/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/parallel-bakery-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 01:20:53,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 01:20:53,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 01:20:53,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 01:20:53,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 01:20:53,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 01:20:53,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 01:20:53,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 01:20:53,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 01:20:53,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 01:20:53,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 01:20:53,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 01:20:53,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 01:20:53,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 01:20:53,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 01:20:53,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 01:20:53,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 01:20:53,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 01:20:53,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 01:20:53,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 01:20:53,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 01:20:53,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 01:20:53,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 01:20:53,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 01:20:53,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 01:20:53,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-18 01:20:53,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-18 01:20:53,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-18 01:20:53,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-18 01:20:53,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-18 01:20:53,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-18 01:20:53,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-18 01:20:53,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-18 01:20:53,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 01:20:53,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 01:20:53,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 01:20:53,164 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 01:20:53,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 01:20:53,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 01:20:53,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 01:20:53,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 01:20:53,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 01:20:53,193 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 01:20:53,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 01:20:53,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 01:20:53,194 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 01:20:53,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 01:20:53,195 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 01:20:53,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 01:20:53,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 01:20:53,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 01:20:53,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 01:20:53,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 01:20:53,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 01:20:53,196 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 01:20:53,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 01:20:53,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 01:20:53,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 01:20:53,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 01:20:53,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 01:20:53,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 01:20:53,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 01:20:53,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:20:53,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 01:20:53,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 01:20:53,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 01:20:53,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 01:20:53,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 01:20:53,197 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 01:20:53,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 01:20:53,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 01:20:53,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 01:20:53,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 01:20:53,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 01:20:53,435 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 01:20:53,436 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 01:20:53,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-01-18 01:20:53,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f98ed62/62812ede4f3747cb8d9c4a65bb364f93/FLAG89aaca981 [2022-01-18 01:20:53,903 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 01:20:53,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-3.wvr.c [2022-01-18 01:20:53,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f98ed62/62812ede4f3747cb8d9c4a65bb364f93/FLAG89aaca981 [2022-01-18 01:20:53,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f98ed62/62812ede4f3747cb8d9c4a65bb364f93 [2022-01-18 01:20:53,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 01:20:53,922 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 01:20:53,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 01:20:53,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 01:20:53,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 01:20:53,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:20:53" (1/1) ... [2022-01-18 01:20:53,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5113c328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:53, skipping insertion in model container [2022-01-18 01:20:53,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 01:20:53" (1/1) ... [2022-01-18 01:20:53,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 01:20:53,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 01:20:54,190 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/parallel-bakery-3.wvr.c[5426,5439] [2022-01-18 01:20:54,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:20:54,199 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 01:20:54,253 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/parallel-bakery-3.wvr.c[5426,5439] [2022-01-18 01:20:54,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 01:20:54,274 INFO L208 MainTranslator]: Completed translation [2022-01-18 01:20:54,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54 WrapperNode [2022-01-18 01:20:54,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 01:20:54,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 01:20:54,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 01:20:54,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 01:20:54,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (1/1) ... [2022-01-18 01:20:54,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (1/1) ... [2022-01-18 01:20:54,337 INFO L137 Inliner]: procedures = 22, calls = 110, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 279 [2022-01-18 01:20:54,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 01:20:54,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 01:20:54,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 01:20:54,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 01:20:54,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (1/1) ... [2022-01-18 01:20:54,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (1/1) ... [2022-01-18 01:20:54,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (1/1) ... [2022-01-18 01:20:54,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (1/1) ... [2022-01-18 01:20:54,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (1/1) ... [2022-01-18 01:20:54,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (1/1) ... [2022-01-18 01:20:54,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (1/1) ... [2022-01-18 01:20:54,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 01:20:54,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 01:20:54,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 01:20:54,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 01:20:54,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (1/1) ... [2022-01-18 01:20:54,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 01:20:54,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 01:20:54,412 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 01:20:54,434 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 01:20:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 01:20:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 01:20:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 01:20:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 01:20:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 01:20:54,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 01:20:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 01:20:54,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 01:20:54,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 01:20:54,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 01:20:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 01:20:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 01:20:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 01:20:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 01:20:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 01:20:54,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 01:20:54,456 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 01:20:54,554 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 01:20:54,556 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 01:20:54,840 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 01:20:54,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 01:20:54,953 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 01:20:54,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:20:54 BoogieIcfgContainer [2022-01-18 01:20:54,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 01:20:54,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 01:20:54,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 01:20:54,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 01:20:54,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 01:20:53" (1/3) ... [2022-01-18 01:20:54,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c199d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:20:54, skipping insertion in model container [2022-01-18 01:20:54,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 01:20:54" (2/3) ... [2022-01-18 01:20:54,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c199d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 01:20:54, skipping insertion in model container [2022-01-18 01:20:54,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 01:20:54" (3/3) ... [2022-01-18 01:20:54,968 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2022-01-18 01:20:54,972 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 01:20:54,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 01:20:54,972 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 01:20:54,972 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 01:20:55,013 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,013 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,014 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,014 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,014 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,014 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,015 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,015 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,015 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,015 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,016 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,016 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,016 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,016 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,016 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,017 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,017 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,017 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,017 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,018 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,018 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,018 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,018 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,018 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,019 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,019 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,019 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,020 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,021 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,022 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,023 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,024 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,025 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,026 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,027 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,030 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,034 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,036 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,037 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 01:20:55,042 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 01:20:55,073 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 01:20:55,078 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 01:20:55,079 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 01:20:55,089 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 160 places, 152 transitions, 328 flow [2022-01-18 01:20:55,616 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 0 states have call successors, (0), 0 states 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 01:20:55,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 0 states have call successors, (0), 0 states 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 01:20:55,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:20:55,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:20:55,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:20:55,761 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:20:55,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:20:55,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1965078490, now seen corresponding path program 1 times [2022-01-18 01:20:55,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:20:55,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857148953] [2022-01-18 01:20:55,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:20:55,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:20:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:20:56,234 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 01:20:56,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:20:56,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857148953] [2022-01-18 01:20:56,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857148953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:20:56,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:20:56,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:20:56,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831744709] [2022-01-18 01:20:56,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:20:56,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:20:56,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:20:56,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:20:56,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:20:56,314 INFO L87 Difference]: Start difference. First operand has 15733 states, 15732 states have (on average 3.4366895499618613) internal successors, (54066), 15732 states have internal predecessors, (54066), 0 states have call successors, (0), 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 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:20:56,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:20:56,702 INFO L93 Difference]: Finished difference Result 15733 states and 53560 transitions. [2022-01-18 01:20:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:20:56,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:20:56,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:20:56,928 INFO L225 Difference]: With dead ends: 15733 [2022-01-18 01:20:56,928 INFO L226 Difference]: Without dead ends: 15731 [2022-01-18 01:20:56,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:20:56,933 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 31 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:20:56,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 240 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:20:56,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15731 states. [2022-01-18 01:20:57,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15731 to 15731. [2022-01-18 01:20:57,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15731 states, 15730 states have (on average 3.4048315321042595) internal successors, (53558), 15730 states have internal predecessors, (53558), 0 states have call successors, (0), 0 states 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 01:20:57,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15731 states to 15731 states and 53558 transitions. [2022-01-18 01:20:57,687 INFO L78 Accepts]: Start accepts. Automaton has 15731 states and 53558 transitions. Word has length 134 [2022-01-18 01:20:57,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:20:57,689 INFO L470 AbstractCegarLoop]: Abstraction has 15731 states and 53558 transitions. [2022-01-18 01:20:57,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:20:57,690 INFO L276 IsEmpty]: Start isEmpty. Operand 15731 states and 53558 transitions. [2022-01-18 01:20:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:20:57,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:20:57,865 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, 1, 1, 1, 1, 1, 1, 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 01:20:57,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 01:20:57,866 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:20:57,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:20:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash 710948772, now seen corresponding path program 2 times [2022-01-18 01:20:57,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:20:57,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436450778] [2022-01-18 01:20:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:20:57,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:20:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:20:58,250 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 01:20:58,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:20:58,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436450778] [2022-01-18 01:20:58,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436450778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:20:58,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:20:58,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:20:58,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627493599] [2022-01-18 01:20:58,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:20:58,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:20:58,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:20:58,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:20:58,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:20:58,253 INFO L87 Difference]: Start difference. First operand 15731 states and 53558 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:20:58,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:20:58,979 INFO L93 Difference]: Finished difference Result 18843 states and 63888 transitions. [2022-01-18 01:20:58,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:20:58,980 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:20:58,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:20:59,148 INFO L225 Difference]: With dead ends: 18843 [2022-01-18 01:20:59,149 INFO L226 Difference]: Without dead ends: 18843 [2022-01-18 01:20:59,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:20:59,155 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 329 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 01:20:59,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 945 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 01:20:59,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18843 states. [2022-01-18 01:20:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18843 to 17183. [2022-01-18 01:20:59,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17183 states, 17182 states have (on average 3.3803980910254916) internal successors, (58082), 17182 states have internal predecessors, (58082), 0 states have call successors, (0), 0 states 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 01:20:59,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17183 states to 17183 states and 58082 transitions. [2022-01-18 01:20:59,905 INFO L78 Accepts]: Start accepts. Automaton has 17183 states and 58082 transitions. Word has length 134 [2022-01-18 01:20:59,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:20:59,906 INFO L470 AbstractCegarLoop]: Abstraction has 17183 states and 58082 transitions. [2022-01-18 01:20:59,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:20:59,906 INFO L276 IsEmpty]: Start isEmpty. Operand 17183 states and 58082 transitions. [2022-01-18 01:20:59,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:20:59,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:20:59,978 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, 1, 1, 1, 1, 1, 1, 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 01:20:59,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 01:20:59,978 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:20:59,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:20:59,979 INFO L85 PathProgramCache]: Analyzing trace with hash -932759446, now seen corresponding path program 3 times [2022-01-18 01:20:59,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:20:59,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616412638] [2022-01-18 01:20:59,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:20:59,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:00,222 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 01:21:00,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:00,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616412638] [2022-01-18 01:21:00,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616412638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:00,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:00,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:21:00,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306618309] [2022-01-18 01:21:00,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:00,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:21:00,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:00,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:21:00,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:00,225 INFO L87 Difference]: Start difference. First operand 17183 states and 58082 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:00,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:00,982 INFO L93 Difference]: Finished difference Result 24096 states and 79387 transitions. [2022-01-18 01:21:00,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:21:00,982 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:00,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:01,059 INFO L225 Difference]: With dead ends: 24096 [2022-01-18 01:21:01,059 INFO L226 Difference]: Without dead ends: 22809 [2022-01-18 01:21:01,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-01-18 01:21:01,061 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 562 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:01,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 1797 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 01:21:01,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22809 states. [2022-01-18 01:21:01,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22809 to 17367. [2022-01-18 01:21:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17367 states, 17366 states have (on average 3.3700333985949555) internal successors, (58524), 17366 states have internal predecessors, (58524), 0 states have call