00,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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) [2022-01-18 03:11:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 57641 states and 270346 transitions. [2022-01-18 03:11:00,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:11:00,600 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:11:00,600 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] [2022-01-18 03:11:00,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 03:11:00,600 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)] === [2022-01-18 03:11:00,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:11:00,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1066615254, now seen corresponding path program 3 times [2022-01-18 03:11:00,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:11:00,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794374787] [2022-01-18 03:11:00,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:11:00,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:11:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:11:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:00,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:11:00,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794374787] [2022-01-18 03:11:00,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794374787] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:11:00,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825206475] [2022-01-18 03:11:00,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 03:11:00,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:11:00,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:11:00,877 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) [2022-01-18 03:11:00,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 03:11:00,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 03:11:00,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 03:11:00,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-18 03:11:00,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:11:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:01,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:11:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:01,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825206475] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 03:11:01,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 03:11:01,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 8] total 22 [2022-01-18 03:11:01,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819485346] [2022-01-18 03:11:01,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:11:01,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:11:01,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:11:01,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:11:01,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2022-01-18 03:11:01,910 INFO L87 Difference]: Start difference. First operand 57641 states and 270346 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:11:03,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:11:03,980 INFO L93 Difference]: Finished difference Result 140012 states and 638506 transitions. [2022-01-18 03:11:03,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 03:11:03,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:11:03,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:11:04,662 INFO L225 Difference]: With dead ends: 140012 [2022-01-18 03:11:04,663 INFO L226 Difference]: Without dead ends: 138992 [2022-01-18 03:11:04,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=680, Unknown=0, NotChecked=0, Total=812 [2022-01-18 03:11:04,664 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 446 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:11:04,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 931 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:11:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138992 states. [2022-01-18 03:11:07,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138992 to 58653. [2022-01-18 03:11:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58653 states, 58652 states have (on average 4.714263793221033) internal successors, (276501), 58652 states have internal predecessors, (276501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:11:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58653 states to 58653 states and 276501 transitions. [2022-01-18 03:11:07,965 INFO L78 Accepts]: Start accepts. Automaton has 58653 states and 276501 transitions. Word has length 101 [2022-01-18 03:11:07,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:11:07,965 INFO L470 AbstractCegarLoop]: Abstraction has 58653 states and 276501 transitions. [2022-01-18 03:11:07,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:11:07,965 INFO L276 IsEmpty]: Start isEmpty. Operand 58653 states and 276501 transitions. [2022-01-18 03:11:08,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:11:08,117 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:11:08,118 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] [2022-01-18 03:11:08,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 03:11:08,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:11:08,318 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)] === [2022-01-18 03:11:08,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:11:08,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2008704442, now seen corresponding path program 4 times [2022-01-18 03:11:08,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:11:08,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298460225] [2022-01-18 03:11:08,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:11:08,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:11:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:11:09,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:09,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:11:09,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298460225] [2022-01-18 03:11:09,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298460225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:11:09,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:11:09,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:11:09,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606323951] [2022-01-18 03:11:09,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:11:09,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:11:09,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:11:09,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:11:09,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:11:09,050 INFO L87 Difference]: Start difference. First operand 58653 states and 276501 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:11:10,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:11:10,088 INFO L93 Difference]: Finished difference Result 102689 states and 465573 transitions. [2022-01-18 03:11:10,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 03:11:10,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:11:10,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:11:11,186 INFO L225 Difference]: With dead ends: 102689 [2022-01-18 03:11:11,195 INFO L226 Difference]: Without dead ends: 101537 [2022-01-18 03:11:11,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 03:11:11,196 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 239 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:11:11,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 753 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:11:11,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101537 states. [2022-01-18 03:11:13,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101537 to 62749. [2022-01-18 03:11:13,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62749 states, 62748 states have (on average 4.711640211640212) internal successors, (295646), 62748 states have internal predecessors, (295646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:11:13,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62749 states to 62749 states and 295646 transitions. [2022-01-18 03:11:13,538 INFO L78 Accepts]: Start accepts. Automaton has 62749 states and 295646 transitions. Word has length 101 [2022-01-18 03:11:13,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:11:13,538 INFO L470 AbstractCegarLoop]: Abstraction has 62749 states and 295646 transitions. [2022-01-18 03:11:13,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:11:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 62749 states and 295646 transitions. [2022-01-18 03:11:13,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:11:13,721 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:11:13,721 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] [2022-01-18 03:11:13,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 03:11:13,721 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)] === [2022-01-18 03:11:13,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:11:13,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1001247478, now seen corresponding path program 3 times [2022-01-18 03:11:13,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:11:13,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504366291] [2022-01-18 03:11:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:11:13,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:11:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:11:13,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:13,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:11:13,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504366291] [2022-01-18 03:11:13,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504366291] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:11:13,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:11:13,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:11:13,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515247689] [2022-01-18 03:11:13,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:11:13,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:11:13,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:11:13,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:11:13,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:11:13,899 INFO L87 Difference]: Start difference. First operand 62749 states and 295646 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:11:15,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:11:15,604 INFO L93 Difference]: Finished difference Result 104819 states and 477892 transitions. [2022-01-18 03:11:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 03:11:15,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:11:15,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:11:16,114 INFO L225 Difference]: With dead ends: 104819 [2022-01-18 03:11:16,114 INFO L226 Difference]: Without dead ends: 103547 [2022-01-18 03:11:16,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 03:11:16,115 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 332 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:11:16,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 753 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:11:16,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103547 states. [2022-01-18 03:11:18,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103547 to 63625. [2022-01-18 03:11:18,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63625 states, 63624 states have (on average 4.714038727524205) internal successors, (299926), 63624 states have internal predecessors, (299926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:11:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63625 states to 63625 states and 299926 transitions. [2022-01-18 03:11:19,192 INFO L78 Accepts]: Start accepts. Automaton has 63625 states and 299926 transitions. Word has length 101 [2022-01-18 03:11:19,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:11:19,192 INFO L470 AbstractCegarLoop]: Abstraction has 63625 states and 299926 transitions. [2022-01-18 03:11:19,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:11:19,192 INFO L276 IsEmpty]: Start isEmpty. Operand 63625 states and 299926 transitions. [2022-01-18 03:11:19,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:11:19,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:11:19,368 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] [2022-01-18 03:11:19,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 03:11:19,369 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)] === [2022-01-18 03:11:19,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:11:19,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1632737120, now seen corresponding path program 5 times [2022-01-18 03:11:19,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:11:19,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685803866] [2022-01-18 03:11:19,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:11:19,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:11:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:11:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:19,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:11:19,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685803866] [2022-01-18 03:11:19,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685803866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:11:19,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:11:19,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:11:19,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471215753] [2022-01-18 03:11:19,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:11:19,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:11:19,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:11:19,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:11:19,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:11:19,558 INFO L87 Difference]: Start difference. First operand 63625 states and 299926 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:11:21,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:11:21,221 INFO L93 Difference]: Finished difference Result 116066 states and 531066 transitions. [2022-01-18 03:11:21,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 03:11:21,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:11:21,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:11:22,482 INFO L225 Difference]: With dead ends: 116066 [2022-01-18 03:11:22,482 INFO L226 Difference]: Without dead ends: 114764 [2022-01-18 03:11:22,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-18 03:11:22,483 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 256 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:11:22,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 822 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:11:22,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114764 states. [2022-01-18 03:11:24,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114764 to 64505. [2022-01-18 03:11:24,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64505 states, 64504 states have (on average 4.708762247302493) internal successors, (303734), 64504 states have internal predecessors, (303734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:11:24,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64505 states to 64505 states and 303734 transitions. [2022-01-18 03:11:24,960 INFO L78 Accepts]: Start accepts. Automaton has 64505 states and 303734 transitions. Word has length 101 [2022-01-18 03:11:24,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:11:24,960 INFO L470 AbstractCegarLoop]: Abstraction has 64505 states and 303734 transitions. [2022-01-18 03:11:24,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:11:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand 64505 states and 303734 transitions. [2022-01-18 03:11:25,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:11:25,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:11:25,752 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] [2022-01-18 03:11:25,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 03:11:25,753 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)] === [2022-01-18 03:11:25,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:11:25,753 INFO L85 PathProgramCache]: Analyzing trace with hash -159366288, now seen corresponding path program 7 times [2022-01-18 03:11:25,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:11:25,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422589393] [2022-01-18 03:11:25,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:11:25,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:11:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:11:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:25,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:11:25,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422589393] [2022-01-18 03:11:25,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422589393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:11:25,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:11:25,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:11:25,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811635313] [2022-01-18 03:11:25,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:11:25,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:11:25,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:11:25,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:11:25,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:11:25,963 INFO L87 Difference]: Start difference. First operand 64505 states and 303734 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) [2022-01-18 03:11:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:11:27,936 INFO L93 Difference]: Finished difference Result 133297 states and 606455 transitions. [2022-01-18 03:11:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 03:11:27,936 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 101 [2022-01-18 03:11:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:11:29,061 INFO L225 Difference]: With dead ends: 133297 [2022-01-18 03:11:29,062 INFO L226 Difference]: Without dead ends: 131701 [2022-01-18 03:11:29,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-01-18 03:11:29,063 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 548 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:11:29,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 798 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:11:29,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131701 states. [2022-01-18 03:11:31,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131701 to 69664. [2022-01-18 03:11:31,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69664 states, 69663 states have (on average 4.735483685744226) internal successors, (329888), 69663 states have internal predecessors, (329888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:11:32,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69664 states to 69664 states and 329888 transitions. [2022-01-18 03:11:32,284 INFO L78 Accepts]: Start accepts. Automaton has 69664 states and 329888 transitions. Word has length 101 [2022-01-18 03:11:32,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:11:32,284 INFO L470 AbstractCegarLoop]: Abstraction has 69664 states and 329888 transitions. [2022-01-18 03:11:32,284 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) [2022-01-18 03:11:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand 69664 states and 329888 transitions. [2022-01-18 03:11:32,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:11:32,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:11:32,470 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] [2022-01-18 03:11:32,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 03:11:32,471 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)] === [2022-01-18 03:11:32,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:11:32,471 INFO L85 PathProgramCache]: Analyzing trace with hash -64670636, now seen corresponding path program 8 times [2022-01-18 03:11:32,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:11:32,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706714117] [2022-01-18 03:11:32,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:11:32,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:11:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:11:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:32,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:11:32,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706714117] [2022-01-18 03:11:32,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706714117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:11:32,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:11:32,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:11:32,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667953243] [2022-01-18 03:11:32,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:11:32,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:11:32,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:11:32,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:11:32,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:11:32,638 INFO L87 Difference]: Start difference. First operand 69664 states and 329888 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) [2022-01-18 03:11:35,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:11:35,864 INFO L93 Difference]: Finished difference Result 173005 states and 788172 transitions. [2022-01-18 03:11:35,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 03:11:35,865 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 101 [2022-01-18 03:11:35,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:11:36,880 INFO L225 Difference]: With dead ends: 173005 [2022-01-18 03:11:36,880 INFO L226 Difference]: Without dead ends: 172927 [2022-01-18 03:11:36,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-01-18 03:11:36,881 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 726 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 03:11:36,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 783 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 03:11:37,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172927 states. [2022-01-18 03:11:40,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172927 to 73078. [2022-01-18 03:11:40,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73078 states, 73077 states have (on average 4.785117068297823) internal successors, (349682), 73077 states have internal predecessors, (349682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:11:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73078 states to 73078 states and 349682 transitions. [2022-01-18 03:11:41,446 INFO L78 Accepts]: Start accepts. Automaton has 73078 states and 349682 transitions. Word has length 101 [2022-01-18 03:11:41,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:11:41,446 INFO L470 AbstractCegarLoop]: Abstraction has 73078 states and 349682 transitions. [2022-01-18 03:11:41,447 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) [2022-01-18 03:11:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 73078 states and 349682 transitions. [2022-01-18 03:11:41,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:11:41,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:11:41,752 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] [2022-01-18 03:11:41,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 03:11:41,752 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)] === [2022-01-18 03:11:41,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:11:41,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1014744858, now seen corresponding path program 9 times [2022-01-18 03:11:41,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:11:41,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143279228] [2022-01-18 03:11:41,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:11:41,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:11:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:11:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:41,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:11:41,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143279228] [2022-01-18 03:11:41,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143279228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:11:41,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:11:41,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:11:41,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124932401] [2022-01-18 03:11:41,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:11:41,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:11:41,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:11:41,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:11:41,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:11:41,923 INFO L87 Difference]: Start difference. First operand 73078 states and 349682 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) [2022-01-18 03:11:44,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:11:44,206 INFO L93 Difference]: Finished difference Result 173327 states and 795128 transitions. [2022-01-18 03:11:44,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 03:11:44,206 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 101 [2022-01-18 03:11:44,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:11:45,368 INFO L225 Difference]: With dead ends: 173327 [2022-01-18 03:11:45,368 INFO L226 Difference]: Without dead ends: 171809 [2022-01-18 03:11:45,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-01-18 03:11:45,369 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 425 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 03:11:45,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 1026 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 03:11:45,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171809 states. [2022-01-18 03:11:49,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171809 to 73644. [2022-01-18 03:11:49,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73644 states, 73643 states have (on average 4.799356354303871) internal successors, (353439), 73643 states have internal predecessors, (353439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:11:49,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73644 states to 73644 states and 353439 transitions. [2022-01-18 03:11:49,992 INFO L78 Accepts]: Start accepts. Automaton has 73644 states and 353439 transitions. Word has length 101 [2022-01-18 03:11:49,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:11:49,992 INFO L470 AbstractCegarLoop]: Abstraction has 73644 states and 353439 transitions. [2022-01-18 03:11:49,992 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) [2022-01-18 03:11:49,993 INFO L276 IsEmpty]: Start isEmpty. Operand 73644 states and 353439 transitions. [2022-01-18 03:11:50,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:11:50,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:11:50,193 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] [2022-01-18 03:11:50,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 03:11:50,193 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)] === [2022-01-18 03:11:50,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:11:50,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1523804302, now seen corresponding path program 10 times [2022-01-18 03:11:50,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:11:50,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604821826] [2022-01-18 03:11:50,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:11:50,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:11:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:11:50,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:50,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:11:50,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604821826] [2022-01-18 03:11:50,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604821826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:11:50,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:11:50,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:11:50,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622263951] [2022-01-18 03:11:50,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:11:50,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:11:50,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:11:50,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:11:50,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:11:50,341 INFO L87 Difference]: Start difference. First operand 73644 states and 353439 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) [2022-01-18 03:11:52,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:11:52,501 INFO L93 Difference]: Finished difference Result 167944 states and 773541 transitions. [2022-01-18 03:11:52,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 03:11:52,501 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 101 [2022-01-18 03:11:52,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:11:54,084 INFO L225 Difference]: With dead ends: 167944 [2022-01-18 03:11:54,084 INFO L226 Difference]: Without dead ends: 166000 [2022-01-18 03:11:54,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-01-18 03:11:54,085 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 645 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:11:54,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 870 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:11:54,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166000 states. [2022-01-18 03:11:57,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166000 to 72812. [2022-01-18 03:11:57,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72812 states, 72811 states have (on average 4.792256664514977) internal successors, (348929), 72811 states have internal predecessors, (348929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:11:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72812 states to 72812 states and 348929 transitions. [2022-01-18 03:11:57,841 INFO L78 Accepts]: Start accepts. Automaton has 72812 states and 348929 transitions. Word has length 101 [2022-01-18 03:11:57,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:11:57,841 INFO L470 AbstractCegarLoop]: Abstraction has 72812 states and 348929 transitions. [2022-01-18 03:11:57,841 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) [2022-01-18 03:11:57,841 INFO L276 IsEmpty]: Start isEmpty. Operand 72812 states and 348929 transitions. [2022-01-18 03:11:58,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:11:58,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:11:58,037 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] [2022-01-18 03:11:58,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 03:11:58,037 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)] === [2022-01-18 03:11:58,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:11:58,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1219880012, now seen corresponding path program 4 times [2022-01-18 03:11:58,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:11:58,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926212430] [2022-01-18 03:11:58,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:11:58,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:11:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:11:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:11:58,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:11:58,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926212430] [2022-01-18 03:11:58,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926212430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:11:58,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:11:58,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:11:58,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453123870] [2022-01-18 03:11:58,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:11:58,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:11:58,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:11:58,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:11:58,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:11:58,189 INFO L87 Difference]: Start difference. First operand 72812 states and 348929 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:11:59,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:11:59,949 INFO L93 Difference]: Finished difference Result 123563 states and 563369 transitions. [2022-01-18 03:11:59,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 03:11:59,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:11:59,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:12:01,020 INFO L225 Difference]: With dead ends: 123563 [2022-01-18 03:12:01,021 INFO L226 Difference]: Without dead ends: 121565 [2022-01-18 03:12:01,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 03:12:01,022 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 279 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:12:01,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 653 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:12:01,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121565 states. [2022-01-18 03:12:03,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121565 to 71345. [2022-01-18 03:12:03,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71345 states, 71344 states have (on average 4.789891231217762) internal successors, (341730), 71344 states have internal predecessors, (341730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:12:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71345 states to 71345 states and 341730 transitions. [2022-01-18 03:12:04,213 INFO L78 Accepts]: Start accepts. Automaton has 71345 states and 341730 transitions. Word has length 101 [2022-01-18 03:12:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:12:04,214 INFO L470 AbstractCegarLoop]: Abstraction has 71345 states and 341730 transitions. [2022-01-18 03:12:04,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 71345 states and 341730 transitions. [2022-01-18 03:12:04,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:12:04,508 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:12:04,508 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] [2022-01-18 03:12:04,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 03:12:04,509 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)] === [2022-01-18 03:12:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:12:04,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1873068082, now seen corresponding path program 5 times [2022-01-18 03:12:04,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:12:04,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478764324] [2022-01-18 03:12:04,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:12:04,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:12:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:12:04,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:04,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:12:04,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478764324] [2022-01-18 03:12:04,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478764324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:12:04,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:12:04,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:12:04,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970834899] [2022-01-18 03:12:04,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:12:04,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:12:04,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:12:04,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:12:04,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:12:04,705 INFO L87 Difference]: Start difference. First operand 71345 states and 341730 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:05,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:12:05,542 INFO L93 Difference]: Finished difference Result 78692 states and 372559 transitions. [2022-01-18 03:12:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 03:12:05,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:12:05,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:12:06,596 INFO L225 Difference]: With dead ends: 78692 [2022-01-18 03:12:06,596 INFO L226 Difference]: Without dead ends: 78692 [2022-01-18 03:12:06,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2022-01-18 03:12:06,596 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 178 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:12:06,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 516 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:12:06,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78692 states. [2022-01-18 03:12:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78692 to 72013. [2022-01-18 03:12:08,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72013 states, 72012 states have (on average 4.787146586679998) internal successors, (344732), 72012 states have internal predecessors, (344732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:12:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72013 states to 72013 states and 344732 transitions. [2022-01-18 03:12:08,819 INFO L78 Accepts]: Start accepts. Automaton has 72013 states and 344732 transitions. Word has length 101 [2022-01-18 03:12:08,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:12:08,820 INFO L470 AbstractCegarLoop]: Abstraction has 72013 states and 344732 transitions. [2022-01-18 03:12:08,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 72013 states and 344732 transitions. [2022-01-18 03:12:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:12:09,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:12:09,012 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] [2022-01-18 03:12:09,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 03:12:09,012 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)] === [2022-01-18 