successors, (0), 0 states 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 01:21:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17367 states to 17367 states and 58524 transitions. [2022-01-18 01:21:01,873 INFO L78 Accepts]: Start accepts. Automaton has 17367 states and 58524 transitions. Word has length 134 [2022-01-18 01:21:01,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:01,873 INFO L470 AbstractCegarLoop]: Abstraction has 17367 states and 58524 transitions. [2022-01-18 01:21:01,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:01,874 INFO L276 IsEmpty]: Start isEmpty. Operand 17367 states and 58524 transitions. [2022-01-18 01:21:01,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:01,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:01,916 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, 1, 1, 1, 1, 1, 1, 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 01:21:01,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 01:21:01,917 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:01,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:01,917 INFO L85 PathProgramCache]: Analyzing trace with hash 607818392, now seen corresponding path program 4 times [2022-01-18 01:21:01,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:01,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136497370] [2022-01-18 01:21:01,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:01,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:02,183 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 01:21:02,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:02,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136497370] [2022-01-18 01:21:02,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136497370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:02,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:02,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:02,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268100730] [2022-01-18 01:21:02,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:02,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:02,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:02,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:02,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:02,185 INFO L87 Difference]: Start difference. First operand 17367 states and 58524 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:02,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:02,780 INFO L93 Difference]: Finished difference Result 23297 states and 78780 transitions. [2022-01-18 01:21:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:21:02,781 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:02,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:02,856 INFO L225 Difference]: With dead ends: 23297 [2022-01-18 01:21:02,856 INFO L226 Difference]: Without dead ends: 21811 [2022-01-18 01:21:02,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:02,858 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 160 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:02,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1105 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:02,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21811 states. [2022-01-18 01:21:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21811 to 17115. [2022-01-18 01:21:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17115 states, 17114 states have (on average 3.3658992637606637) internal successors, (57604), 17114 states have internal predecessors, (57604), 0 states have call successors, (0), 0 states 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 01:21:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17115 states to 17115 states and 57604 transitions. [2022-01-18 01:21:03,364 INFO L78 Accepts]: Start accepts. Automaton has 17115 states and 57604 transitions. Word has length 134 [2022-01-18 01:21:03,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:03,364 INFO L470 AbstractCegarLoop]: Abstraction has 17115 states and 57604 transitions. [2022-01-18 01:21:03,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:03,365 INFO L276 IsEmpty]: Start isEmpty. Operand 17115 states and 57604 transitions. [2022-01-18 01:21:03,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:03,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:03,403 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, 1, 1, 1, 1, 1, 1, 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 01:21:03,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 01:21:03,403 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:03,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:03,404 INFO L85 PathProgramCache]: Analyzing trace with hash 939090806, now seen corresponding path program 5 times [2022-01-18 01:21:03,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:03,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348800973] [2022-01-18 01:21:03,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:03,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:03,672 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 01:21:03,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:03,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348800973] [2022-01-18 01:21:03,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348800973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:03,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:03,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:21:03,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353773240] [2022-01-18 01:21:03,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:03,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:21:03,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:03,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:21:03,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:03,675 INFO L87 Difference]: Start difference. First operand 17115 states and 57604 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:04,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:04,243 INFO L93 Difference]: Finished difference Result 20679 states and 69425 transitions. [2022-01-18 01:21:04,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:21:04,243 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:04,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:04,310 INFO L225 Difference]: With dead ends: 20679 [2022-01-18 01:21:04,310 INFO L226 Difference]: Without dead ends: 20095 [2022-01-18 01:21:04,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:21:04,312 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 203 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:04,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 1038 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:04,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20095 states. [2022-01-18 01:21:04,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20095 to 17291. [2022-01-18 01:21:04,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17291 states, 17290 states have (on average 3.364488143435512) internal successors, (58172), 17290 states have internal predecessors, (58172), 0 states have call successors, (0), 0 states 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 01:21:04,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17291 states to 17291 states and 58172 transitions. [2022-01-18 01:21:04,777 INFO L78 Accepts]: Start accepts. Automaton has 17291 states and 58172 transitions. Word has length 134 [2022-01-18 01:21:04,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:04,777 INFO L470 AbstractCegarLoop]: Abstraction has 17291 states and 58172 transitions. [2022-01-18 01:21:04,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:04,777 INFO L276 IsEmpty]: Start isEmpty. Operand 17291 states and 58172 transitions. [2022-01-18 01:21:04,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:04,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:04,813 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, 1, 1, 1, 1, 1, 1, 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 01:21:04,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 01:21:04,813 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:04,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:04,813 INFO L85 PathProgramCache]: Analyzing trace with hash -630940832, now seen corresponding path program 6 times [2022-01-18 01:21:04,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:04,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313127212] [2022-01-18 01:21:04,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:04,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:05,089 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 01:21:05,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:05,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313127212] [2022-01-18 01:21:05,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313127212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:05,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:05,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:21:05,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273574803] [2022-01-18 01:21:05,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:05,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:21:05,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:05,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:21:05,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:05,098 INFO L87 Difference]: Start difference. First operand 17291 states and 58172 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:05,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:05,515 INFO L93 Difference]: Finished difference Result 36182 states and 124131 transitions. [2022-01-18 01:21:05,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:21:05,516 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:05,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:05,625 INFO L225 Difference]: With dead ends: 36182 [2022-01-18 01:21:05,625 INFO L226 Difference]: Without dead ends: 35196 [2022-01-18 01:21:05,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:21:05,626 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 389 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:05,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 750 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:05,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35196 states. [2022-01-18 01:21:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35196 to 17761. [2022-01-18 01:21:06,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17761 states, 17760 states have (on average 3.3545045045045043) internal successors, (59576), 17760 states have internal predecessors, (59576), 0 states have call successors, (0), 0 states 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 01:21:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17761 states to 17761 states and 59576 transitions. [2022-01-18 01:21:06,278 INFO L78 Accepts]: Start accepts. Automaton has 17761 states and 59576 transitions. Word has length 134 [2022-01-18 01:21:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:06,279 INFO L470 AbstractCegarLoop]: Abstraction has 17761 states and 59576 transitions. [2022-01-18 01:21:06,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 17761 states and 59576 transitions. [2022-01-18 01:21:06,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:06,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:06,319 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, 1, 1, 1, 1, 1, 1, 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 01:21:06,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 01:21:06,320 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:06,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:06,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1577188288, now seen corresponding path program 7 times [2022-01-18 01:21:06,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:06,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437328310] [2022-01-18 01:21:06,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:06,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:06,541 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 01:21:06,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:06,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437328310] [2022-01-18 01:21:06,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437328310] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:06,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:06,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:21:06,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423912964] [2022-01-18 01:21:06,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:06,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:21:06,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:06,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:21:06,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:21:06,543 INFO L87 Difference]: Start difference. First operand 17761 states and 59576 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:07,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:07,345 INFO L93 Difference]: Finished difference Result 31299 states and 105782 transitions. [2022-01-18 01:21:07,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:21:07,345 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:07,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:07,424 INFO L225 Difference]: With dead ends: 31299 [2022-01-18 01:21:07,424 INFO L226 Difference]: Without dead ends: 31299 [2022-01-18 01:21:07,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-01-18 01:21:07,425 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 339 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:07,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 1507 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 01:21:07,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31299 states. [2022-01-18 01:21:08,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31299 to 19621. [2022-01-18 01:21:08,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19621 states, 19620 states have (on average 3.3579510703363913) internal successors, (65883), 19620 states have internal predecessors, (65883), 0 states have call successors, (0), 0 states 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 01:21:08,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19621 states to 19621 states and 65883 transitions. [2022-01-18 01:21:08,082 INFO L78 Accepts]: Start accepts. Automaton has 19621 states and 65883 transitions. Word has length 134 [2022-01-18 01:21:08,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:08,082 INFO L470 AbstractCegarLoop]: Abstraction has 19621 states and 65883 transitions. [2022-01-18 01:21:08,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:08,082 INFO L276 IsEmpty]: Start isEmpty. Operand 19621 states and 65883 transitions. [2022-01-18 01:21:08,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:08,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:08,116 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, 1, 1, 1, 1, 1, 1, 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 01:21:08,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 01:21:08,116 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:08,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:08,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1664706560, now seen corresponding path program 8 times [2022-01-18 01:21:08,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:08,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924751038] [2022-01-18 01:21:08,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:08,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:08,320 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 01:21:08,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:08,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924751038] [2022-01-18 01:21:08,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924751038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:08,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:08,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:21:08,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832695802] [2022-01-18 01:21:08,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:08,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:21:08,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:08,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:21:08,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:08,322 INFO L87 Difference]: Start difference. First operand 19621 states and 65883 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:09,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:09,052 INFO L93 Difference]: Finished difference Result 26616 states and 87632 transitions. [2022-01-18 01:21:09,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:21:09,052 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:09,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:09,132 INFO L225 Difference]: With dead ends: 26616 [2022-01-18 01:21:09,132 INFO L226 Difference]: Without dead ends: 24830 [2022-01-18 01:21:09,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-01-18 01:21:09,133 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 474 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:09,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2038 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 01:21:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24830 states. [2022-01-18 01:21:09,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24830 to 19205. [2022-01-18 01:21:09,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19205 states, 19204 states have (on average 3.3444594876067484) internal successors, (64227), 19204 states have internal predecessors, (64227), 0 states have call successors, (0), 0 states 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 01:21:09,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19205 states to 19205 states and 64227 transitions. [2022-01-18 01:21:09,775 INFO L78 Accepts]: Start accepts. Automaton has 19205 states and 64227 transitions. Word has length 134 [2022-01-18 01:21:09,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:09,775 INFO L470 AbstractCegarLoop]: Abstraction has 19205 states and 64227 transitions. [2022-01-18 01:21:09,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:09,775 INFO L276 IsEmpty]: Start isEmpty. Operand 19205 states and 64227 transitions. [2022-01-18 01:21:09,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:09,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:09,806 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, 1, 1, 1, 1, 1, 1, 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 01:21:09,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 01:21:09,806 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:09,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash -593083748, now seen corresponding path program 9 times [2022-01-18 01:21:09,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:09,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366567729] [2022-01-18 01:21:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:09,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:09,984 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 01:21:09,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:09,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366567729] [2022-01-18 01:21:09,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366567729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:09,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:09,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:21:09,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852466165] [2022-01-18 01:21:09,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:09,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:21:09,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:09,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:21:09,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:09,986 INFO L87 Difference]: Start difference. First operand 19205 states and 64227 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:10,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:10,615 INFO L93 Difference]: Finished difference Result 37659 states and 127487 transitions. [2022-01-18 01:21:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:21:10,615 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:10,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:10,972 INFO L225 Difference]: With dead ends: 37659 [2022-01-18 01:21:10,972 INFO L226 Difference]: Without dead ends: 37113 [2022-01-18 01:21:10,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-01-18 01:21:10,973 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 392 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:10,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 1323 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 01:21:11,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37113 states. [2022-01-18 01:21:11,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37113 to 20699. [2022-01-18 01:21:11,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20699 states, 20698 states have (on average 3.3450091796308823) internal successors, (69235), 20698 states have internal predecessors, (69235), 0 states have call successors, (0), 0 states 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 01:21:11,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20699 states to 20699 states and 69235 transitions. [2022-01-18 01:21:11,431 INFO L78 Accepts]: Start accepts. Automaton has 20699 states and 69235 transitions. Word has length 134 [2022-01-18 01:21:11,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:11,432 INFO L470 AbstractCegarLoop]: Abstraction has 20699 states and 69235 transitions. [2022-01-18 01:21:11,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:11,432 INFO L276 IsEmpty]: Start isEmpty. Operand 20699 states and 69235 transitions. [2022-01-18 01:21:11,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:11,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:11,466 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, 1, 1, 1, 1, 1, 1, 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 01:21:11,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 01:21:11,643 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:11,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash -626810890, now seen corresponding path program 10 times [2022-01-18 01:21:11,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:11,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642404181] [2022-01-18 01:21:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:11,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:11,843 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 01:21:11,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:11,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642404181] [2022-01-18 01:21:11,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642404181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:11,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:11,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:21:11,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920529745] [2022-01-18 01:21:11,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:11,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:21:11,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:11,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:21:11,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:21:11,845 INFO L87 Difference]: Start difference. First operand 20699 states and 69235 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:12,279 INFO L93 Difference]: Finished difference Result 30473 states and 102576 transitions. [2022-01-18 01:21:12,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:21:12,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:12,370 INFO L225 Difference]: With dead ends: 30473 [2022-01-18 01:21:12,371 INFO L226 Difference]: Without dead ends: 30473 [2022-01-18 01:21:12,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:21:12,372 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 242 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:12,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 836 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:12,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30473 states. [2022-01-18 01:21:12,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30473 to 22523. [2022-01-18 01:21:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22523 states, 22522 states have (on average 3.3483260811650832) internal successors, (75411), 22522 states have internal predecessors, (75411), 0 states have call successors, (0), 0 states 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 01:21:13,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22523 states to 22523 states and 75411 transitions. [2022-01-18 01:21:13,001 INFO L78 Accepts]: Start accepts. Automaton has 22523 states and 75411 transitions. Word has length 134 [2022-01-18 01:21:13,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:13,001 INFO L470 AbstractCegarLoop]: Abstraction has 22523 states and 75411 transitions. [2022-01-18 01:21:13,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:13,002 INFO L276 IsEmpty]: Start isEmpty. Operand 22523 states and 75411 transitions. [2022-01-18 01:21:13,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:13,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:13,040 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, 1, 1, 1, 1, 1, 1, 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 01:21:13,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 01:21:13,040 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:13,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:13,041 INFO L85 PathProgramCache]: Analyzing trace with hash 2039189400, now seen corresponding path program 11 times [2022-01-18 01:21:13,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:13,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387673957] [2022-01-18 01:21:13,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:13,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:13,269 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 01:21:13,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:13,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387673957] [2022-01-18 01:21:13,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387673957] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:13,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:13,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:21:13,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015128669] [2022-01-18 01:21:13,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:13,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:21:13,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:13,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:21:13,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:13,271 INFO L87 Difference]: Start difference. First operand 22523 states and 75411 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:13,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:13,804 INFO L93 Difference]: Finished difference Result 30011 states and 100905 transitions. [2022-01-18 01:21:13,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 01:21:13,804 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:13,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:13,878 INFO L225 Difference]: With dead ends: 30011 [2022-01-18 01:21:13,878 INFO L226 Difference]: Without dead ends: 29219 [2022-01-18 01:21:13,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:21:13,880 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 334 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:13,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1259 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:13,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29219 states. [2022-01-18 01:21:14,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29219 to 23555. [2022-01-18 01:21:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23555 states, 23554 states have (on average 3.3540375307803347) internal successors, (79001), 23554 states have internal predecessors, (79001), 0 states have call successors, (0), 0 states 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 01:21:14,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23555 states to 23555 states and 79001 transitions. [2022-01-18 01:21:14,491 INFO L78 Accepts]: Start accepts. Automaton has 23555 states and 79001 transitions. Word has length 134 [2022-01-18 01:21:14,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:14,492 INFO L470 AbstractCegarLoop]: Abstraction has 23555 states and 79001 transitions. [2022-01-18 01:21:14,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:14,492 INFO L276 IsEmpty]: Start isEmpty. Operand 23555 states and 79001 transitions. [2022-01-18 01:21:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:14,528 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:14,528 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, 1, 1, 1, 1, 1, 1, 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 01:21:14,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 01:21:14,528 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:14,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1271673356, now seen corresponding path program 12 times [2022-01-18 01:21:14,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:14,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408767731] [2022-01-18 01:21:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:14,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:14,718 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 01:21:14,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:14,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408767731] [2022-01-18 01:21:14,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408767731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:14,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:14,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:21:14,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772855403] [2022-01-18 01:21:14,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:14,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:21:14,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:14,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:21:14,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:21:14,720 INFO L87 Difference]: Start difference. First operand 23555 states and 79001 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:15,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:15,045 INFO L93 Difference]: Finished difference Result 26969 states and 90138 transitions. [2022-01-18 01:21:15,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:21:15,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:15,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:15,103 INFO L225 Difference]: With dead ends: 26969 [2022-01-18 01:21:15,103 INFO L226 Difference]: Without dead ends: 25605 [2022-01-18 01:21:15,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:15,104 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 162 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:15,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 936 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:15,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25605 states. [2022-01-18 01:21:15,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25605 to 24039. [2022-01-18 01:21:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24039 states, 24038 states have (on average 3.3512771445211746) internal successors, (80558), 24038 states have internal predecessors, (80558), 0 states have call successors, (0), 0 states 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 01:21:15,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24039 states to 24039 states and 80558 transitions. [2022-01-18 01:21:15,712 INFO L78 Accepts]: Start accepts. Automaton has 24039 states and 80558 transitions. Word has length 134 [2022-01-18 01:21:15,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:15,713 INFO L470 AbstractCegarLoop]: Abstraction has 24039 states and 80558 transitions. [2022-01-18 01:21:15,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:15,713 INFO L276 IsEmpty]: Start isEmpty. Operand 24039 states and 80558 transitions. [2022-01-18 01:21:15,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:15,750 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:15,750 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, 1, 1, 1, 1, 1, 1, 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 01:21:15,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 01:21:15,751 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:15,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:15,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1501924516, now seen corresponding path program 13 times [2022-01-18 01:21:15,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:15,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995851597] [2022-01-18 01:21:15,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:15,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:15,938 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 01:21:15,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:15,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995851597] [2022-01-18 01:21:15,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995851597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:15,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:15,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:15,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474843674] [2022-01-18 01:21:15,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:15,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:15,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:15,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:15,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:15,939 INFO L87 Difference]: Start difference. First operand 24039 states and 80558 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:16,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:16,313 INFO L93 Difference]: Finished difference Result 24583 states and 82158 transitions. [2022-01-18 01:21:16,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:21:16,314 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:16,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:16,378 INFO L225 Difference]: With dead ends: 24583 [2022-01-18 01:21:16,379 INFO L226 Difference]: Without dead ends: 23999 [2022-01-18 01:21:16,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:21:16,379 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 200 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:16,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 862 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:16,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23999 states. [2022-01-18 01:21:16,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23999 to 23999. [2022-01-18 01:21:16,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23999 states, 23998 states have (on average 3.3499458288190684) internal successors, (80392), 23998 states have internal predecessors, (80392), 0 states have call successors, (0), 0 states 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 01:21:16,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23999 states to 23999 states and 80392 transitions. [2022-01-18 01:21:16,995 INFO L78 Accepts]: Start accepts. Automaton has 23999 states and 80392 transitions. Word has length 134 [2022-01-18 01:21:16,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:16,995 INFO L470 AbstractCegarLoop]: Abstraction has 23999 states and 80392 transitions. [2022-01-18 01:21:16,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:16,995 INFO L276 IsEmpty]: Start isEmpty. Operand 23999 states and 80392 transitions. [2022-01-18 01:21:17,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:17,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:17,034 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, 1, 1, 1, 1, 1, 1, 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 01:21:17,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 01:21:17,035 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:17,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1572281214, now seen corresponding path program 14 times [2022-01-18 01:21:17,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:17,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069755620] [2022-01-18 01:21:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:17,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:17,239 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 01:21:17,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:17,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069755620] [2022-01-18 01:21:17,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069755620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:17,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:17,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:21:17,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076580771] [2022-01-18 01:21:17,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:17,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:21:17,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:17,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:21:17,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:17,241 INFO L87 Difference]: Start difference. First operand 23999 states and 80392 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:17,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:17,613 INFO L93 Difference]: Finished difference Result 24651 states and 82369 transitions. [2022-01-18 01:21:17,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:21:17,613 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:17,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:17,960 INFO L225 Difference]: With dead ends: 24651 [2022-01-18 01:21:17,960 INFO L226 Difference]: Without dead ends: 23903 [2022-01-18 01:21:17,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:17,961 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 223 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:17,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 959 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:17,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23903 states. [2022-01-18 01:21:18,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23903 to 23903. [2022-01-18 01:21:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23903 states, 23902 states have (on average 3.351853401389005) internal successors, (80116), 23902 states have internal predecessors, (80116), 0 states have call successors, (0), 0 states 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 01:21:18,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23903 states to 23903 states and 80116 transitions. [2022-01-18 01:21:18,431 INFO L78 Accepts]: Start accepts. Automaton has 23903 states and 80116 transitions. Word has length 134 [2022-01-18 01:21:18,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:18,431 INFO L470 AbstractCegarLoop]: Abstraction has 23903 states and 80116 transitions. [2022-01-18 01:21:18,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand 23903 states and 80116 transitions. [2022-01-18 01:21:18,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:18,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:18,473 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, 1, 1, 1, 1, 1, 1, 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 01:21:18,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 01:21:18,473 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:18,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:18,473 INFO L85 PathProgramCache]: Analyzing trace with hash 982480142, now seen corresponding path program 15 times [2022-01-18 01:21:18,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:18,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685296649] [2022-01-18 01:21:18,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:18,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:18,661 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 01:21:18,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:18,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685296649] [2022-01-18 01:21:18,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685296649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:18,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:18,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:18,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454607789] [2022-01-18 01:21:18,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:18,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:18,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:18,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:18,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:18,663 INFO L87 Difference]: Start difference. First operand 23903 states and 80116 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:18,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:18,994 INFO L93 Difference]: Finished difference Result 26501 states and 88863 transitions. [2022-01-18 01:21:18,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:21:18,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:18,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:19,333 INFO L225 Difference]: With dead ends: 26501 [2022-01-18 01:21:19,333 INFO L226 Difference]: Without dead ends: 25917 [2022-01-18 01:21:19,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:21:19,336 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:19,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 913 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:19,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25917 states. [2022-01-18 01:21:19,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25917 to 23607. [2022-01-18 01:21:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23607 states, 23606 states have (on average 3.3546555960349065) internal successors, (79190), 23606 states have internal predecessors, (79190), 0 states have call successors, (0), 0 states 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 01:21:19,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23607 states to 23607 states and 79190 transitions. [2022-01-18 01:21:19,735 INFO L78 Accepts]: Start accepts. Automaton has 23607 states and 79190 transitions. Word has length 134 [2022-01-18 01:21:19,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:19,736 INFO L470 AbstractCegarLoop]: Abstraction has 23607 states and 79190 transitions. [2022-01-18 01:21:19,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:19,736 INFO L276 IsEmpty]: Start isEmpty. Operand 23607 states and 79190 transitions. [2022-01-18 01:21:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:19,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:19,774 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, 1, 1, 1, 1, 1, 1, 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 01:21:19,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 01:21:19,774 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:19,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:19,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1060676230, now seen corresponding path program 16 times [2022-01-18 01:21:19,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:19,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259672670] [2022-01-18 01:21:19,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:19,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:19,957 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 01:21:19,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:19,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259672670] [2022-01-18 01:21:19,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259672670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:19,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:19,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:21:19,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325888642] [2022-01-18 01:21:19,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:19,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:21:19,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:19,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:21:19,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:19,959 INFO L87 Difference]: Start difference. First operand 23607 states and 79190 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:20,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:20,282 INFO L93 Difference]: Finished difference Result 24259 states and 81167 transitions. [2022-01-18 01:21:20,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:21:20,282 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:20,645 INFO L225 Difference]: With dead ends: 24259 [2022-01-18 01:21:20,646 INFO L226 Difference]: Without dead ends: 23519 [2022-01-18 01:21:20,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:20,648 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 198 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:20,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 966 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:20,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23519 states. [2022-01-18 01:21:21,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23519 to 23519. [2022-01-18 01:21:21,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23519 states, 23518 states have (on average 3.3552172803809848) internal successors, (78908), 23518 states have internal predecessors, (78908), 0 states have call successors, (0), 0 states 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 01:21:21,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23519 states to 23519 states and 78908 transitions. [2022-01-18 01:21:21,240 INFO L78 Accepts]: Start accepts. Automaton has 23519 states and 78908 transitions. Word has length 134 [2022-01-18 01:21:21,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:21,241 INFO L470 AbstractCegarLoop]: Abstraction has 23519 states and 78908 transitions. [2022-01-18 01:21:21,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:21,241 INFO L276 IsEmpty]: Start isEmpty. Operand 23519 states and 78908 transitions. [2022-01-18 01:21:21,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:21,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:21,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:21,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 01:21:21,289 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:21,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:21,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1095133630, now seen corresponding path program 17 times [2022-01-18 01:21:21,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:21,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600334743] [2022-01-18 01:21:21,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:21,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:21,479 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 01:21:21,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:21,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600334743] [2022-01-18 01:21:21,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600334743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:21,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:21,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:21,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276344950] [2022-01-18 01:21:21,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:21,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:21,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:21,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:21,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:21,481 INFO L87 Difference]: Start difference. First operand 23519 states and 78908 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:21,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:21,849 INFO L93 Difference]: Finished difference Result 23691 states and 79385 transitions. [2022-01-18 01:21:21,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:21:21,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:21,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:21,923 INFO L225 Difference]: With dead ends: 23691 [2022-01-18 01:21:21,923 INFO L226 Difference]: Without dead ends: 23039 [2022-01-18 01:21:21,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:21,924 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 128 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:21,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1126 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:22,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23039 states. [2022-01-18 01:21:22,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23039 to 23039. [2022-01-18 01:21:22,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23039 states, 23038 states have (on average 3.355846861706745) internal successors, (77312), 23038 states have internal predecessors, (77312), 0 states have call successors, (0), 0 states 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 01:21:22,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23039 