03:12:09,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:12:09,013 INFO L85 PathProgramCache]: Analyzing trace with hash 236106550, now seen corresponding path program 6 times [2022-01-18 03:12:09,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:12:09,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407806822] [2022-01-18 03:12:09,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:12:09,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:12:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:12:09,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:09,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:12:09,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407806822] [2022-01-18 03:12:09,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407806822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:12:09,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:12:09,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:12:09,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271852574] [2022-01-18 03:12:09,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:12:09,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:12:09,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:12:09,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:12:09,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:12:09,157 INFO L87 Difference]: Start difference. First operand 72013 states and 344732 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:10,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:12:10,899 INFO L93 Difference]: Finished difference Result 115768 states and 536362 transitions. [2022-01-18 03:12:10,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 03:12:10,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:12:10,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:12:12,145 INFO L225 Difference]: With dead ends: 115768 [2022-01-18 03:12:12,145 INFO L226 Difference]: Without dead ends: 114436 [2022-01-18 03:12:12,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-01-18 03:12:12,146 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 373 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:12:12,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 703 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:12:12,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114436 states. [2022-01-18 03:12:14,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114436 to 71105. [2022-01-18 03:12:14,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71105 states, 71104 states have (on average 4.780715571557156) internal successors, (339928), 71104 states have internal predecessors, (339928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:12:15,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71105 states to 71105 states and 339928 transitions. [2022-01-18 03:12:15,171 INFO L78 Accepts]: Start accepts. Automaton has 71105 states and 339928 transitions. Word has length 101 [2022-01-18 03:12:15,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:12:15,171 INFO L470 AbstractCegarLoop]: Abstraction has 71105 states and 339928 transitions. [2022-01-18 03:12:15,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:15,171 INFO L276 IsEmpty]: Start isEmpty. Operand 71105 states and 339928 transitions. [2022-01-18 03:12:15,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:12:15,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:12:15,481 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] [2022-01-18 03:12:15,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 03:12:15,482 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)] === [2022-01-18 03:12:15,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:12:15,482 INFO L85 PathProgramCache]: Analyzing trace with hash 644625612, now seen corresponding path program 4 times [2022-01-18 03:12:15,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:12:15,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098619882] [2022-01-18 03:12:15,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:12:15,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:12:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:12:15,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:15,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:12:15,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098619882] [2022-01-18 03:12:15,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098619882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:12:15,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:12:15,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 03:12:15,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440144976] [2022-01-18 03:12:15,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:12:15,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 03:12:15,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:12:15,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 03:12:15,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 03:12:15,584 INFO L87 Difference]: Start difference. First operand 71105 states and 339928 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:12:17,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:12:17,140 INFO L93 Difference]: Finished difference Result 113596 states and 521253 transitions. [2022-01-18 03:12:17,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 03:12:17,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 101 [2022-01-18 03:12:17,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:12:17,770 INFO L225 Difference]: With dead ends: 113596 [2022-01-18 03:12:17,770 INFO L226 Difference]: Without dead ends: 111391 [2022-01-18 03:12:17,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 03:12:17,771 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 164 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:12:17,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 430 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:12:17,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111391 states. [2022-01-18 03:12:19,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111391 to 74997. [2022-01-18 03:12:20,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74997 states, 74996 states have (on average 4.776268067630274) internal successors, (358201), 74996 states have internal predecessors, (358201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:12:20,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74997 states to 74997 states and 358201 transitions. [2022-01-18 03:12:20,957 INFO L78 Accepts]: Start accepts. Automaton has 74997 states and 358201 transitions. Word has length 101 [2022-01-18 03:12:20,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:12:20,958 INFO L470 AbstractCegarLoop]: Abstraction has 74997 states and 358201 transitions. [2022-01-18 03:12:20,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:12:20,958 INFO L276 IsEmpty]: Start isEmpty. Operand 74997 states and 358201 transitions. [2022-01-18 03:12:21,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:12:21,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:12:21,174 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] [2022-01-18 03:12:21,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 03:12:21,174 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)] === [2022-01-18 03:12:21,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:12:21,174 INFO L85 PathProgramCache]: Analyzing trace with hash -718504682, now seen corresponding path program 5 times [2022-01-18 03:12:21,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:12:21,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179123444] [2022-01-18 03:12:21,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:12:21,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:12:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:12:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:21,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:12:21,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179123444] [2022-01-18 03:12:21,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179123444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:12:21,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:12:21,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 03:12:21,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254914637] [2022-01-18 03:12:21,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:12:21,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 03:12:21,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:12:21,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 03:12:21,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 03:12:21,277 INFO L87 Difference]: Start difference. First operand 74997 states and 358201 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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) [2022-01-18 03:12:23,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:12:23,031 INFO L93 Difference]: Finished difference Result 121981 states and 564458 transitions. [2022-01-18 03:12:23,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 03:12:23,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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 101 [2022-01-18 03:12:23,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:12:23,658 INFO L225 Difference]: With dead ends: 121981 [2022-01-18 03:12:23,659 INFO L226 Difference]: Without dead ends: 120577 [2022-01-18 03:12:23,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:12:23,659 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 244 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:12:23,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 620 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:12:23,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120577 states. [2022-01-18 03:12:26,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120577 to 80811. [2022-01-18 03:12:26,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80811 states, 80810 states have (on average 4.800631110011137) internal successors, (387939), 80810 states have internal predecessors, (387939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:12:26,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80811 states to 80811 states and 387939 transitions. [2022-01-18 03:12:26,969 INFO L78 Accepts]: Start accepts. Automaton has 80811 states and 387939 transitions. Word has length 101 [2022-01-18 03:12:26,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:12:26,969 INFO L470 AbstractCegarLoop]: Abstraction has 80811 states and 387939 transitions. [2022-01-18 03:12:26,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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) [2022-01-18 03:12:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand 80811 states and 387939 transitions. [2022-01-18 03:12:27,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:12:27,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:12:27,193 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] [2022-01-18 03:12:27,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 03:12:27,193 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)] === [2022-01-18 03:12:27,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:12:27,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1659670096, now seen corresponding path program 6 times [2022-01-18 03:12:27,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:12:27,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467761002] [2022-01-18 03:12:27,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:12:27,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:12:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:12:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:27,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:12:27,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467761002] [2022-01-18 03:12:27,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467761002] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:12:27,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337865162] [2022-01-18 03:12:27,865 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 03:12:27,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:12:27,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:12:27,887 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) [2022-01-18 03:12:27,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 03:12:28,129 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-01-18 03:12:28,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 03:12:28,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-18 03:12:28,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:12:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:28,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:12:28,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:28,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337865162] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-18 03:12:28,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-18 03:12:28,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2022-01-18 03:12:28,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278456002] [2022-01-18 03:12:28,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:12:28,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 03:12:28,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:12:28,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 03:12:28,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 03:12:28,616 INFO L87 Difference]: Start difference. First operand 80811 states and 387939 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:12:29,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:12:29,493 INFO L93 Difference]: Finished difference Result 118207 states and 550550 transitions. [2022-01-18 03:12:29,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 03:12:29,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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 101 [2022-01-18 03:12:29,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:12:30,867 INFO L225 Difference]: With dead ends: 118207 [2022-01-18 03:12:30,867 INFO L226 Difference]: Without dead ends: 118207 [2022-01-18 03:12:30,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-18 03:12:30,868 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 218 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:12:30,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 459 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:12:31,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118207 states. [2022-01-18 03:12:33,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118207 to 79941. [2022-01-18 03:12:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79941 states, 79940 states have (on average 4.783149862396797) internal successors, (382365), 79940 states have internal predecessors, (382365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:12:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79941 states to 79941 states and 382365 transitions. [2022-01-18 03:12:34,345 INFO L78 Accepts]: Start accepts. Automaton has 79941 states and 382365 transitions. Word has length 101 [2022-01-18 03:12:34,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:12:34,345 INFO L470 AbstractCegarLoop]: Abstraction has 79941 states and 382365 transitions. [2022-01-18 03:12:34,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2022-01-18 03:12:34,346 INFO L276 IsEmpty]: Start isEmpty. Operand 79941 states and 382365 transitions. [2022-01-18 03:12:34,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:12:34,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:12:34,568 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] [2022-01-18 03:12:34,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 03:12:34,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-01-18 03:12:34,768 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)] === [2022-01-18 03:12:34,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:12:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash 899081794, now seen corresponding path program 6 times [2022-01-18 03:12:34,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:12:34,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556126527] [2022-01-18 03:12:34,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:12:34,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:12:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:12:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:34,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:12:34,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556126527] [2022-01-18 03:12:34,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556126527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:12:34,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:12:34,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:12:34,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572231529] [2022-01-18 03:12:34,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:12:34,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:12:34,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:12:34,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:12:34,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:12:34,891 INFO L87 Difference]: Start difference. First operand 79941 states and 382365 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:36,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:12:36,855 INFO L93 Difference]: Finished difference Result 116456 states and 535973 transitions. [2022-01-18 03:12:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 03:12:36,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:12:36,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:12:37,861 INFO L225 Difference]: With dead ends: 116456 [2022-01-18 03:12:37,867 INFO L226 Difference]: Without dead ends: 115106 [2022-01-18 03:12:37,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 03:12:37,868 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 331 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:12:37,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 687 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:12:38,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115106 states. [2022-01-18 03:12:40,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115106 to 83228. [2022-01-18 03:12:40,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83228 states, 83227 states have (on average 4.7943696156295434) internal successors, (399021), 83227 states have internal predecessors, (399021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:12:41,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83228 states to 83228 states and 399021 transitions. [2022-01-18 03:12:41,143 INFO L78 Accepts]: Start accepts. Automaton has 83228 states and 399021 transitions. Word has length 101 [2022-01-18 03:12:41,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:12:41,143 INFO L470 AbstractCegarLoop]: Abstraction has 83228 states and 399021 transitions. [2022-01-18 