states to 23039 states and 77312 transitions. [2022-01-18 01:21:22,542 INFO L78 Accepts]: Start accepts. Automaton has 23039 states and 77312 transitions. Word has length 134 [2022-01-18 01:21:22,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:22,542 INFO L470 AbstractCegarLoop]: Abstraction has 23039 states and 77312 transitions. [2022-01-18 01:21:22,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:22,542 INFO L276 IsEmpty]: Start isEmpty. Operand 23039 states and 77312 transitions. [2022-01-18 01:21:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:22,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:22,578 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, 1, 1, 1, 1, 1, 1, 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 01:21:22,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 01:21:22,578 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:22,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:22,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1515671700, now seen corresponding path program 18 times [2022-01-18 01:21:22,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:22,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467297664] [2022-01-18 01:21:22,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:22,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:22,623 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 01:21:22,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:22,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467297664] [2022-01-18 01:21:22,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467297664] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:22,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:22,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:21:22,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854861293] [2022-01-18 01:21:22,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:22,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:21:22,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:22,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:21:22,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:21:22,625 INFO L87 Difference]: Start difference. First operand 23039 states and 77312 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:22,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:22,779 INFO L93 Difference]: Finished difference Result 21787 states and 72183 transitions. [2022-01-18 01:21:22,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:21:22,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:22,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:22,845 INFO L225 Difference]: With dead ends: 21787 [2022-01-18 01:21:22,846 INFO L226 Difference]: Without dead ends: 21663 [2022-01-18 01:21:22,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:21:22,846 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 27 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:22,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 230 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:21:22,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21663 states. [2022-01-18 01:21:23,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21663 to 21663. [2022-01-18 01:21:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21663 states, 21662 states have (on average 3.3174683778044503) internal successors, (71863), 21662 states have internal predecessors, (71863), 0 states have call successors, (0), 0 states 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 01:21:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21663 states to 21663 states and 71863 transitions. [2022-01-18 01:21:23,492 INFO L78 Accepts]: Start accepts. Automaton has 21663 states and 71863 transitions. Word has length 134 [2022-01-18 01:21:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:23,492 INFO L470 AbstractCegarLoop]: Abstraction has 21663 states and 71863 transitions. [2022-01-18 01:21:23,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 21663 states and 71863 transitions. [2022-01-18 01:21:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:23,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:23,527 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, 1, 1, 1, 1, 1, 1, 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 01:21:23,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 01:21:23,528 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:23,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:23,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1915533884, now seen corresponding path program 19 times [2022-01-18 01:21:23,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:23,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427475755] [2022-01-18 01:21:23,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:23,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:23,682 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 01:21:23,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:23,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427475755] [2022-01-18 01:21:23,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427475755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:23,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:23,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:21:23,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971650611] [2022-01-18 01:21:23,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:23,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:21:23,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:23,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:21:23,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:23,684 INFO L87 Difference]: Start difference. First operand 21663 states and 71863 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:24,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:24,239 INFO L93 Difference]: Finished difference Result 28058 states and 91482 transitions. [2022-01-18 01:21:24,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:21:24,239 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:24,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:24,305 INFO L225 Difference]: With dead ends: 28058 [2022-01-18 01:21:24,305 INFO L226 Difference]: Without dead ends: 26163 [2022-01-18 01:21:24,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-01-18 01:21:24,306 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 590 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:24,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 1813 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:24,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26163 states. [2022-01-18 01:21:24,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26163 to 21421. [2022-01-18 01:21:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21421 states, 21420 states have (on average 3.306395891690009) internal successors, (70823), 21420 states have internal predecessors, (70823), 0 states have call successors, (0), 0 states 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 01:21:24,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21421 states to 21421 states and 70823 transitions. [2022-01-18 01:21:24,916 INFO L78 Accepts]: Start accepts. Automaton has 21421 states and 70823 transitions. Word has length 134 [2022-01-18 01:21:24,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:24,916 INFO L470 AbstractCegarLoop]: Abstraction has 21421 states and 70823 transitions. [2022-01-18 01:21:24,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:24,916 INFO L276 IsEmpty]: Start isEmpty. Operand 21421 states and 70823 transitions. [2022-01-18 01:21:24,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:24,950 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:24,950 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, 1, 1, 1, 1, 1, 1, 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 01:21:24,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 01:21:24,950 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:24,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:24,951 INFO L85 PathProgramCache]: Analyzing trace with hash -313422070, now seen corresponding path program 20 times [2022-01-18 01:21:24,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:24,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620426411] [2022-01-18 01:21:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:24,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:25,083 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 01:21:25,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:25,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620426411] [2022-01-18 01:21:25,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620426411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:25,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:25,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:21:25,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324744611] [2022-01-18 01:21:25,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:25,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:21:25,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:25,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:21:25,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:21:25,085 INFO L87 Difference]: Start difference. First operand 21421 states and 70823 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:25,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:25,393 INFO L93 Difference]: Finished difference Result 23257 states and 76836 transitions. [2022-01-18 01:21:25,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:21:25,394 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:25,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:25,454 INFO L225 Difference]: With dead ends: 23257 [2022-01-18 01:21:25,454 INFO L226 Difference]: Without dead ends: 21892 [2022-01-18 01:21:25,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:25,456 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 247 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:25,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 794 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21892 states. [2022-01-18 01:21:25,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21892 to 20780. [2022-01-18 01:21:25,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20780 states, 20779 states have (on average 3.305452620434092) internal successors, (68684), 20779 states have internal predecessors, (68684), 0 states have call successors, (0), 0 states 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 01:21:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20780 states to 20780 states and 68684 transitions. [2022-01-18 01:21:26,047 INFO L78 Accepts]: Start accepts. Automaton has 20780 states and 68684 transitions. Word has length 134 [2022-01-18 01:21:26,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:26,048 INFO L470 AbstractCegarLoop]: Abstraction has 20780 states and 68684 transitions. [2022-01-18 01:21:26,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 20780 states and 68684 transitions. [2022-01-18 01:21:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:26,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:26,079 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, 1, 1, 1, 1, 1, 1, 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 01:21:26,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 01:21:26,079 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:26,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:26,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1576421818, now seen corresponding path program 21 times [2022-01-18 01:21:26,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:26,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989445301] [2022-01-18 01:21:26,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:26,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:26,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 01:21:26,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:26,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989445301] [2022-01-18 01:21:26,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989445301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:26,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:26,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:26,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204855556] [2022-01-18 01:21:26,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:26,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:26,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:26,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:26,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:26,298 INFO L87 Difference]: Start difference. First operand 20780 states and 68684 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:26,631 INFO L93 Difference]: Finished difference Result 23048 states and 75855 transitions. [2022-01-18 01:21:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:21:26,632 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:26,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:26,677 INFO L225 Difference]: With dead ends: 23048 [2022-01-18 01:21:26,677 INFO L226 Difference]: Without dead ends: 22084 [2022-01-18 01:21:26,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:26,678 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 201 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:26,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 920 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:26,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22084 states. [2022-01-18 01:21:26,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22084 to 21084. [2022-01-18 01:21:26,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21084 states, 21083 states have (on average 3.302423753735237) internal successors, (69625), 21083 states have internal predecessors, (69625), 0 states have call successors, (0), 0 states 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 01:21:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21084 states to 21084 states and 69625 transitions. [2022-01-18 01:21:27,013 INFO L78 Accepts]: Start accepts. Automaton has 21084 states and 69625 transitions. Word has length 134 [2022-01-18 01:21:27,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:27,013 INFO L470 AbstractCegarLoop]: Abstraction has 21084 states and 69625 transitions. [2022-01-18 01:21:27,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:27,014 INFO L276 IsEmpty]: Start isEmpty. Operand 21084 states and 69625 transitions. [2022-01-18 01:21:27,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:27,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:27,048 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, 1, 1, 1, 1, 1, 1, 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 01:21:27,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 01:21:27,049 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:27,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:27,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1326219728, now seen corresponding path program 22 times [2022-01-18 01:21:27,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:27,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481936641] [2022-01-18 01:21:27,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:27,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:27,580 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 01:21:27,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:27,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481936641] [2022-01-18 01:21:27,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481936641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:27,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:27,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:21:27,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788965329] [2022-01-18 01:21:27,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:27,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:21:27,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:27,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:21:27,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:27,582 INFO L87 Difference]: Start difference. First operand 21084 states and 69625 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:28,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:28,067 INFO L93 Difference]: Finished difference Result 21932 states and 72281 transitions. [2022-01-18 01:21:28,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:21:28,067 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:28,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:28,111 INFO L225 Difference]: With dead ends: 21932 [2022-01-18 01:21:28,111 INFO L226 Difference]: Without dead ends: 21932 [2022-01-18 01:21:28,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:21:28,112 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 172 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:28,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 1233 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:28,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21932 states. [2022-01-18 01:21:28,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21932 to 21916. [2022-01-18 01:21:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21916 states, 21915 states have (on average 3.2962354551676936) internal successors, (72237), 21915 states have internal predecessors, (72237), 0 states have call successors, (0), 0 states 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 01:21:28,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21916 states to 21916 states and 72237 transitions. [2022-01-18 01:21:28,452 INFO L78 Accepts]: Start accepts. Automaton has 21916 states and 72237 transitions. Word has length 134 [2022-01-18 01:21:28,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:28,452 INFO L470 AbstractCegarLoop]: Abstraction has 21916 states and 72237 transitions. [2022-01-18 01:21:28,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:28,452 INFO L276 IsEmpty]: Start isEmpty. Operand 21916 states and 72237 transitions. [2022-01-18 01:21:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:28,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:28,486 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, 1, 1, 1, 1, 1, 1, 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 01:21:28,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 01:21:28,486 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:28,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:28,486 INFO L85 PathProgramCache]: Analyzing trace with hash -145875978, now seen corresponding path program 23 times [2022-01-18 01:21:28,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:28,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411984363] [2022-01-18 01:21:28,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:28,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:28,723 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 01:21:28,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:28,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411984363] [2022-01-18 01:21:28,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411984363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:28,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:28,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:21:28,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488839031] [2022-01-18 01:21:28,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:28,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:21:28,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:28,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:21:28,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:28,724 INFO L87 Difference]: Start difference. First operand 21916 states and 72237 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:29,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:29,599 INFO L93 Difference]: Finished difference Result 35950 states and 120346 transitions. [2022-01-18 01:21:29,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:21:29,599 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:29,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:29,683 INFO L225 Difference]: With dead ends: 35950 [2022-01-18 01:21:29,683 INFO L226 Difference]: Without dead ends: 35614 [2022-01-18 01:21:29,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:21:29,684 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 488 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:29,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 1390 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 01:21:29,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35614 states. [2022-01-18 01:21:30,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35614 to 21724. [2022-01-18 01:21:30,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21724 states, 21723 states have (on average 3.297380656447084) internal successors, (71629), 21723 states have internal predecessors, (71629), 0 states have call successors, (0), 0 states 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 01:21:30,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21724 states to 21724 states and 71629 transitions. [2022-01-18 01:21:30,226 INFO L78 Accepts]: Start accepts. Automaton has 21724 states and 71629 transitions. Word has length 134 [2022-01-18 01:21:30,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:30,226 INFO L470 AbstractCegarLoop]: Abstraction has 21724 states and 71629 transitions. [2022-01-18 01:21:30,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:30,227 INFO L276 IsEmpty]: Start isEmpty. Operand 21724 states and 71629 transitions. [2022-01-18 01:21:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:30,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:30,261 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, 1, 1, 1, 1, 1, 1, 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 01:21:30,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 01:21:30,262 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash 651445610, now seen corresponding path program 24 times [2022-01-18 01:21:30,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:30,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939844880] [2022-01-18 01:21:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:30,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:30,478 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 01:21:30,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:30,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939844880] [2022-01-18 01:21:30,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939844880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:30,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:30,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:21:30,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907311859] [2022-01-18 01:21:30,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:30,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:21:30,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:30,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:21:30,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:21:30,483 INFO L87 Difference]: Start difference. First operand 21724 states and 71629 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:30,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:30,914 INFO L93 Difference]: Finished difference Result 22412 states and 73861 transitions. [2022-01-18 01:21:30,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:21:30,915 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:30,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:30,961 INFO L225 Difference]: With dead ends: 22412 [2022-01-18 01:21:30,961 INFO L226 Difference]: Without dead ends: 22412 [2022-01-18 01:21:30,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:30,962 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 136 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:30,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 999 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:30,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22412 states. [2022-01-18 01:21:31,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22412 to 21412. [2022-01-18 01:21:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21412 states, 21411 states have (on average 3.297510625379478) internal successors, (70603), 21411 states have internal predecessors, (70603), 0 states have call successors, (0), 0 states 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 01:21:31,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21412 states to 21412 states and 70603 transitions. [2022-01-18 01:21:31,294 INFO L78 Accepts]: Start accepts. Automaton has 21412 states and 70603 transitions. Word has length 134 [2022-01-18 01:21:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:31,294 INFO L470 AbstractCegarLoop]: Abstraction has 21412 states and 70603 transitions. [2022-01-18 01:21:31,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 21412 states and 70603 transitions. [2022-01-18 01:21:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:31,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:31,327 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, 1, 1, 1, 1, 1, 1, 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 01:21:31,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 01:21:31,327 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:31,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:31,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1074885588, now seen corresponding path program 25 times [2022-01-18 01:21:31,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:31,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590367869] [2022-01-18 01:21:31,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:31,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:31,585 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 01:21:31,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:31,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590367869] [2022-01-18 01:21:31,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590367869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:31,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:31,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:21:31,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836763740] [2022-01-18 01:21:31,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:31,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:21:31,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:31,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:21:31,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:21:31,587 INFO L87 Difference]: Start difference. First operand 21412 states and 70603 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:32,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:32,035 INFO L93 Difference]: Finished difference Result 21748 states and 71531 transitions. [2022-01-18 01:21:32,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:21:32,036 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:32,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:32,081 INFO L225 Difference]: With dead ends: 21748 [2022-01-18 01:21:32,081 INFO L226 Difference]: Without dead ends: 21328 [2022-01-18 01:21:32,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:21:32,082 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 274 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:32,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 1069 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:32,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21328 states. [2022-01-18 01:21:32,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21328 to 21016. [2022-01-18 01:21:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21016 states, 21015 states have (on average 3.3046395431834403) internal successors, (69447), 21015 states have internal predecessors, (69447), 0 states have call successors, (0), 0 states 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 01:21:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21016 states to 21016 states and 69447 transitions. [2022-01-18 01:21:32,515 INFO L78 Accepts]: Start accepts. Automaton has 21016 states and 69447 transitions. Word has length 134 [2022-01-18 01:21:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:32,515 INFO L470 AbstractCegarLoop]: Abstraction has 21016 states and 69447 transitions. [2022-01-18 01:21:32,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 21016 states and 69447 transitions. [2022-01-18 01:21:32,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:32,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:32,547 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, 1, 1, 1, 1, 1, 1, 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 01:21:32,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 01:21:32,547 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:32,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:32,547 INFO L85 PathProgramCache]: Analyzing trace with hash -441162498, now seen corresponding path program 26 times [2022-01-18 01:21:32,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:32,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856208073] [2022-01-18 01:21:32,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:32,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:32,581 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 01:21:32,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:32,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856208073] [2022-01-18 01:21:32,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856208073] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:32,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:32,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 01:21:32,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891099625] [2022-01-18 01:21:32,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:32,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 01:21:32,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:32,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 01:21:32,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:21:32,583 INFO L87 Difference]: Start difference. First operand 21016 states and 69447 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:32,706 INFO L93 Difference]: Finished difference Result 20364 states and 66466 transitions. [2022-01-18 01:21:32,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 01:21:32,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:32,747 INFO L225 Difference]: With dead ends: 20364 [2022-01-18 01:21:32,747 INFO L226 Difference]: Without dead ends: 20364 [2022-01-18 01:21:32,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 01:21:32,748 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 35 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:32,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 233 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 01:21:32,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20364 states. [2022-01-18 01:21:32,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20364 to 20364. [2022-01-18 01:21:33,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20364 states, 20363 states have (on average 3.264057358935324) internal successors, (66466), 20363 states have internal predecessors, (66466), 0 states have call successors, (0), 0 states 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 01:21:33,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20364 states to 20364 states and 66466 transitions. [2022-01-18 01:21:33,258 INFO L78 Accepts]: Start accepts. Automaton has 20364 states and 66466 transitions. Word has length 134 [2022-01-18 01:21:33,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:33,259 INFO L470 AbstractCegarLoop]: Abstraction has 20364 states and 66466 transitions. [2022-01-18 01:21:33,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:33,259 INFO L276 IsEmpty]: Start isEmpty. Operand 20364 states and 66466 transitions. [2022-01-18 01:21:33,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:33,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:33,290 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, 1, 1, 1, 1, 1, 1, 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 01:21:33,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 01:21:33,290 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:33,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:33,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1807242936, now seen corresponding path program 27 times [2022-01-18 01:21:33,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:33,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874148484] [2022-01-18 01:21:33,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:33,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:33,488 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 01:21:33,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:33,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874148484] [2022-01-18 01:21:33,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874148484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:33,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:33,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:21:33,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193028254] [2022-01-18 01:21:33,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:33,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:21:33,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:33,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:21:33,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:33,490 INFO L87 Difference]: Start difference. First operand 20364 states and 66466 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:34,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:34,179 INFO L93 Difference]: Finished difference Result 37541 states and 124764 transitions. [2022-01-18 01:21:34,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 01:21:34,180 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:34,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:34,264 INFO L225 Difference]: With dead ends: 37541 [2022-01-18 01:21:34,264 INFO L226 Difference]: Without dead ends: 36585 [2022-01-18 01:21:34,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:21:34,265 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 527 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:34,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 1155 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 01:21:34,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36585 states. [2022-01-18 01:21:34,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36585 to 22994. [2022-01-18 01:21:34,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22994 states, 22993 states have (on average 3.274170399686861) internal successors, (75283), 22993 states have internal predecessors, (75283), 0 states have call successors, (0), 0 states 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 01:21:35,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22994 states to 22994 states and 75283 transitions. [2022-01-18 01:21:35,021 INFO L78 Accepts]: Start accepts. Automaton has 22994 states and 75283 transitions. Word has length 134 [2022-01-18 01:21:35,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:35,021 INFO L470 AbstractCegarLoop]: Abstraction has 22994 states and 75283 transitions. [2022-01-18 01:21:35,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:35,021 INFO L276 IsEmpty]: Start isEmpty. Operand 22994 states and 75283 transitions. [2022-01-18 01:21:35,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:35,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:35,056 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, 1, 1, 1, 1, 1, 1, 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 01:21:35,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 01:21:35,056 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:35,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:35,057 INFO L85 PathProgramCache]: Analyzing trace with hash -774897258, now seen corresponding path program 28 times [2022-01-18 01:21:35,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:35,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273323869] [2022-01-18 01:21:35,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:35,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:35,256 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 01:21:35,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:35,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273323869] [2022-01-18 01:21:35,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273323869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:35,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:35,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:21:35,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63007165] [2022-01-18 01:21:35,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:35,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:21:35,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:35,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:21:35,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:35,258 INFO L87 Difference]: Start difference. First operand 22994 states and 75283 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:36,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:36,172 INFO L93 Difference]: Finished difference Result 33496 states and 110441 transitions. [2022-01-18 01:21:36,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-18 01:21:36,173 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:36,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:36,250 INFO L225 Difference]: With dead ends: 33496 [2022-01-18 01:21:36,250 INFO L226 Difference]: Without dead ends: 32596 [2022-01-18 01:21:36,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2022-01-18 01:21:36,251 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 379 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:36,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 1991 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 01:21:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32596 states. [2022-01-18 01:21:36,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32596 to 23982. [2022-01-18 01:21:36,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23982 states, 23981 states have (on average 3.265710354030274) internal successors, (78315), 23981 states have internal predecessors, (78315), 0 states have call successors, (0), 0 states 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 01:21:37,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23982 states to 23982 states and 78315 transitions. [2022-01-18 01:21:37,006 INFO L78 Accepts]: Start accepts. Automaton has 23982 states and 78315 transitions. Word has length 134 [2022-01-18 01:21:37,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:37,006 INFO L470 AbstractCegarLoop]: Abstraction has 23982 states and 78315 transitions. [2022-01-18 01:21:37,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:37,006 INFO L276 IsEmpty]: Start isEmpty. Operand 23982 states and 78315 transitions. [2022-01-18 01:21:37,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:37,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:37,047 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, 1, 1, 1, 1, 1, 1, 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 01:21:37,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 01:21:37,047 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:37,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1909831146, now seen corresponding path program 29 times [2022-01-18 01:21:37,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:37,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248260254] [2022-01-18 01:21:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:37,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:37,235 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 01:21:37,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:37,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248260254] [2022-01-18 01:21:37,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248260254] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:37,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:37,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 01:21:37,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346643919] [2022-01-18 01:21:37,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:37,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 01:21:37,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:37,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 01:21:37,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 01:21:37,237 INFO L87 Difference]: Start difference. First operand 23982 states and 78315 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:37,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:37,565 INFO L93 Difference]: Finished difference Result 25386 states and 83593 transitions. [2022-01-18 01:21:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 01:21:37,565 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:37,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:37,626 INFO L225 Difference]: With dead ends: 25386 [2022-01-18 01:21:37,627 INFO L226 Difference]: Without dead ends: 25386 [2022-01-18 01:21:37,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:21:37,627 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 168 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:37,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 614 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:37,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25386 states. [2022-01-18 01:21:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25386 to 21732. [2022-01-18 01:21:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21732 states, 21731 states have (on average 3.275643090515853) internal successors, (71183), 21731 states have internal predecessors, (71183), 0 states have call successors, (0), 0 states 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 01:21:38,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21732 states to 21732 states and 71183 transitions. [2022-01-18 01:21:38,028 INFO L78 Accepts]: Start accepts. Automaton has 21732 states and 71183 transitions. Word has length 134 [2022-01-18 01:21:38,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:38,028 INFO L470 AbstractCegarLoop]: Abstraction has 21732 states and 71183 transitions. [2022-01-18 01:21:38,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 21732 states and 71183 transitions. [2022-01-18 01:21:38,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:38,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:38,207 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, 1, 1, 1, 1, 1, 1, 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 01:21:38,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 01:21:38,207 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:38,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:38,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1899678544, now seen corresponding path program 30 times [2022-01-18 01:21:38,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:38,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990449704] [2022-01-18 01:21:38,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:38,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:38,378 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 01:21:38,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:38,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990449704] [2022-01-18 01:21:38,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990449704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:38,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:38,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 01:21:38,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708831950] [2022-01-18 01:21:38,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:38,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 01:21:38,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:38,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 01:21:38,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 01:21:38,380 INFO L87 Difference]: Start difference. First operand 21732 states and 71183 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:38,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:38,629 INFO L93 Difference]: Finished difference Result 24390 states and 79374 transitions. [2022-01-18 01:21:38,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:21:38,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:38,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:38,678 INFO L225 Difference]: With dead ends: 24390 [2022-01-18 01:21:38,678 INFO L226 Difference]: Without dead ends: 23808 [2022-01-18 01:21:38,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:38,679 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 190 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:38,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 640 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:21:38,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23808 states. [2022-01-18 01:21:38,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23808 to 21740. [2022-01-18 01:21:38,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21740 states, 21739 states have (on average 3.275633653801923) internal successors, (71209), 21739 states have internal predecessors, (71209), 0 states have call successors, (0), 0 states 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 01:21:39,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21740 states to 21740 states and 71209 transitions. [2022-01-18 01:21:39,033 INFO L78 Accepts]: Start accepts. Automaton has 21740 states and 71209 transitions. Word has length 134 [2022-01-18 01:21:39,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:39,034 INFO L470 AbstractCegarLoop]: Abstraction has 21740 states and 71209 transitions. [2022-01-18 01:21:39,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:39,034 INFO L276 IsEmpty]: Start isEmpty. Operand 21740 states and 71209 transitions. [2022-01-18 01:21:39,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:39,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:39,067 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, 1, 1, 1, 1, 1, 1, 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 01:21:39,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 01:21:39,068 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:39,068 INFO L85 PathProgramCache]: Analyzing trace with hash -665063052, now seen corresponding path program 31 times [2022-01-18 01:21:39,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:39,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578066118] [2022-01-18 01:21:39,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:39,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:39,189 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 01:21:39,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:39,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578066118] [2022-01-18 01:21:39,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578066118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:39,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:39,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:21:39,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251536443] [2022-01-18 01:21:39,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:39,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:21:39,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:39,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:21:39,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:21:39,191 INFO L87 Difference]: Start difference. First operand 21740 states and 71209 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:39,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:39,534 INFO L93 Difference]: Finished difference Result 27028 states and 87767 transitions. [2022-01-18 01:21:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 01:21:39,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:39,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:39,719 INFO L225 Difference]: With dead ends: 27028 [2022-01-18 01:21:39,719 INFO L226 Difference]: Without dead ends: 26268 [2022-01-18 01:21:39,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:39,720 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 340 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:39,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 744 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:39,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26268 states. [2022-01-18 01:21:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26268 to 23028. [2022-01-18 01:21:40,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23028 states, 23027 states have (on average 3.2606505406696487) internal successors, (75083), 23027 states have internal predecessors, (75083), 0 states have call successors, (0), 0 states 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 01:21:40,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23028 states to 23028 states and 75083 transitions. [2022-01-18 01:21:40,092 INFO L78 Accepts]: Start accepts. Automaton has 23028 states and 75083 transitions. Word