03:12:41,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:41,144 INFO L276 IsEmpty]: Start isEmpty. Operand 83228 states and 399021 transitions. [2022-01-18 03:12:42,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:12:42,009 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:12:42,009 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] [2022-01-18 03:12:42,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 03:12:42,009 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)] === [2022-01-18 03:12:42,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:12:42,010 INFO L85 PathProgramCache]: Analyzing trace with hash -43022780, now seen corresponding path program 7 times [2022-01-18 03:12:42,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:12:42,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476830967] [2022-01-18 03:12:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:12:42,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:12:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:12:42,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:42,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:12:42,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476830967] [2022-01-18 03:12:42,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476830967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:12:42,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:12:42,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:12:42,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044780967] [2022-01-18 03:12:42,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:12:42,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:12:42,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:12:42,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:12:42,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:12:42,214 INFO L87 Difference]: Start difference. First operand 83228 states and 399021 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:43,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:12:43,231 INFO L93 Difference]: Finished difference Result 110699 states and 511412 transitions. [2022-01-18 03:12:43,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 03:12:43,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:12:43,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:12:44,512 INFO L225 Difference]: With dead ends: 110699 [2022-01-18 03:12:44,512 INFO L226 Difference]: Without dead ends: 109511 [2022-01-18 03:12:44,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 03:12:44,513 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 354 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:12:44,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 606 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:12:44,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109511 states. [2022-01-18 03:12:46,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109511 to 82018. [2022-01-18 03:12:46,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82018 states, 82017 states have (on average 4.802894521867418) internal successors, (393919), 82017 states have internal predecessors, (393919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:12:47,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82018 states to 82018 states and 393919 transitions. [2022-01-18 03:12:47,830 INFO L78 Accepts]: Start accepts. Automaton has 82018 states and 393919 transitions. Word has length 101 [2022-01-18 03:12:47,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:12:47,831 INFO L470 AbstractCegarLoop]: Abstraction has 82018 states and 393919 transitions. [2022-01-18 03:12:47,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:47,831 INFO L276 IsEmpty]: Start isEmpty. Operand 82018 states and 393919 transitions. [2022-01-18 03:12:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:12:48,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:12:48,083 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] [2022-01-18 03:12:48,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 03:12:48,083 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)] === [2022-01-18 03:12:48,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:12:48,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1913085368, now seen corresponding path program 7 times [2022-01-18 03:12:48,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:12:48,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511223734] [2022-01-18 03:12:48,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:12:48,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:12:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:12:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:48,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:12:48,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511223734] [2022-01-18 03:12:48,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511223734] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:12:48,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:12:48,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:12:48,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135149170] [2022-01-18 03:12:48,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:12:48,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:12:48,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:12:48,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:12:48,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:12:48,197 INFO L87 Difference]: Start difference. First operand 82018 states and 393919 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:12:49,950 INFO L93 Difference]: Finished difference Result 120061 states and 560917 transitions. [2022-01-18 03:12:49,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 03:12:49,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:12:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:12:50,556 INFO L225 Difference]: With dead ends: 120061 [2022-01-18 03:12:50,556 INFO L226 Difference]: Without dead ends: 117151 [2022-01-18 03:12:50,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 03:12:50,557 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 417 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:12:50,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 753 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:12:50,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117151 states. [2022-01-18 03:12:53,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117151 to 79872. [2022-01-18 03:12:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79872 states, 79871 states have (on average 4.816566713826044) internal successors, (384704), 79871 states have internal predecessors, (384704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:12:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79872 states to 79872 states and 384704 transitions. [2022-01-18 03:12:53,916 INFO L78 Accepts]: Start accepts. Automaton has 79872 states and 384704 transitions. Word has length 101 [2022-01-18 03:12:53,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:12:53,916 INFO L470 AbstractCegarLoop]: Abstraction has 79872 states and 384704 transitions. [2022-01-18 03:12:53,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:12:53,916 INFO L276 IsEmpty]: Start isEmpty. Operand 79872 states and 384704 transitions. [2022-01-18 03:12:54,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:12:54,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:12:54,143 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] [2022-01-18 03:12:54,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 03:12:54,143 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)] === [2022-01-18 03:12:54,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:12:54,144 INFO L85 PathProgramCache]: Analyzing trace with hash 740939278, now seen corresponding path program 7 times [2022-01-18 03:12:54,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:12:54,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945453647] [2022-01-18 03:12:54,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:12:54,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:12:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:12:55,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:12:55,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:12:55,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945453647] [2022-01-18 03:12:55,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945453647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:12:55,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:12:55,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:12:55,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959282706] [2022-01-18 03:12:55,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:12:55,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:12:55,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:12:55,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:12:55,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:12:55,032 INFO L87 Difference]: Start difference. First operand 79872 states and 384704 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) [2022-01-18 03:12:55,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:12:55,892 INFO L93 Difference]: Finished difference Result 91504 states and 430433 transitions. [2022-01-18 03:12:55,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 03:12:55,892 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 101 [2022-01-18 03:12:55,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:12:56,285 INFO L225 Difference]: With dead ends: 91504 [2022-01-18 03:12:56,285 INFO L226 Difference]: Without dead ends: 90442 [2022-01-18 03:12:56,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2022-01-18 03:12:56,286 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 275 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:12:56,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 602 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:12:56,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90442 states. [2022-01-18 03:12:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90442 to 80068. [2022-01-18 03:12:58,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80068 states, 80067 states have (on average 4.815566962668765) internal successors, (385568), 80067 states have internal predecessors, (385568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:12:59,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80068 states to 80068 states and 385568 transitions. [2022-01-18 03:12:59,356 INFO L78 Accepts]: Start accepts. Automaton has 80068 states and 385568 transitions. Word has length 101 [2022-01-18 03:12:59,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:12:59,356 INFO L470 AbstractCegarLoop]: Abstraction has 80068 states and 385568 transitions. [2022-01-18 03:12:59,356 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) [2022-01-18 03:12:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 80068 states and 385568 transitions. [2022-01-18 03:13:00,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:13:00,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:13:00,163 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] [2022-01-18 03:13:00,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 03:13:00,163 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)] === [2022-01-18 03:13:00,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:13:00,164 INFO L85 PathProgramCache]: Analyzing trace with hash -416865566, now seen corresponding path program 8 times [2022-01-18 03:13:00,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:13:00,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450685163] [2022-01-18 03:13:00,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:13:00,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:13:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:13:00,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:13:00,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:13:00,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450685163] [2022-01-18 03:13:00,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450685163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:13:00,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:13:00,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 03:13:00,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486126527] [2022-01-18 03:13:00,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:13:00,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 03:13:00,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:13:00,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 03:13:00,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-01-18 03:13:00,434 INFO L87 Difference]: Start difference. First operand 80068 states and 385568 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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) [2022-01-18 03:13:02,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:13:02,980 INFO L93 Difference]: Finished difference Result 152768 states and 711905 transitions. [2022-01-18 03:13:02,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 03:13:02,980 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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 101 [2022-01-18 03:13:02,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:13:03,801 INFO L225 Difference]: With dead ends: 152768 [2022-01-18 03:13:03,801 INFO L226 Difference]: Without dead ends: 151325 [2022-01-18 03:13:03,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2022-01-18 03:13:03,801 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 565 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 03:13:03,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 1844 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 03:13:03,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151325 states. [2022-01-18 03:13:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151325 to 85323. [2022-01-18 03:13:07,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85323 states, 85322 states have (on average 4.826902791777033) internal successors, (411841), 85322 states have internal predecessors, (411841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:13:08,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85323 states to 85323 states and 411841 transitions. [2022-01-18 03:13:08,302 INFO L78 Accepts]: Start accepts. Automaton has 85323 states and 411841 transitions. Word has length 101 [2022-01-18 03:13:08,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:13:08,302 INFO L470 AbstractCegarLoop]: Abstraction has 85323 states and 411841 transitions. [2022-01-18 03:13:08,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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) [2022-01-18 03:13:08,302 INFO L276 IsEmpty]: Start isEmpty. Operand 85323 states and 411841 transitions. [2022-01-18 03:13:08,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:13:08,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:13:08,566 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] [2022-01-18 03:13:08,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 03:13:08,566 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)] === [2022-01-18 03:13:08,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:13:08,566 INFO L85 PathProgramCache]: Analyzing trace with hash 36120766, now seen corresponding path program 9 times [2022-01-18 03:13:08,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:13:08,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868797899] [2022-01-18 03:13:08,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:13:08,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:13:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:13:08,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:13:08,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:13:08,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868797899] [2022-01-18 03:13:08,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868797899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:13:08,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:13:08,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:13:08,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028336324] [2022-01-18 03:13:08,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:13:08,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:13:08,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:13:08,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:13:08,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:13:08,761 INFO L87 Difference]: Start difference. First operand 85323 states and 411841 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) [2022-01-18 03:13:11,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:13:11,144 INFO L93 Difference]: Finished difference Result 175095 states and 814572 transitions. [2022-01-18 03:13:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 03:13:11,145 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 101 [2022-01-18 03:13:11,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:13:12,666 INFO L225 Difference]: With dead ends: 175095 [2022-01-18 03:13:12,666 INFO L226 Difference]: Without dead ends: 173298 [2022-01-18 03:13:12,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-01-18 03:13:12,677 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 487 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 03:13:12,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 1035 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 03:13:12,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173298 states. [2022-01-18 03:13:16,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173298 to 87777. [2022-01-18 03:13:16,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87777 states, 87776 states have (on average 4.840776522056143) internal successors, (424904), 87776 states have internal predecessors, (424904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:13:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87777 states to 87777 states and 424904 transitions. [2022-01-18 03:13:16,626 INFO L78 Accepts]: Start accepts. Automaton has 87777 states and 424904 transitions. Word has length 101 [2022-01-18 03:13:16,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:13:16,626 INFO L470 AbstractCegarLoop]: Abstraction has 87777 states and 424904 transitions. [2022-01-18 03:13:16,626 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) [2022-01-18 03:13:16,626 INFO L276 IsEmpty]: Start isEmpty. Operand 87777 states and 424904 transitions. [2022-01-18 03:13:17,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:13:17,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:13:17,577 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] [2022-01-18 03:13:17,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 03:13:17,577 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)] === [2022-01-18 03:13:17,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:13:17,579 INFO L85 PathProgramCache]: Analyzing trace with hash 917690920, now seen corresponding path program 8 times [2022-01-18 03:13:17,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:13:17,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821432202] [2022-01-18 03:13:17,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:13:17,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:13:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:13:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:13:17,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:13:17,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821432202] [2022-01-18 03:13:17,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821432202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:13:17,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:13:17,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:13:17,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424730180] [2022-01-18 03:13:17,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:13:17,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:13:17,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:13:17,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:13:17,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:13:17,808 INFO L87 Difference]: Start difference. First operand 87777 states and 424904 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) [2022-01-18 03:13:20,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:13:20,186 INFO L93 Difference]: Finished difference Result 195705 states and 911727 transitions. [2022-01-18 03:13:20,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 03:13:20,187 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 101 [2022-01-18 03:13:20,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:13:21,292 INFO L225 Difference]: With dead ends: 195705 [2022-01-18 03:13:21,293 INFO L226 Difference]: Without dead ends: 193635 [2022-01-18 03:13:21,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-01-18 03:13:21,293 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 533 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:13:21,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 902 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:13:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193635 states. [2022-01-18 03:13:25,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193635 to 92563. [2022-01-18 03:13:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92563 states, 92562 states have (on average 4.871621183639074) internal successors, (450927), 92562 states have internal predecessors, (450927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:13:26,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92563 states to 92563 states and 450927 transitions. [2022-01-18 03:13:26,901 INFO L78 Accepts]: Start accepts. Automaton has 92563 states and 450927 transitions. Word has length 101 [2022-01-18 03:13:26,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:13:26,901 INFO L470 AbstractCegarLoop]: Abstraction has 92563 states and 450927 transitions. [2022-01-18 03:13:26,901 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) [2022-01-18 03:13:26,901 INFO L276 IsEmpty]: Start isEmpty. Operand 92563 states and 450927 transitions. [2022-01-18 03:13:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:13:27,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:13:27,411 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] [2022-01-18 03:13:27,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 03:13:27,411 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)] === [2022-01-18 03:13:27,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:13:27,411 INFO L85 PathProgramCache]: Analyzing trace with hash -959901590, now seen corresponding path program 9 times [2022-01-18 03:13:27,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:13:27,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784689000] [2022-01-18 03:13:27,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:13:27,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:13:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:13:27,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:13:27,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:13:27,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784689000] [2022-01-18 03:13:27,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784689000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:13:27,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:13:27,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:13:27,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514593004] [2022-01-18 03:13:27,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:13:27,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:13:27,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:13:27,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:13:27,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:13:27,584 INFO L87 Difference]: Start difference. First operand 92563 states and 450927 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) [2022-01-18 03:13:30,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:13:30,172 INFO L93 Difference]: Finished difference Result 197595 states and 930330 transitions. [2022-01-18 03:13:30,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 03:13:30,173 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 101 [2022-01-18 03:13:30,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:13:31,898 INFO L225 Difference]: With dead ends: 197595 [2022-01-18 03:13:31,898 INFO L226 Difference]: Without dead ends: 196077 [2022-01-18 03:13:31,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-01-18 03:13:31,899 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 415 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:13:31,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 1114 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:13:32,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196077 states. [2022-01-18 03:13:35,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196077 to 90233. [2022-01-18 03:13:35,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90233 states, 90232 states have (on average 4.874933504743328) internal successors, (439875), 90232 states have internal predecessors, (439875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:13:36,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90233 states to 90233 states and 439875 transitions. [2022-01-18 03:13:36,950 INFO L78 Accepts]: Start accepts. Automaton has 90233 states and 439875 transitions. Word has length 101 [2022-01-18 03:13:36,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:13:36,950 INFO L470 AbstractCegarLoop]: Abstraction has 90233 states and 439875 transitions. [2022-01-18 03:13:36,950 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) [2022-01-18 03:13:36,950 INFO L276 IsEmpty]: Start isEmpty. Operand 90233 states and 439875 transitions. [2022-01-18 03:13:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:13:37,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:13:37,336 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] [2022-01-18 03:13:37,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 03:13:37,336 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)] === [2022-01-18 03:13:37,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:13:37,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1927490498, now seen corresponding path program 10 times [2022-01-18 03:13:37,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:13:37,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845165353] [2022-01-18 03:13:37,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:13:37,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:13:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:13:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:13:37,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:13:37,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845165353] [2022-01-18 03:13:37,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845165353] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:13:37,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:13:37,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:13:37,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73949238] [2022-01-18 03:13:37,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:13:37,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:13:37,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:13:37,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:13:37,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:13:37,494 INFO L87 Difference]: Start difference. First operand 90233 states and 439875 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:13:39,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:13:39,737 INFO L93 Difference]: Finished difference Result 129107 states and 603619 transitions. [2022-01-18 03:13:39,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 03:13:39,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:13:39,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:13:41,102 INFO L225 Difference]: With dead ends: 129107 [2022-01-18 03:13:41,102 INFO L226 Difference]: Without dead ends: 128195 [2022-01-18 03:13:41,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 03:13:41,104 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 350 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:13:41,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 507 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:13:41,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128195 states. [2022-01-18 03:13:44,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128195 to 90143. [2022-01-18 03:13:44,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90143 states, 90142 states have (on average 4.875729404717002) internal successors, (439508), 90142 states have internal predecessors, (439508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:13:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90143 states to 90143 states and 439508 transitions. [2022-01-18 03:13:44,617 INFO L78 Accepts]: Start accepts. Automaton has 90143 states and 439508 transitions. Word has length 101 [2022-01-18 03:13:44,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:13:44,618 INFO L470 AbstractCegarLoop]: Abstraction has 90143 states and 439508 transitions. [2022-01-18 03:13:44,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:13:44,618 INFO L276 IsEmpty]: Start isEmpty. Operand 90143 states and 439508 transitions. [2022-01-18 03:13:45,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:13:45,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:13:45,594 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] [2022-01-18 03:13:45,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 03:13:45,595 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)] === [2022-01-18 03:13:45,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:13:45,595 INFO L85 PathProgramCache]: Analyzing trace with hash 660852210, now seen corresponding path program 11 times [2022-01-18 03:13:45,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:13:45,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598599972] [2022-01-18 03:13:45,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:13:45,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:13:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:13:45,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:13:45,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:13:45,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598599972] [2022-01-18 03:13:45,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598599972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:13:45,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:13:45,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:13:45,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866915819] [2022-01-18 03:13:45,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:13:45,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:13:45,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:13:45,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:13:45,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:13:45,818 INFO L87 Difference]: Start difference. First operand 90143 states and 439508 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) [2022-01-18 03:13:48,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:13:48,591 INFO L93 Difference]: Finished difference Result 207687 states and 960678 transitions. [2022-01-18 03:13:48,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 03:13:48,591 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 101 [2022-01-18 03:13:48,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:13:50,476 INFO L225 Difference]: With dead ends: 207687 [2022-01-18 03:13:50,476 INFO L226 Difference]: Without dead ends: 206211 [2022-01-18 03:13:50,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-01-18 03:13:50,476 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 667 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 03:13:50,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 1310 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 03:13:50,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206211 states. [2022-01-18 03:13:54,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206211 to 89898. [2022-01-18 03:13:54,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89898 states, 89897 states have (on average 4.873566414897049) internal successors, (438119), 89897 states have internal predecessors, (438119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:13:55,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89898 states to 89898 states and 438119 transitions. [2022-01-18 03:13:55,908 INFO L78 Accepts]: Start accepts. Automaton has 89898 states and 438119 transitions. Word has length 101 [2022-01-18 03:13:55,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:13:55,908 INFO L470 AbstractCegarLoop]: Abstraction has 89898 states and 438119 transitions. [2022-01-18 03:13:55,908 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) [2022-01-18 03:13:55,908 INFO L276 IsEmpty]: Start isEmpty. Operand 89898 states and 438119 transitions. [2022-01-18 03:13:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:13:56,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:13:56,219 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] [2022-01-18 03:13:56,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 03:13:56,220 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)] === [2022-01-18 03:13:56,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:13:56,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1830885146, now seen corresponding path program 11 times [2022-01-18 03:13:56,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:13:56,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490208493] [2022-01-18 03:13:56,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:13:56,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:13:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:13:56,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:13:56,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:13:56,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490208493] [2022-01-18 03:13:56,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490208493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:13:56,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:13:56,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 03:13:56,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924217178] [2022-01-18 03:13:56,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:13:56,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 03:13:56,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:13:56,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 03:13:56,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-01-18 03:13:56,446 INFO L87 Difference]: Start difference. First operand 89898 states and 438119 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 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) [2022-01-18 03:14:01,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:14:01,108 INFO L93 Difference]: Finished difference Result 211338 states and 982459 transitions. [2022-01-18 03:14:01,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 03:14:01,114 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 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 101 [2022-01-18 03:14:01,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:14:02,457 INFO L225 Difference]: With dead ends: 211338 [2022-01-18 03:14:02,457 INFO L226 Difference]: Without dead ends: 211323 [2022-01-18 03:14:02,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=355, Invalid=1285, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 03:14:02,458 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 599 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 03:14:02,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 2322 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 03:14:02,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211323 states. [2022-01-18 03:14:07,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211323 to 93421. [2022-01-18 03:14:07,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93421 states, 93420 states have (on average 4.879833012202955) internal successors, (455874), 93420 states have internal predecessors, (455874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:14:07,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93421 states to 93421 states and 455874 transitions. [2022-01-18 03:14:07,962 INFO L78 Accepts]: Start accepts. Automaton has 93421 states and 455874 transitions. Word has length 101 [2022-01-18 03:14:07,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:14:07,962 INFO L470 AbstractCegarLoop]: Abstraction has 93421 states and 455874 transitions. [2022-01-18 03:14:07,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 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) [2022-01-18 03:14:07,962 INFO L276 IsEmpty]: Start isEmpty. Operand 93421 states and 455874 transitions. [2022-01-18 03:14:08,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:14:08,230 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:14:08,230 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] [2022-01-18 03:14:08,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 03:14:08,231 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:14:08,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:14:08,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1950829904, now seen corresponding path program 12 times [2022-01-18 03:14:08,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:14:08,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854992405] [2022-01-18 03:14:08,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:14:08,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:14:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:14:08,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:14:08,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:14:08,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854992405] [2022-01-18 