has length 134 [2022-01-18 01:21:40,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:40,092 INFO L470 AbstractCegarLoop]: Abstraction has 23028 states and 75083 transitions. [2022-01-18 01:21:40,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:40,092 INFO L276 IsEmpty]: Start isEmpty. Operand 23028 states and 75083 transitions. [2022-01-18 01:21:40,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:40,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:40,130 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, 1, 1, 1, 1, 1, 1, 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 01:21:40,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 01:21:40,130 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:40,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:40,131 INFO L85 PathProgramCache]: Analyzing trace with hash 67359486, now seen corresponding path program 32 times [2022-01-18 01:21:40,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:40,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487817052] [2022-01-18 01:21:40,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:40,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:40,313 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 01:21:40,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:40,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487817052] [2022-01-18 01:21:40,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487817052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:40,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:40,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:21:40,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440030688] [2022-01-18 01:21:40,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:40,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:21:40,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:40,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:21:40,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:21:40,315 INFO L87 Difference]: Start difference. First operand 23028 states and 75083 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:40,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:40,828 INFO L93 Difference]: Finished difference Result 32700 states and 106774 transitions. [2022-01-18 01:21:40,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 01:21:40,828 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:40,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:40,907 INFO L225 Difference]: With dead ends: 32700 [2022-01-18 01:21:40,907 INFO L226 Difference]: Without dead ends: 31902 [2022-01-18 01:21:40,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2022-01-18 01:21:40,908 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 343 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:40,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 1312 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:40,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31902 states. [2022-01-18 01:21:41,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31902 to 24448. [2022-01-18 01:21:41,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24448 states, 24447 states have (on average 3.249396653986174) internal successors, (79438), 24447 states have internal predecessors, (79438), 0 states have call successors, (0), 0 states 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 01:21:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24448 states to 24448 states and 79438 transitions. [2022-01-18 01:21:41,508 INFO L78 Accepts]: Start accepts. Automaton has 24448 states and 79438 transitions. Word has length 134 [2022-01-18 01:21:41,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:41,508 INFO L470 AbstractCegarLoop]: Abstraction has 24448 states and 79438 transitions. [2022-01-18 01:21:41,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:41,508 INFO L276 IsEmpty]: Start isEmpty. Operand 24448 states and 79438 transitions. [2022-01-18 01:21:41,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:41,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:41,551 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, 1, 1, 1, 1, 1, 1, 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 01:21:41,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 01:21:41,551 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:41,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:41,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1990848802, now seen corresponding path program 33 times [2022-01-18 01:21:41,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:41,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95885289] [2022-01-18 01:21:41,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:41,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:41,673 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 01:21:41,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:41,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95885289] [2022-01-18 01:21:41,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95885289] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:41,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:41,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:41,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085999488] [2022-01-18 01:21:41,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:41,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:41,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:41,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:41,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:41,675 INFO L87 Difference]: Start difference. First operand 24448 states and 79438 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:42,115 INFO L93 Difference]: Finished difference Result 37853 states and 122590 transitions. [2022-01-18 01:21:42,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:21:42,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:42,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:42,195 INFO L225 Difference]: With dead ends: 37853 [2022-01-18 01:21:42,196 INFO L226 Difference]: Without dead ends: 36256 [2022-01-18 01:21:42,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:21:42,196 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 541 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:42,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [541 Valid, 889 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:42,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36256 states. [2022-01-18 01:21:42,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36256 to 23270. [2022-01-18 01:21:42,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23270 states, 23269 states have (on average 3.2376982251063646) internal successors, (75338), 23269 states have internal predecessors, (75338), 0 states have call successors, (0), 0 states 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 01:21:42,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23270 states to 23270 states and 75338 transitions. [2022-01-18 01:21:42,918 INFO L78 Accepts]: Start accepts. Automaton has 23270 states and 75338 transitions. Word has length 134 [2022-01-18 01:21:42,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:42,918 INFO L470 AbstractCegarLoop]: Abstraction has 23270 states and 75338 transitions. [2022-01-18 01:21:42,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:42,918 INFO L276 IsEmpty]: Start isEmpty. Operand 23270 states and 75338 transitions. [2022-01-18 01:21:42,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:42,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:42,952 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, 1, 1, 1, 1, 1, 1, 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 01:21:42,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 01:21:42,953 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:42,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:42,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1988824622, now seen corresponding path program 34 times [2022-01-18 01:21:42,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:42,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001786133] [2022-01-18 01:21:42,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:42,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:43,295 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 01:21:43,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:43,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001786133] [2022-01-18 01:21:43,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001786133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:43,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:43,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:21:43,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296759730] [2022-01-18 01:21:43,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:43,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:21:43,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:43,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:21:43,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:43,296 INFO L87 Difference]: Start difference. First operand 23270 states and 75338 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:44,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:44,440 INFO L93 Difference]: Finished difference Result 43075 states and 138987 transitions. [2022-01-18 01:21:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-18 01:21:44,440 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:44,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:44,768 INFO L225 Difference]: With dead ends: 43075 [2022-01-18 01:21:44,769 INFO L226 Difference]: Without dead ends: 42835 [2022-01-18 01:21:44,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2022-01-18 01:21:44,769 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 944 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 1728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:44,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [944 Valid, 2345 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 01:21:44,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42835 states. [2022-01-18 01:21:45,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42835 to 23414. [2022-01-18 01:21:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23414 states, 23413 states have (on average 3.236919660017939) internal successors, (75786), 23413 states have internal predecessors, (75786), 0 states have call successors, (0), 0 states 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 01:21:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23414 states to 23414 states and 75786 transitions. [2022-01-18 01:21:45,245 INFO L78 Accepts]: Start accepts. Automaton has 23414 states and 75786 transitions. Word has length 134 [2022-01-18 01:21:45,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:45,245 INFO L470 AbstractCegarLoop]: Abstraction has 23414 states and 75786 transitions. [2022-01-18 01:21:45,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:45,245 INFO L276 IsEmpty]: Start isEmpty. Operand 23414 states and 75786 transitions. [2022-01-18 01:21:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:45,282 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:45,282 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, 1, 1, 1, 1, 1, 1, 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 01:21:45,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 01:21:45,282 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:45,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:45,282 INFO L85 PathProgramCache]: Analyzing trace with hash -652801780, now seen corresponding path program 35 times [2022-01-18 01:21:45,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:45,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567256503] [2022-01-18 01:21:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:45,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:45,448 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 01:21:45,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:45,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567256503] [2022-01-18 01:21:45,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567256503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:45,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:45,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 01:21:45,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696276414] [2022-01-18 01:21:45,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:45,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 01:21:45,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:45,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 01:21:45,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 01:21:45,450 INFO L87 Difference]: Start difference. First operand 23414 states and 75786 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:45,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:45,711 INFO L93 Difference]: Finished difference Result 25826 states and 83039 transitions. [2022-01-18 01:21:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 01:21:45,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:45,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:45,766 INFO L225 Difference]: With dead ends: 25826 [2022-01-18 01:21:45,767 INFO L226 Difference]: Without dead ends: 25356 [2022-01-18 01:21:45,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:21:45,767 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 141 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:45,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 745 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:45,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25356 states. [2022-01-18 01:21:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25356 to 23352. [2022-01-18 01:21:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23352 states, 23351 states have (on average 3.2376343625540662) internal successors, (75602), 23351 states have internal predecessors, (75602), 0 states have call successors, (0), 0 states 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 01:21:46,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23352 states to 23352 states and 75602 transitions. [2022-01-18 01:21:46,344 INFO L78 Accepts]: Start accepts. Automaton has 23352 states and 75602 transitions. Word has length 134 [2022-01-18 01:21:46,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:46,344 INFO L470 AbstractCegarLoop]: Abstraction has 23352 states and 75602 transitions. [2022-01-18 01:21:46,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:46,345 INFO L276 IsEmpty]: Start isEmpty. Operand 23352 states and 75602 transitions. [2022-01-18 01:21:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:46,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:46,380 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, 1, 1, 1, 1, 1, 1, 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 01:21:46,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 01:21:46,380 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:46,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash -328300614, now seen corresponding path program 36 times [2022-01-18 01:21:46,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:46,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143792517] [2022-01-18 01:21:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:46,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:46,562 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 01:21:46,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:46,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143792517] [2022-01-18 01:21:46,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143792517] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:46,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:46,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:21:46,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082333944] [2022-01-18 01:21:46,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:46,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:21:46,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:21:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:46,563 INFO L87 Difference]: Start difference. First operand 23352 states and 75602 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:47,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:47,007 INFO L93 Difference]: Finished difference Result 29628 states and 96081 transitions. [2022-01-18 01:21:47,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:21:47,008 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:47,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:47,075 INFO L225 Difference]: With dead ends: 29628 [2022-01-18 01:21:47,075 INFO L226 Difference]: Without dead ends: 29628 [2022-01-18 01:21:47,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:21:47,076 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 273 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:47,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1092 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:47,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29628 states. [2022-01-18 01:21:47,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29628 to 23640. [2022-01-18 01:21:47,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23640 states, 23639 states have (on average 3.2398155590338003) internal successors, (76586), 23639 states have internal predecessors, (76586), 0 states have call successors, (0), 0 states 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 01:21:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23640 states to 23640 states and 76586 transitions. [2022-01-18 01:21:47,675 INFO L78 Accepts]: Start accepts. Automaton has 23640 states and 76586 transitions. Word has length 134 [2022-01-18 01:21:47,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:47,676 INFO L470 AbstractCegarLoop]: Abstraction has 23640 states and 76586 transitions. [2022-01-18 01:21:47,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand 23640 states and 76586 transitions. [2022-01-18 01:21:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:47,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:47,712 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, 1, 1, 1, 1, 1, 1, 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 01:21:47,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 01:21:47,712 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:47,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:47,712 INFO L85 PathProgramCache]: Analyzing trace with hash 852043136, now seen corresponding path program 37 times [2022-01-18 01:21:47,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:47,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551782922] [2022-01-18 01:21:47,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:47,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:47,920 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 01:21:47,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:47,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551782922] [2022-01-18 01:21:47,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551782922] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:47,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:47,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:47,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328970664] [2022-01-18 01:21:47,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:47,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:47,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:47,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:47,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:47,922 INFO L87 Difference]: Start difference. First operand 23640 states and 76586 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:48,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:48,255 INFO L93 Difference]: Finished difference Result 34227 states and 111327 transitions. [2022-01-18 01:21:48,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:21:48,256 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:48,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:48,330 INFO L225 Difference]: With dead ends: 34227 [2022-01-18 01:21:48,331 INFO L226 Difference]: Without dead ends: 32681 [2022-01-18 01:21:48,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:21:48,331 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 217 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:48,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 852 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32681 states. [2022-01-18 01:21:48,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32681 to 25962. [2022-01-18 01:21:48,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25962 states, 25961 states have (on average 3.23662416701976) internal successors, (84026), 25961 states have internal predecessors, (84026), 0 states have call successors, (0), 0 states 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 01:21:49,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25962 states to 25962 states and 84026 transitions. [2022-01-18 01:21:49,025 INFO L78 Accepts]: Start accepts. Automaton has 25962 states and 84026 transitions. Word has length 134 [2022-01-18 01:21:49,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:49,026 INFO L470 AbstractCegarLoop]: Abstraction has 25962 states and 84026 transitions. [2022-01-18 01:21:49,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:49,026 INFO L276 IsEmpty]: Start isEmpty. Operand 25962 states and 84026 transitions. [2022-01-18 01:21:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:49,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:49,071 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, 1, 1, 1, 1, 1, 1, 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 01:21:49,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 01:21:49,071 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:49,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:49,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1304860150, now seen corresponding path program 38 times [2022-01-18 01:21:49,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:49,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272987033] [2022-01-18 01:21:49,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:49,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:49,176 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 01:21:49,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:49,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272987033] [2022-01-18 01:21:49,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272987033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:49,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:49,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:21:49,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887270671] [2022-01-18 01:21:49,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:49,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:21:49,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:49,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:21:49,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:21:49,178 INFO L87 Difference]: Start difference. First operand 25962 states and 84026 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:49,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:49,554 INFO L93 Difference]: Finished difference Result 30647 states and 98256 transitions. [2022-01-18 01:21:49,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:21:49,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:49,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:49,639 INFO L225 Difference]: With dead ends: 30647 [2022-01-18 01:21:49,639 INFO L226 Difference]: Without dead ends: 27015 [2022-01-18 01:21:49,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:21:49,640 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 406 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:49,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 579 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:49,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27015 states. [2022-01-18 01:21:50,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27015 to 22108. [2022-01-18 01:21:50,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22108 states, 22107 states have (on average 3.219116117066992) internal successors, (71165), 22107 states have internal predecessors, (71165), 0 states have call successors, (0), 0 states 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 01:21:50,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22108 states to 22108 states and 71165 transitions. [2022-01-18 01:21:50,457 INFO