03:14:08,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854992405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:14:08,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:14:08,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:14:08,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651235770] [2022-01-18 03:14:08,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:14:08,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:14:08,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:14:08,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:14:08,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:14:08,435 INFO L87 Difference]: Start difference. First operand 93421 states and 455874 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) [2022-01-18 03:14:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:14:10,416 INFO L93 Difference]: Finished difference Result 128388 states and 609458 transitions. [2022-01-18 03:14:10,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 03:14:10,417 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 101 [2022-01-18 03:14:10,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:14:11,711 INFO L225 Difference]: With dead ends: 128388 [2022-01-18 03:14:11,711 INFO L226 Difference]: Without dead ends: 128316 [2022-01-18 03:14:11,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-01-18 03:14:11,711 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 427 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:14:11,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 785 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:14:11,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128316 states. [2022-01-18 03:14:14,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128316 to 93373. [2022-01-18 03:14:15,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93373 states, 93372 states have (on average 4.878528895172) internal successors, (455518), 93372 states have internal predecessors, (455518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:14:15,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93373 states to 93373 states and 455518 transitions. [2022-01-18 03:14:15,512 INFO L78 Accepts]: Start accepts. Automaton has 93373 states and 455518 transitions. Word has length 101 [2022-01-18 03:14:15,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:14:15,513 INFO L470 AbstractCegarLoop]: Abstraction has 93373 states and 455518 transitions. [2022-01-18 03:14:15,513 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) [2022-01-18 03:14:15,513 INFO L276 IsEmpty]: Start isEmpty. Operand 93373 states and 455518 transitions. [2022-01-18 03:14:15,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:14:15,772 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:14:15,773 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] [2022-01-18 03:14:15,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 03:14:15,773 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:14:15,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:14:15,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1948232730, now seen corresponding path program 12 times [2022-01-18 03:14:15,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:14:15,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537249545] [2022-01-18 03:14:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:14:15,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:14:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:14:15,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:14:15,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:14:15,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537249545] [2022-01-18 03:14:15,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537249545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:14:15,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:14:15,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:14:15,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359291681] [2022-01-18 03:14:15,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:14:15,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:14:15,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:14:15,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:14:15,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:14:15,895 INFO L87 Difference]: Start difference. First operand 93373 states and 455518 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:14:17,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:14:17,875 INFO L93 Difference]: Finished difference Result 145292 states and 685362 transitions. [2022-01-18 03:14:17,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 03:14:17,876 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:14:17,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:14:19,301 INFO L225 Difference]: With dead ends: 145292 [2022-01-18 03:14:19,301 INFO L226 Difference]: Without dead ends: 141674 [2022-01-18 03:14:19,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-01-18 03:14:19,302 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 466 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:14:19,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 852 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:14:19,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141674 states. [2022-01-18 03:14:22,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141674 to 90671. [2022-01-18 03:14:22,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90671 states, 90670 states have (on average 4.858453733318628) internal successors, (440516), 90670 states have internal predecessors, (440516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:14:23,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90671 states to 90671 states and 440516 transitions. [2022-01-18 03:14:23,272 INFO L78 Accepts]: Start accepts. Automaton has 90671 states and 440516 transitions. Word has length 101 [2022-01-18 03:14:23,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:14:23,272 INFO L470 AbstractCegarLoop]: Abstraction has 90671 states and 440516 transitions. [2022-01-18 03:14:23,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:14:23,272 INFO L276 IsEmpty]: Start isEmpty. Operand 90671 states and 440516 transitions. [2022-01-18 03:14:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:14:24,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:14:24,374 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] [2022-01-18 03:14:24,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 03:14:24,374 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:14:24,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:14:24,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1859933654, now seen corresponding path program 13 times [2022-01-18 03:14:24,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:14:24,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986113523] [2022-01-18 03:14:24,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:14:24,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:14:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:14:24,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:14:24,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:14:24,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986113523] [2022-01-18 03:14:24,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986113523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:14:24,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:14:24,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 03:14:24,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668970871] [2022-01-18 03:14:24,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:14:24,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 03:14:24,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:14:24,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 03:14:24,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-18 03:14:24,668 INFO L87 Difference]: Start difference. First operand 90671 states and 440516 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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) [2022-01-18 03:14:26,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:14:26,822 INFO L93 Difference]: Finished difference Result 129747 states and 611019 transitions. [2022-01-18 03:14:26,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 03:14:26,823 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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 101 [2022-01-18 03:14:26,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:14:27,556 INFO L225 Difference]: With dead ends: 129747 [2022-01-18 03:14:27,556 INFO L226 Difference]: Without dead ends: 129306 [2022-01-18 03:14:27,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2022-01-18 03:14:27,557 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 508 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 03:14:27,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [508 Valid, 1708 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 03:14:27,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129306 states. [2022-01-18 03:14:30,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129306 to 90057. [2022-01-18 03:14:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90057 states, 90056 states have (on average 4.853324598027894) internal successors, (437071), 90056 states have internal predecessors, (437071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:14:31,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90057 states to 90057 states and 437071 transitions. [2022-01-18 03:14:31,294 INFO L78 Accepts]: Start accepts. Automaton has 90057 states and 437071 transitions. Word has length 101 [2022-01-18 03:14:31,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:14:31,295 INFO L470 AbstractCegarLoop]: Abstraction has 90057 states and 437071 transitions. [2022-01-18 03:14:31,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 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) [2022-01-18 03:14:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 90057 states and 437071 transitions. [2022-01-18 03:14:32,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:14:32,321 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:14:32,321 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] [2022-01-18 03:14:32,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 03:14:32,322 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:14:32,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:14:32,322 INFO L85 PathProgramCache]: Analyzing trace with hash 157582780, now seen corresponding path program 10 times [2022-01-18 03:14:32,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:14:32,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777118059] [2022-01-18 03:14:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:14:32,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:14:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:14:32,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:14:32,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:14:32,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777118059] [2022-01-18 03:14:32,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777118059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:14:32,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:14:32,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:14:32,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689232879] [2022-01-18 03:14:32,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:14:32,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:14:32,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:14:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:14:32,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:14:32,476 INFO L87 Difference]: Start difference. First operand 90057 states and 437071 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) [2022-01-18 03:14:35,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:14:35,337 INFO L93 Difference]: Finished difference Result 237137 states and 1083806 transitions. [2022-01-18 03:14:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 03:14:35,337 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 101 [2022-01-18 03:14:35,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:14:37,464 INFO L225 Difference]: With dead ends: 237137 [2022-01-18 03:14:37,465 INFO L226 Difference]: Without dead ends: 235823 [2022-01-18 03:14:37,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-01-18 03:14:37,465 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 707 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 03:14:37,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [707 Valid, 1207 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 03:14:37,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235823 states. [2022-01-18 03:14:42,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235823 to 89789. [2022-01-18 03:14:42,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89789 states, 89788 states have (on average 4.850603644139529) internal successors, (435526), 89788 states have internal predecessors, (435526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:14:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89789 states to 89789 states and 435526 transitions. [2022-01-18 03:14:43,119 INFO L78 Accepts]: Start accepts. Automaton has 89789 states and 435526 transitions. Word has length 101 [2022-01-18 03:14:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:14:43,119 INFO L470 AbstractCegarLoop]: Abstraction has 89789 states and 435526 transitions. [2022-01-18 03:14:43,119 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) [2022-01-18 03:14:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 89789 states and 435526 transitions. [2022-01-18 03:14:43,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:14:43,372 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:14:43,372 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] [2022-01-18 03:14:43,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 03:14:43,372 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:14:43,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:14:43,372 INFO L85 PathProgramCache]: Analyzing trace with hash -419595236, now seen corresponding path program 14 times [2022-01-18 03:14:43,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:14:43,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783084485] [2022-01-18 03:14:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:14:43,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:14:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:14:44,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:14:44,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:14:44,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783084485] [2022-01-18 03:14:44,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783084485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:14:44,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:14:44,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:14:44,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254761043] [2022-01-18 03:14:44,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:14:44,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:14:44,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:14:44,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:14:44,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:14:44,156 INFO L87 Difference]: Start difference. First operand 89789 states and 435526 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:14:45,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:14:45,288 INFO L93 Difference]: Finished difference Result 124653 states and 587620 transitions. [2022-01-18 03:14:45,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 03:14:45,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:14:45,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:14:47,260 INFO L225 Difference]: With dead ends: 124653 [2022-01-18 03:14:47,260 INFO L226 Difference]: Without dead ends: 124575 [2022-01-18 03:14:47,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 03:14:47,261 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 259 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:14:47,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 648 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:14:47,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124575 states. [2022-01-18 03:14:50,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124575 to 89573. [2022-01-18 03:14:50,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89573 states, 89572 states have (on average 4.850589469923637) internal successors, (434477), 89572 states have internal predecessors, (434477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:14:51,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89573 states to 89573 states and 434477 transitions. [2022-01-18 03:14:51,428 INFO L78 Accepts]: Start accepts. Automaton has 89573 states and 434477 transitions. Word has length 101 [2022-01-18 03:14:51,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:14:51,428 INFO L470 AbstractCegarLoop]: Abstraction has 89573 states and 434477 transitions. [2022-01-18 03:14:51,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:14:51,428 INFO L276 IsEmpty]: Start isEmpty. Operand 89573 states and 434477 transitions. [2022-01-18 03:14:51,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:14:51,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:14:51,677 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] [2022-01-18 03:14:51,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 03:14:51,677 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:14:51,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:14:51,677 INFO L85 PathProgramCache]: Analyzing trace with hash -352338302, now seen corresponding path program 11 times [2022-01-18 03:14:51,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:14:51,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031589398] [2022-01-18 03:14:51,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:14:51,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:14:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:14:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:14:51,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:14:51,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031589398] [2022-01-18 03:14:51,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031589398] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:14:51,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:14:51,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:14:51,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193660642] [2022-01-18 