L78 Accepts]: Start accepts. Automaton has 22108 states and 71165 transitions. Word has length 134 [2022-01-18 01:21:50,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:50,457 INFO L470 AbstractCegarLoop]: Abstraction has 22108 states and 71165 transitions. [2022-01-18 01:21:50,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:50,462 INFO L276 IsEmpty]: Start isEmpty. Operand 22108 states and 71165 transitions. [2022-01-18 01:21:50,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:50,500 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:50,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:50,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 01:21:50,501 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:50,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:50,501 INFO L85 PathProgramCache]: Analyzing trace with hash -978686880, now seen corresponding path program 39 times [2022-01-18 01:21:50,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:50,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334620633] [2022-01-18 01:21:50,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:50,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:50,671 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 01:21:50,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:50,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334620633] [2022-01-18 01:21:50,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334620633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:50,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:50,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:50,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780845613] [2022-01-18 01:21:50,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:50,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:50,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:50,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:50,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:50,673 INFO L87 Difference]: Start difference. First operand 22108 states and 71165 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:51,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:51,004 INFO L93 Difference]: Finished difference Result 23272 states and 74693 transitions. [2022-01-18 01:21:51,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:21:51,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:51,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:51,054 INFO L225 Difference]: With dead ends: 23272 [2022-01-18 01:21:51,054 INFO L226 Difference]: Without dead ends: 22600 [2022-01-18 01:21:51,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:21:51,054 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 222 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:51,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 980 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:51,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22600 states. [2022-01-18 01:21:51,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22600 to 22052. [2022-01-18 01:21:51,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22052 states, 22051 states have (on average 3.217767901682463) internal successors, (70955), 22051 states have internal predecessors, (70955), 0 states have call successors, (0), 0 states 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 01:21:51,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22052 states to 22052 states and 70955 transitions. [2022-01-18 01:21:51,411 INFO L78 Accepts]: Start accepts. Automaton has 22052 states and 70955 transitions. Word has length 134 [2022-01-18 01:21:51,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:51,411 INFO L470 AbstractCegarLoop]: Abstraction has 22052 states and 70955 transitions. [2022-01-18 01:21:51,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:51,411 INFO L276 IsEmpty]: Start isEmpty. Operand 22052 states and 70955 transitions. [2022-01-18 01:21:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:51,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:51,446 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, 1, 1, 1, 1, 1, 1, 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 01:21:51,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 01:21:51,446 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:51,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1793566766, now seen corresponding path program 40 times [2022-01-18 01:21:51,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:51,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534452885] [2022-01-18 01:21:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:51,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:51,640 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 01:21:51,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:51,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534452885] [2022-01-18 01:21:51,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534452885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:51,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:51,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:51,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575489442] [2022-01-18 01:21:51,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:51,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:51,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:51,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:51,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:51,642 INFO L87 Difference]: Start difference. First operand 22052 states and 70955 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:51,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:51,907 INFO L93 Difference]: Finished difference Result 22084 states and 71019 transitions. [2022-01-18 01:21:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:21:51,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:51,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:52,214 INFO L225 Difference]: With dead ends: 22084 [2022-01-18 01:21:52,215 INFO L226 Difference]: Without dead ends: 21638 [2022-01-18 01:21:52,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:52,216 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 138 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:52,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 799 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:52,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21638 states. [2022-01-18 01:21:52,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21638 to 21606. [2022-01-18 01:21:52,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21606 states, 21605 states have (on average 3.2267993520018514) internal successors, (69715), 21605 states have internal predecessors, (69715), 0 states have call successors, (0), 0 states 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 01:21:52,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21606 states to 21606 states and 69715 transitions. [2022-01-18 01:21:52,515 INFO L78 Accepts]: Start accepts. Automaton has 21606 states and 69715 transitions. Word has length 134 [2022-01-18 01:21:52,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:52,515 INFO L470 AbstractCegarLoop]: Abstraction has 21606 states and 69715 transitions. [2022-01-18 01:21:52,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:52,515 INFO L276 IsEmpty]: Start isEmpty. Operand 21606 states and 69715 transitions. [2022-01-18 01:21:52,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:52,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:52,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:52,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 01:21:52,549 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:52,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:52,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1225752588, now seen corresponding path program 41 times [2022-01-18 01:21:52,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:52,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251067916] [2022-01-18 01:21:52,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:52,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:52,689 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 01:21:52,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:52,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251067916] [2022-01-18 01:21:52,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251067916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:52,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:52,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:52,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76886285] [2022-01-18 01:21:52,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:52,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:52,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:52,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:52,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:52,691 INFO L87 Difference]: Start difference. First operand 21606 states and 69715 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:53,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:53,103 INFO L93 Difference]: Finished difference Result 29983 states and 95796 transitions. [2022-01-18 01:21:53,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 01:21:53,103 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:53,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:53,164 INFO L225 Difference]: With dead ends: 29983 [2022-01-18 01:21:53,164 INFO L226 Difference]: Without dead ends: 28781 [2022-01-18 01:21:53,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:53,164 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 245 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:53,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 1095 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:53,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28781 states. [2022-01-18 01:21:53,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28781 to 19968. [2022-01-18 01:21:53,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19968 states, 19967 states have (on average 3.2451044222967895) internal successors, (64795), 19967 states have internal predecessors, (64795), 0 states have call successors, (0), 0 states 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 01:21:53,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19968 states to 19968 states and 64795 transitions. [2022-01-18 01:21:53,681 INFO L78 Accepts]: Start accepts. Automaton has 19968 states and 64795 transitions. Word has length 134 [2022-01-18 01:21:53,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:53,682 INFO L470 AbstractCegarLoop]: Abstraction has 19968 states and 64795 transitions. [2022-01-18 01:21:53,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:53,682 INFO L276 IsEmpty]: Start isEmpty. Operand 19968 states and 64795 transitions. [2022-01-18 01:21:53,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:53,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:53,712 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, 1, 1, 1, 1, 1, 1, 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 01:21:53,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 01:21:53,712 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:53,713 INFO L85 PathProgramCache]: Analyzing trace with hash -712963718, now seen corresponding path program 42 times [2022-01-18 01:21:53,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:53,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155444009] [2022-01-18 01:21:53,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:53,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:53,816 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 01:21:53,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:53,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155444009] [2022-01-18 01:21:53,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155444009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:53,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:53,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:53,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613621668] [2022-01-18 01:21:53,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:53,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:53,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:53,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:53,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:53,818 INFO L87 Difference]: Start difference. First operand 19968 states and 64795 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:54,214 INFO L93 Difference]: Finished difference Result 29096 states and 92963 transitions. [2022-01-18 01:21:54,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 01:21:54,215 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:54,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:54,277 INFO L225 Difference]: With dead ends: 29096 [2022-01-18 01:21:54,278 INFO L226 Difference]: Without dead ends: 29096 [2022-01-18 01:21:54,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2022-01-18 01:21:54,278 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 668 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:54,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [668 Valid, 796 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:21:54,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29096 states. [2022-01-18 01:21:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29096 to 22227. [2022-01-18 01:21:54,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22227 states, 22226 states have (on average 3.2232970395032843) internal successors, (71641), 22226 states have internal predecessors, (71641), 0 states have call successors, (0), 0 states 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 01:21:54,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22227 states to 22227 states and 71641 transitions. [2022-01-18 01:21:54,927 INFO L78 Accepts]: Start accepts. Automaton has 22227 states and 71641 transitions. Word has length 134 [2022-01-18 01:21:54,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:54,927 INFO L470 AbstractCegarLoop]: Abstraction has 22227 states and 71641 transitions. [2022-01-18 01:21:54,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:54,927 INFO L276 IsEmpty]: Start isEmpty. Operand 22227 states and 71641 transitions. [2022-01-18 01:21:54,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:54,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:54,968 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, 1, 1, 1, 1, 1, 1, 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 01:21:54,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 01:21:54,968 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:54,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:54,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1108982628, now seen corresponding path program 43 times [2022-01-18 01:21:54,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:54,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960886560] [2022-01-18 01:21:54,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:54,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:55,123 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 01:21:55,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:55,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960886560] [2022-01-18 01:21:55,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960886560] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:55,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:55,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:21:55,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516421641] [2022-01-18 01:21:55,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:55,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:21:55,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:55,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:21:55,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:55,126 INFO L87 Difference]: Start difference. First operand 22227 states and 71641 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:55,784 INFO L93 Difference]: Finished difference Result 28477 states and 91091 transitions. [2022-01-18 01:21:55,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:21:55,784 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:55,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:55,837 INFO L225 Difference]: With dead ends: 28477 [2022-01-18 01:21:55,838 INFO L226 Difference]: Without dead ends: 24403 [2022-01-18 01:21:55,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-01-18 01:21:55,838 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 534 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:55,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 1991 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 01:21:55,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24403 states. [2022-01-18 01:21:56,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24403 to 19809. [2022-01-18 01:21:56,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19809 states, 19808 states have (on average 3.2033521809369954) internal successors, (63452), 19808 states have internal predecessors, (63452), 0 states have call successors, (0), 0 states 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 01:21:56,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19809 states to 19809 states and 63452 transitions. [2022-01-18 01:21:56,211 INFO L78 Accepts]: Start accepts. Automaton has 19809 states and 63452 transitions. Word has length 134 [2022-01-18 01:21:56,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:56,212 INFO L470 AbstractCegarLoop]: Abstraction has 19809 states and 63452 transitions. [2022-01-18 01:21:56,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:56,212 INFO L276 IsEmpty]: Start isEmpty. Operand 19809 states and 63452 transitions. [2022-01-18 01:21:56,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:56,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:56,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:56,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 01:21:56,244 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:56,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:56,244 INFO L85 PathProgramCache]: Analyzing trace with hash 742725574, now seen corresponding path program 44 times [2022-01-18 01:21:56,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:56,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121123710] [2022-01-18 01:21:56,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:56,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:56,402 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 01:21:56,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:56,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121123710] [2022-01-18 01:21:56,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121123710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:56,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:56,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:21:56,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26249433] [2022-01-18 01:21:56,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:56,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:21:56,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:56,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:21:56,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:21:56,404 INFO L87 Difference]: Start difference. First operand 19809 states and 63452 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:56,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:56,869 INFO L93 Difference]: Finished difference Result 26857 states and 85939 transitions. [2022-01-18 01:21:56,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:21:56,869 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:56,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:57,153 INFO L225 Difference]: With dead ends: 26857 [2022-01-18 01:21:57,154 INFO L226 Difference]: Without dead ends: 26331 [2022-01-18 01:21:57,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:21:57,154 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 300 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:57,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 1079 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:57,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26331 states. [2022-01-18 01:21:57,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26331 to 18391. [2022-01-18 01:21:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18391 states, 18390 states have (on average 3.1963567156063077) internal successors, (58781), 18390 states have internal predecessors, (58781), 0 states have call successors, (0), 0 states 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 01:21:57,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18391 states to 18391 states and 58781 transitions. [2022-01-18 01:21:57,440 INFO L78 Accepts]: Start accepts. Automaton has 18391 states and 58781 transitions. Word has length 134 [2022-01-18 01:21:57,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:57,440 INFO L470 AbstractCegarLoop]: Abstraction has 18391 states and 58781 transitions. [2022-01-18 01:21:57,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:57,440 INFO L276 IsEmpty]: Start isEmpty. Operand 18391 states and 58781 transitions. [2022-01-18 01:21:57,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:57,467 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:57,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:57,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 01:21:57,468 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:57,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:57,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1740413454, now seen corresponding path program 45 times [2022-01-18 01:21:57,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:57,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939319854] [2022-01-18 01:21:57,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:57,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:57,647 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 01:21:57,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:57,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939319854] [2022-01-18 01:21:57,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939319854] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:57,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:57,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:21:57,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63583912] [2022-01-18 01:21:57,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:57,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:21:57,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:21:57,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:21:57,649 INFO L87 Difference]: Start difference. First operand 18391 states and 58781 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:58,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:58,118 INFO L93 Difference]: Finished difference Result 19463 states and 61977 transitions. [2022-01-18 01:21:58,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:21:58,119 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:58,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:58,157 INFO L225 Difference]: With dead ends: 19463 [2022-01-18 01:21:58,157 INFO L226 Difference]: Without dead ends: 19463 [2022-01-18 01:21:58,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:21:58,159 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 251 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:58,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 1261 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:58,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19463 states. [2022-01-18 01:21:58,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19463 to 18535. [2022-01-18 01:21:58,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18535 states, 18534 states have (on average 3.195262760332362) internal successors, (59221), 18534 states have internal predecessors, (59221), 0 states have call successors, (0), 0 states 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 01:21:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18535 states to 18535 states and 59221 transitions. [2022-01-18 01:21:58,689 INFO L78 Accepts]: Start accepts. Automaton has 18535 states and 59221 transitions. Word has length 134 [2022-01-18 01:21:58,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:58,689 INFO L470 AbstractCegarLoop]: Abstraction has 18535 states and 59221 transitions. [2022-01-18 01:21:58,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:58,690 