03:14:51,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:14:51,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:14:51,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:14:51,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:14:51,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:14:51,787 INFO L87 Difference]: Start difference. First operand 89573 states and 434477 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) [2022-01-18 03:14:53,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:14:53,747 INFO L93 Difference]: Finished difference Result 127775 states and 604463 transitions. [2022-01-18 03:14:53,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 03:14:53,747 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 101 [2022-01-18 03:14:53,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:14:54,369 INFO L225 Difference]: With dead ends: 127775 [2022-01-18 03:14:54,369 INFO L226 Difference]: Without dead ends: 125132 [2022-01-18 03:14:54,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-01-18 03:14:54,370 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 453 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:14:54,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 858 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:14:55,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125132 states. [2022-01-18 03:14:57,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125132 to 82725. [2022-01-18 03:14:57,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82725 states, 82724 states have (on average 4.84234321357768) internal successors, (400578), 82724 states have internal predecessors, (400578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:14:58,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82725 states to 82725 states and 400578 transitions. [2022-01-18 03:14:58,420 INFO L78 Accepts]: Start accepts. Automaton has 82725 states and 400578 transitions. Word has length 101 [2022-01-18 03:14:58,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:14:58,420 INFO L470 AbstractCegarLoop]: Abstraction has 82725 states and 400578 transitions. [2022-01-18 03:14:58,420 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) [2022-01-18 03:14:58,421 INFO L276 IsEmpty]: Start isEmpty. Operand 82725 states and 400578 transitions. [2022-01-18 03:14:58,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:14:58,687 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:14:58,687 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] [2022-01-18 03:14:58,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 03:14:58,688 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:14:58,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:14:58,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1860075722, now seen corresponding path program 15 times [2022-01-18 03:14:58,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:14:58,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497346483] [2022-01-18 03:14:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:14:58,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:14:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:14:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:14:58,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:14:58,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497346483] [2022-01-18 03:14:58,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497346483] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:14:58,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:14:58,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:14:58,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844010450] [2022-01-18 03:14:58,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:14:58,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:14:58,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:14:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:14:58,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:14:58,847 INFO L87 Difference]: Start difference. First operand 82725 states and 400578 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:15:00,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:15:00,785 INFO L93 Difference]: Finished difference Result 130747 states and 614183 transitions. [2022-01-18 03:15:00,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 03:15:00,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:15:00,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:15:01,551 INFO L225 Difference]: With dead ends: 130747 [2022-01-18 03:15:01,551 INFO L226 Difference]: Without dead ends: 130024 [2022-01-18 03:15:01,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-18 03:15:01,552 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 338 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 03:15:01,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 747 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 03:15:01,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130024 states. [2022-01-18 03:15:04,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130024 to 81225. [2022-01-18 03:15:04,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81225 states, 81224 states have (on average 4.831564562198365) internal successors, (392439), 81224 states have internal predecessors, (392439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:15:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81225 states to 81225 states and 392439 transitions. [2022-01-18 03:15:05,104 INFO L78 Accepts]: Start accepts. Automaton has 81225 states and 392439 transitions. Word has length 101 [2022-01-18 03:15:05,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:15:05,105 INFO L470 AbstractCegarLoop]: Abstraction has 81225 states and 392439 transitions. [2022-01-18 03:15:05,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:15:05,105 INFO L276 IsEmpty]: Start isEmpty. Operand 81225 states and 392439 transitions. [2022-01-18 03:15:06,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:15:06,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:15:06,025 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] [2022-01-18 03:15:06,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 03:15:06,025 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:15:06,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:15:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1925832130, now seen corresponding path program 16 times [2022-01-18 03:15:06,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:15:06,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826601153] [2022-01-18 03:15:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:15:06,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:15:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:15:06,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:15:06,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:15:06,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826601153] [2022-01-18 03:15:06,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826601153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:15:06,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:15:06,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:15:06,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636987030] [2022-01-18 03:15:06,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:15:06,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:15:06,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:15:06,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:15:06,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:15:06,261 INFO L87 Difference]: Start difference. First operand 81225 states and 392439 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) [2022-01-18 03:15:08,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:15:08,993 INFO L93 Difference]: Finished difference Result 185660 states and 863743 transitions. [2022-01-18 03:15:08,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 03:15:08,994 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 101 [2022-01-18 03:15:08,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:15:10,041 INFO L225 Difference]: With dead ends: 185660 [2022-01-18 03:15:10,042 INFO L226 Difference]: Without dead ends: 183536 [2022-01-18 03:15:10,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-01-18 03:15:10,042 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 589 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 03:15:10,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 1192 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 03:15:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183536 states. [2022-01-18 03:15:14,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183536 to 80901. [2022-01-18 03:15:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80901 states, 80900 states have (on average 4.828430160692212) internal successors, (390620), 80900 states have internal predecessors, (390620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:15:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80901 states to 80901 states and 390620 transitions. [2022-01-18 03:15:14,797 INFO L78 Accepts]: Start accepts. Automaton has 80901 states and 390620 transitions. Word has length 101 [2022-01-18 03:15:14,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:15:14,797 INFO L470 AbstractCegarLoop]: Abstraction has 80901 states and 390620 transitions. [2022-01-18 03:15:14,798 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) [2022-01-18 03:15:14,798 INFO L276 IsEmpty]: Start isEmpty. Operand 80901 states and 390620 transitions. [2022-01-18 03:15:15,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:15:15,023 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:15:15,023 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] [2022-01-18 03:15:15,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 03:15:15,023 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:15:15,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:15:15,023 INFO L85 PathProgramCache]: Analyzing trace with hash -479684052, now seen corresponding path program 17 times [2022-01-18 03:15:15,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:15:15,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620028772] [2022-01-18 03:15:15,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:15:15,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:15:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:15:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:15:15,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:15:15,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620028772] [2022-01-18 03:15:15,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620028772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:15:15,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:15:15,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 03:15:15,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163059050] [2022-01-18 03:15:15,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:15:15,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 03:15:15,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:15:15,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 03:15:15,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 03:15:15,179 INFO L87 Difference]: Start difference. First operand 80901 states and 390620 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) [2022-01-18 03:15:16,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:15:16,878 INFO L93 Difference]: Finished difference Result 113011 states and 534037 transitions. [2022-01-18 03:15:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 03:15:16,878 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 101 [2022-01-18 03:15:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:15:18,042 INFO L225 Difference]: With dead ends: 113011 [2022-01-18 03:15:18,042 INFO L226 Difference]: Without dead ends: 112867 [2022-01-18 03:15:18,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-01-18 03:15:18,043 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 461 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 03:15:18,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 645 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 03:15:18,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112867 states. [2022-01-18 03:15:20,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112867 to 81741. [2022-01-18 03:15:20,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81741 states, 81740 states have (on average 4.825813555174945) internal successors, (394462), 81740 states have internal predecessors, (394462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:15:21,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81741 states to 81741 states and 394462 transitions. [2022-01-18 03:15:21,519 INFO L78 Accepts]: Start accepts. Automaton has 81741 states and 394462 transitions. Word has length 101 [2022-01-18 03:15:21,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:15:21,519 INFO L470 AbstractCegarLoop]: Abstraction has 81741 states and 394462 transitions. [2022-01-18 03:15:21,520 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) [2022-01-18 03:15:21,520 INFO L276 IsEmpty]: Start isEmpty. Operand 81741 states and 394462 transitions. [2022-01-18 03:15:21,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-18 03:15:21,771 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:15:21,772 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] [2022-01-18 03:15:21,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 03:15:21,772 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:15:21,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:15:21,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1443693090, now seen corresponding path program 18 times [2022-01-18 03:15:21,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:15:21,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930123417] [2022-01-18 03:15:21,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:15:21,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:15:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:15:21,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:15:21,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:15:21,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930123417] [2022-01-18 03:15:21,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930123417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:15:21,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:15:21,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 03:15:21,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535236641] [2022-01-18 03:15:21,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:15:21,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 03:15:21,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:15:21,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 03:15:21,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 03:15:21,876 INFO L87 Difference]: Start difference. First operand 81741 states and 394462 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:15:23,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:15:23,550 INFO L93 Difference]: Finished difference Result 97773 states and 467140 transitions. [2022-01-18 03:15:23,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 03:15:23,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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 101 [2022-01-18 03:15:23,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:15:24,045 INFO L225 Difference]: With dead ends: 97773 [2022-01-18 03:15:24,046 INFO L226 Difference]: Without dead ends: 95325 [2022-01-18 03:15:24,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-01-18 03:15:24,046 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 208 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 03:15:24,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 489 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 03:15:24,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95325 states. [2022-01-18 03:15:26,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95325 to 78041. [2022-01-18 03:15:26,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78041 states, 78040 states have (on average 4.8091747821629935) internal successors, (375308), 78040 states have internal predecessors, (375308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:15:27,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78041 states to 78041 states and 375308 transitions. [2022-01-18 03:15:27,314 INFO L78 Accepts]: Start accepts. Automaton has 78041 states and 375308 transitions. Word has length 101 [2022-01-18 03:15:27,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:15:27,314 INFO L470 AbstractCegarLoop]: Abstraction has 78041 states and 375308 transitions. [2022-01-18 03:15:27,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2022-01-18 03:15:27,314 INFO L276 IsEmpty]: Start isEmpty. Operand 78041 states and 375308 transitions. [2022-01-18 03:15:27,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-18 03:15:27,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:15:27,533 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, 1, 1, 1] [2022-01-18 03:15:27,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 03:15:27,533 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:15:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:15:27,534 INFO L85 PathProgramCache]: Analyzing trace with hash -2016603415, now seen corresponding path program 1 times [2022-01-18 03:15:27,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:15:27,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456264254] [2022-01-18 03:15:27,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:15:27,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:15:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:15:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:15:27,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:15:27,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456264254] [2022-01-18 03:15:27,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456264254] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:15:27,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149275548] [2022-01-18 03:15:27,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:15:27,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:15:27,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:15:27,781 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) [2022-01-18 03:15:27,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 03:15:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:15:28,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-18 03:15:28,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:15:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:15:35,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:15:36,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:15:36,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149275548] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 03:15:36,771 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 03:15:36,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 28 [2022-01-18 03:15:36,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130149203] [2022-01-18 03:15:36,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 03:15:36,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-18 03:15:36,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:15:36,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-18 03:15:36,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=616, Unknown=1, NotChecked=0, Total=756 [2022-01-18 03:15:36,773 INFO L87 Difference]: Start difference. First operand 78041 states and 375308 transitions. Second operand has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:15:42,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-18 03:15:50,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:15:50,234 INFO L93 Difference]: Finished difference Result 422315 states and 1933023 transitions. [2022-01-18 03:15:50,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-01-18 03:15:50,234 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 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 104 [2022-01-18 03:15:50,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:15:53,541 INFO L225 Difference]: With dead ends: 422315 [2022-01-18 03:15:53,541 INFO L226 Difference]: Without dead ends: 396053 [2022-01-18 03:15:53,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 194 SyntacticMatches, 3 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2467 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=1792, Invalid=6217, Unknown=1, NotChecked=0, Total=8010 [2022-01-18 03:15:53,542 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 2028 mSDsluCounter, 5832 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 5603 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 241 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-01-18 03:15:53,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2028 Valid, 5603 Invalid, 2495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2193 Invalid, 0 Unknown, 241 Unchecked, 5.0s Time] [2022-01-18 03:15:54,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396053 states. [2022-01-18 03:16:02,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396053 to 105008. [2022-01-18 03:16:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105008 states, 105007 states have (on average 4.808184216290343) internal successors, (504893), 105007 states have internal predecessors, (504893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:16:03,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105008 states to 105008 states and 504893 transitions. [2022-01-18 03:16:03,065 INFO L78 Accepts]: Start accepts. Automaton has 105008 states and 504893 transitions. Word has length 104 [2022-01-18 03:16:03,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:16:03,066 INFO L470 AbstractCegarLoop]: Abstraction has 105008 states and 504893 transitions. [2022-01-18 03:16:03,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:16:03,066 INFO L276 IsEmpty]: Start isEmpty. Operand 105008 states and 504893 transitions. [2022-01-18 03:16:03,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-18 03:16:03,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:16:03,377 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, 1, 1, 1] [2022-01-18 03:16:03,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 03:16:03,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:16:03,582 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:16:03,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:16:03,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1476725079, now seen corresponding path program 1 times [2022-01-18 03:16:03,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:16:03,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020098120] [2022-01-18 03:16:03,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:16:03,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:16:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:16:03,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:16:03,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:16:03,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020098120] [2022-01-18 03:16:03,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020098120] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:16:03,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759069049] [2022-01-18 03:16:03,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:16:03,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:16:03,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:16:03,763 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) [2022-01-18 03:16:03,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 03:16:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:16:03,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-18 03:16:03,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:16:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:16:04,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:16:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:16:05,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759069049] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 03:16:05,532 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 03:16:05,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 27 [2022-01-18 03:16:05,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768144097] [2022-01-18 03:16:05,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 03:16:05,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-18 03:16:05,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:16:05,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-18 03:16:05,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2022-01-18 03:16:05,534 INFO L87 Difference]: Start difference. First operand 105008 states and 504893 transitions. Second operand has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:16:34,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:16:34,924 INFO L93 Difference]: Finished difference Result 739303 states and 3358250 transitions. [2022-01-18 03:16:34,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 429 states. [2022-01-18 03:16:34,925 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 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 104 [2022-01-18 03:16:34,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:16:41,297 INFO L225 Difference]: With dead ends: 739303 [2022-01-18 03:16:41,297 INFO L226 Difference]: Without dead ends: 722254 [2022-01-18 03:16:41,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 191 SyntacticMatches, 5 SemanticMatches, 439 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88925 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=25164, Invalid=168876, Unknown=0, NotChecked=0, Total=194040 [2022-01-18 03:16:41,309 INFO L933 BasicCegarLoop]: 819 mSDtfsCounter, 5292 mSDsluCounter, 10708 mSDsCounter, 0 mSdLazyCounter, 5737 mSolverCounterSat, 700 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5292 SdHoareTripleChecker+Valid, 10437 SdHoareTripleChecker+Invalid, 6437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 700 IncrementalHoareTripleChecker+Valid, 5737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-01-18 03:16:41,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5292 Valid, 10437 Invalid, 6437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [700 Valid, 5737 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-18 03:16:43,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722254 states. [2022-01-18 03:17:00,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722254 to 159373. [2022-01-18 03:17:00,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159373 states, 159372 states have (on average 4.86358331450945) internal successors, (775119), 159372 states have internal predecessors, (775119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:17:02,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159373 states to 159373 states and 775119 transitions. [2022-01-18 03:17:02,562 INFO L78 Accepts]: Start accepts. Automaton has 159373 states and 775119 transitions. Word has length 104 [2022-01-18 03:17:02,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:17:02,562 INFO L470 AbstractCegarLoop]: Abstraction has 159373 states and 775119 transitions. [2022-01-18 03:17:02,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:17:02,562 INFO L276 IsEmpty]: Start isEmpty. Operand 159373 states and 775119 transitions. [2022-01-18 03:17:03,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-18 03:17:03,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:17:03,114 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, 1, 1, 1] [2022-01-18 03:17:03,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 03:17:03,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:17:03,315 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 03:17:03,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:17:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash -561403401, now seen corresponding path program 2 times [2022-01-18 03:17:03,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:17:03,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560595358] [2022-01-18 03:17:03,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:17:03,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:17:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:17:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:17:03,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:17:03,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560595358] [2022-01-18 03:17:03,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560595358] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:17:03,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81859982] [2022-01-18 03:17:03,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 03:17:03,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:17:03,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:17:03,589 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) [2022-01-18 03:17:03,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 03:17:03,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 03:17:03,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 03:17:03,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 21 conjunts are in the unsatisfiable core [2022-01-18 03:17:03,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:17:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:17:04,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:17:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:17:05,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81859982] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 03:17:05,002 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 03:17:05,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 38 [2022-01-18 03:17:05,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682265609] [2022-01-18 03:17:05,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 03:17:05,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-01-18 03:17:05,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:17:05,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-01-18 03:17:05,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 03:17:05,007 INFO L87 Difference]: Start difference. First operand 159373 states and 775119 transitions. Second operand has 38 states, 38 states have (on average 5.368421052631579) internal successors, (204), 38 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 03:20:29,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2049 states. [2022-01-18 03:20:29,250 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 03:20:29,263 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 03:20:29,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2249 GetRequests, 185 SyntacticMatches, 2 SemanticMatches, 2062 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2171420 ImplicationChecksByTransitivity, 153.1s TimeCoverageRelationStatistics Valid=347383, Invalid=3910649, Unknown=0, NotChecked=0, Total=4258032 [2022-01-18 03:20:29,696 INFO L933 BasicCegarLoop]: 1282 mSDtfsCounter, 12853 mSDsluCounter, 24417 mSDsCounter, 0 mSdLazyCounter, 19931 mSolverCounterSat, 2492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12853 SdHoareTripleChecker+Valid, 23426 SdHoareTripleChecker+Invalid, 22423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2492 IncrementalHoareTripleChecker+Valid, 19931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-01-18 03:20:29,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12853 Valid, 23426 Invalid, 22423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2492 Valid, 19931 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-01-18 03:20:29,697 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 03:20:29,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 03:20:29,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:20:29,912 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (1950842 states constructed, input type IntersectNwa). [2022-01-18 03:20:29,914 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 03:20:29,914 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 03:20:29,914 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 03:20:29,914 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 03:20:29,916 INFO L732 BasicCegarLoop]: Path program histogram: [18, 12, 11, 7, 2, 1, 1, 1] [2022-01-18 03:20:29,918 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 03:20:29,918 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 03:20:29,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 03:20:29 BasicIcfg [2022-01-18 03:20:29,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 03:20:29,926 INFO L158 Benchmark]: Toolchain (without parser) took 621708.74ms. Allocated memory was 402.7MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 349.2MB in the beginning and 7.3GB in the end (delta: -7.0GB). Peak memory consumption was 8.6GB. Max. memory is 16.0GB. [2022-01-18 03:20:29,926 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 402.7MB. Free memory is still 365.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:20:29,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.47ms. Allocated memory is still 402.7MB. Free memory was 348.9MB in the beginning and 374.5MB in the end (delta: -25.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.0GB. [2022-01-18 03:20:29,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.46ms. Allocated memory is still 402.7MB. Free memory was 374.5MB in the beginning and 372.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 03:20:29,927 INFO L158 Benchmark]: Boogie Preprocessor took 22.46ms. Allocated memory is still 402.7MB. Free memory was 372.9MB in the beginning and 371.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:20:29,927 INFO L158 Benchmark]: RCFGBuilder took 426.97ms. Allocated memory is still 402.7MB. Free memory was 371.4MB in the beginning and 354.7MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-18 03:20:29,927 INFO L158 Benchmark]: TraceAbstraction took 620961.03ms. Allocated memory was 402.7MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 354.0MB in the beginning and 7.3GB in the end (delta: -7.0GB). Peak memory consumption was 8.6GB. Max. memory is 16.0GB. [2022-01-18 03:20:29,928 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 402.7MB. Free memory is still 365.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 255.47ms. Allocated memory is still 402.7MB. Free memory was 348.9MB in the beginning and 374.5MB in the end (delta: -25.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.46ms. Allocated memory is still 402.7MB. Free memory was 374.5MB in the beginning and 372.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.46ms. Allocated memory is still 402.7MB. Free memory was 372.9MB in the beginning and 371.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 426.97ms. Allocated memory is still 402.7MB. Free memory was 371.4MB in the beginning and 354.7MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 620961.03ms. Allocated memory was 402.7MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 354.0MB in the beginning and 7.3GB in the end (delta: -7.0GB). Peak memory consumption was 8.6GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (1950842 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (1950842 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 131]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (1950842 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (1950842 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (159373states) and FLOYD_HOARE automaton (currently 2049 states, 38 states before enhancement),while ReachableStatesComputation was computing reachable states (1950842 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 158 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 620.9s, OverallIterations: 53, TraceHistogramMax: 1, PathProgramHistogramMax: 18, EmptinessCheckTime: 17.3s, AutomataDifference: 385.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37490 SdHoareTripleChecker+Valid, 30.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37490 mSDsluCounter, 78498 SdHoareTripleChecker+Invalid, 26.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 241 IncrementalHoareTripleChecker+Unchecked, 74288 mSDsCounter, 4220 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43606 IncrementalHoareTripleChecker+Invalid, 48067 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4220 mSolverCounterUnsat, 11462 mSDtfsCounter, 43606 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4669 GetRequests, 1475 SyntacticMatches, 19 SemanticMatches, 3175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2264132 ImplicationChecksByTransitivity, 187.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159373occurred in iteration=52, InterpolantAutomatonStates: 1041, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 187.9s AutomataMinimizationTime, 52 MinimizatonAttempts, 3229429 StatesRemovedByMinimization, 51 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 24.1s InterpolantComputationTime, 6072 NumberOfCodeBlocks, 6072 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 6721 ConstructedInterpolants, 9 QuantifiedInterpolants, 40518 SizeOfPredicates, 84 NumberOfNonLiveVariables, 1888 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 67 InterpolantComputations, 50 PerfectInterpolantSequences, 54/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2022-01-18 03:20:29,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 !SESSION 2022-01-18 03:10:04.980 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.12 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -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/test-hard1.wvr.c Command-line arguments: -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/test-hard1.wvr.c !ENTRY org.eclipse.osgi 4 0 2022-01-18 03:20:30.185 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f197f43/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88f197f43/.metadata/.log.