INFO L276 IsEmpty]: Start isEmpty. Operand 18535 states and 59221 transitions. [2022-01-18 01:21:58,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:58,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:58,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:21:58,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 01:21:58,717 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:58,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:58,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1796426514, now seen corresponding path program 46 times [2022-01-18 01:21:58,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:58,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337404520] [2022-01-18 01:21:58,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:58,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:58,861 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 01:21:58,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:58,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337404520] [2022-01-18 01:21:58,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337404520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:58,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:58,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:21:58,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340042603] [2022-01-18 01:21:58,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:58,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:21:58,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:58,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:21:58,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:21:58,862 INFO L87 Difference]: Start difference. First operand 18535 states and 59221 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:59,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:21:59,329 INFO L93 Difference]: Finished difference Result 23111 states and 73274 transitions. [2022-01-18 01:21:59,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:21:59,330 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:21:59,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:21:59,369 INFO L225 Difference]: With dead ends: 23111 [2022-01-18 01:21:59,370 INFO L226 Difference]: Without dead ends: 20221 [2022-01-18 01:21:59,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-01-18 01:21:59,370 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 547 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:21:59,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 1697 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:21:59,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20221 states. [2022-01-18 01:21:59,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20221 to 17119. [2022-01-18 01:21:59,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17119 states, 17118 states have (on average 3.1683023717724033) internal successors, (54235), 17118 states have internal predecessors, (54235), 0 states have call successors, (0), 0 states 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 01:21:59,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17119 states to 17119 states and 54235 transitions. [2022-01-18 01:21:59,637 INFO L78 Accepts]: Start accepts. Automaton has 17119 states and 54235 transitions. Word has length 134 [2022-01-18 01:21:59,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:21:59,637 INFO L470 AbstractCegarLoop]: Abstraction has 17119 states and 54235 transitions. [2022-01-18 01:21:59,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:21:59,637 INFO L276 IsEmpty]: Start isEmpty. Operand 17119 states and 54235 transitions. [2022-01-18 01:21:59,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:21:59,662 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:21:59,663 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, 1, 1, 1, 1, 1, 1, 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 01:21:59,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 01:21:59,663 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:21:59,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:21:59,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1810074508, now seen corresponding path program 47 times [2022-01-18 01:21:59,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:21:59,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728418301] [2022-01-18 01:21:59,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:21:59,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:21:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:21:59,844 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 01:21:59,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:21:59,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728418301] [2022-01-18 01:21:59,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728418301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:21:59,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:21:59,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:21:59,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081708420] [2022-01-18 01:21:59,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:21:59,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:21:59,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:21:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:21:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:21:59,845 INFO L87 Difference]: Start difference. First operand 17119 states and 54235 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:00,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:00,069 INFO L93 Difference]: Finished difference Result 17895 states and 56537 transitions. [2022-01-18 01:22:00,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:22:00,069 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:00,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:00,103 INFO L225 Difference]: With dead ends: 17895 [2022-01-18 01:22:00,103 INFO L226 Difference]: Without dead ends: 17283 [2022-01-18 01:22:00,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:00,103 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 141 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:00,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 716 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17283 states. [2022-01-18 01:22:00,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17283 to 17163. [2022-01-18 01:22:00,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17163 states, 17162 states have (on average 3.1660645612399487) internal successors, (54336), 17162 states have internal predecessors, (54336), 0 states have call successors, (0), 0 states 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 01:22:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17163 states to 17163 states and 54336 transitions. [2022-01-18 01:22:00,469 INFO L78 Accepts]: Start accepts. Automaton has 17163 states and 54336 transitions. Word has length 134 [2022-01-18 01:22:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:00,469 INFO L470 AbstractCegarLoop]: Abstraction has 17163 states and 54336 transitions. [2022-01-18 01:22:00,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:00,469 INFO L276 IsEmpty]: Start isEmpty. Operand 17163 states and 54336 transitions. [2022-01-18 01:22:00,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:00,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:00,495 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, 1, 1, 1, 1, 1, 1, 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 01:22:00,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 01:22:00,496 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:00,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:00,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1078224428, now seen corresponding path program 48 times [2022-01-18 01:22:00,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:00,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729816841] [2022-01-18 01:22:00,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:00,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:00,649 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 01:22:00,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:00,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729816841] [2022-01-18 01:22:00,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729816841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:00,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:00,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:22:00,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500211701] [2022-01-18 01:22:00,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:00,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:22:00,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:00,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:22:00,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:00,650 INFO L87 Difference]: Start difference. First operand 17163 states and 54336 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:01,113 INFO L93 Difference]: Finished difference Result 21063 states and 66250 transitions. [2022-01-18 01:22:01,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:22:01,114 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:01,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:01,151 INFO L225 Difference]: With dead ends: 21063 [2022-01-18 01:22:01,151 INFO L226 Difference]: Without dead ends: 19877 [2022-01-18 01:22:01,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-01-18 01:22:01,152 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 538 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:01,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 1521 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:22:01,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19877 states. [2022-01-18 01:22:01,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19877 to 16763. [2022-01-18 01:22:01,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16763 states, 16762 states have (on average 3.1590502326691325) internal successors, (52952), 16762 states have internal predecessors, (52952), 0 states have call successors, (0), 0 states 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 01:22:01,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16763 states to 16763 states and 52952 transitions. [2022-01-18 01:22:01,417 INFO L78 Accepts]: Start accepts. Automaton has 16763 states and 52952 transitions. Word has length 134 [2022-01-18 01:22:01,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:01,417 INFO L470 AbstractCegarLoop]: Abstraction has 16763 states and 52952 transitions. [2022-01-18 01:22:01,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:01,418 INFO L276 IsEmpty]: Start isEmpty. Operand 16763 states and 52952 transitions. [2022-01-18 01:22:01,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:01,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:01,442 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, 1, 1, 1, 1, 1, 1, 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 01:22:01,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 01:22:01,442 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:01,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:01,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1618028618, now seen corresponding path program 49 times [2022-01-18 01:22:01,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:01,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597494336] [2022-01-18 01:22:01,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:01,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:01,615 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 01:22:01,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:01,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597494336] [2022-01-18 01:22:01,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597494336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:01,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:01,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:01,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958887892] [2022-01-18 01:22:01,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:01,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:01,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:01,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:01,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:01,616 INFO L87 Difference]: Start difference. First operand 16763 states and 52952 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:01,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:01,928 INFO L93 Difference]: Finished difference Result 17399 states and 54797 transitions. [2022-01-18 01:22:01,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:22:01,928 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:01,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:02,047 INFO L225 Difference]: With dead ends: 17399 [2022-01-18 01:22:02,048 INFO L226 Difference]: Without dead ends: 16735 [2022-01-18 01:22:02,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:02,048 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 246 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:02,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 1024 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:02,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16735 states. [2022-01-18 01:22:02,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16735 to 16711. [2022-01-18 01:22:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16711 states, 16710 states have (on average 3.1598444045481746) internal successors, (52801), 16710 states have internal predecessors, (52801), 0 states have call successors, (0), 0 states 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 01:22:02,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16711 states to 16711 states and 52801 transitions. [2022-01-18 01:22:02,331 INFO L78 Accepts]: Start accepts. Automaton has 16711 states and 52801 transitions. Word has length 134 [2022-01-18 01:22:02,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:02,332 INFO L470 AbstractCegarLoop]: Abstraction has 16711 states and 52801 transitions. [2022-01-18 01:22:02,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:02,332 INFO L276 IsEmpty]: Start isEmpty. Operand 16711 states and 52801 transitions. [2022-01-18 01:22:02,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:02,358 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:02,358 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, 1, 1, 1, 1, 1, 1, 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 01:22:02,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 01:22:02,358 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:02,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:02,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1215762510, now seen corresponding path program 50 times [2022-01-18 01:22:02,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:02,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632263443] [2022-01-18 01:22:02,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:02,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:02,561 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 01:22:02,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:02,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632263443] [2022-01-18 01:22:02,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632263443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:02,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:02,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:02,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431669937] [2022-01-18 01:22:02,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:02,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:02,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:02,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:02,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:02,563 INFO L87 Difference]: Start difference. First operand 16711 states and 52801 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:02,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:02,943 INFO L93 Difference]: Finished difference Result 17627 states and 55495 transitions. [2022-01-18 01:22:02,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:22:02,943 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:02,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:02,975 INFO L225 Difference]: With dead ends: 17627 [2022-01-18 01:22:02,976 INFO L226 Difference]: Without dead ends: 17015 [2022-01-18 01:22:02,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:02,976 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 234 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:02,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 1197 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:22:02,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17015 states. [2022-01-18 01:22:03,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17015 to 16779. [2022-01-18 01:22:03,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16779 states, 16778 states have (on average 3.1569912981285015) internal successors, (52968), 16778 states have internal predecessors, (52968), 0 states have call successors, (0), 0 states 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 01:22:03,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16779 states to 16779 states and 52968 transitions. [2022-01-18 01:22:03,222 INFO L78 Accepts]: Start accepts. Automaton has 16779 states and 52968 transitions. Word has length 134 [2022-01-18 01:22:03,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:03,222 INFO L470 AbstractCegarLoop]: Abstraction has 16779 states and 52968 transitions. [2022-01-18 01:22:03,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:03,222 INFO L276 IsEmpty]: Start isEmpty. Operand 16779 states and 52968 transitions. [2022-01-18 01:22:03,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:03,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:03,247 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, 1, 1, 1, 1, 1, 1, 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 01:22:03,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 01:22:03,247 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:03,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:03,247 INFO L85 PathProgramCache]: Analyzing trace with hash -483912430, now seen corresponding path program 51 times [2022-01-18 01:22:03,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:03,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561509414] [2022-01-18 01:22:03,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:03,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:03,435 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 01:22:03,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:03,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561509414] [2022-01-18 01:22:03,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561509414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:03,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:03,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:03,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443697489] [2022-01-18 01:22:03,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:03,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:03,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:03,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:03,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:03,436 INFO L87 Difference]: Start difference. First operand 16779 states and 52968 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:03,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:03,857 INFO L93 Difference]: Finished difference Result 17707 states and 55683 transitions. [2022-01-18 01:22:03,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 01:22:03,858 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:03,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:03,890 INFO L225 Difference]: With dead ends: 17707 [2022-01-18 01:22:03,891 INFO L226 Difference]: Without dead ends: 17051 [2022-01-18 01:22:03,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-01-18 01:22:03,891 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 326 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:03,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 1032 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:22:03,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17051 states. [2022-01-18 01:22:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17051 to 16735. [2022-01-18 01:22:04,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16735 states, 16734 states have (on average 3.157344328911199) internal successors, (52835), 16734 states have internal predecessors, (52835), 0 states have call successors, (0), 0 states 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 01:22:04,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16735 states to 16735 states and 52835 transitions. [2022-01-18 01:22:04,142 INFO L78 Accepts]: Start accepts. Automaton has 16735 states and 52835 transitions. Word has length 134 [2022-01-18 01:22:04,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:04,142 INFO L470 AbstractCegarLoop]: Abstraction has 16735 states and 52835 transitions. [2022-01-18 01:22:04,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:04,142 INFO L276 IsEmpty]: Start isEmpty. Operand 16735 states and 52835 transitions. [2022-01-18 01:22:04,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:04,167 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:04,168 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, 1, 1, 1, 1, 1, 1, 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 01:22:04,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 01:22:04,168 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:04,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash -453718160, now seen corresponding path program 52 times [2022-01-18 01:22:04,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:04,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214343833] [2022-01-18 01:22:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:04,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:04,327 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 01:22:04,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:04,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214343833] [2022-01-18 01:22:04,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214343833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:04,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:04,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:04,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495493472] [2022-01-18 01:22:04,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:04,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:04,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:04,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:04,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:04,328 INFO L87 Difference]: Start difference. First operand 16735 states and 52835 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:04,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:04,579 INFO L93 Difference]: Finished difference Result 17507 states and 55110 transitions. [2022-01-18 01:22:04,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:22:04,579 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:04,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:04,611 INFO L225 Difference]: With dead ends: 17507 [2022-01-18 01:22:04,611 INFO L226 Difference]: Without dead ends: 16817 [2022-01-18 01:22:04,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:04,612 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 231 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:04,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 882 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:04,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16817 states. [2022-01-18 01:22:04,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16817 to 16705. [2022-01-18 01:22:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16705 states, 16704 states have (on average 3.1555914750957856) internal successors, (52711), 16704 states have internal predecessors, (52711), 0 states have call successors, (0), 0 states 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 01:22:04,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16705 states to 16705 states and 52711 transitions. [2022-01-18 01:22:04,862 INFO L78 Accepts]: Start accepts. Automaton has 16705 states and 52711 transitions. Word has length 134 [2022-01-18 01:22:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:04,862 INFO L470 AbstractCegarLoop]: Abstraction has 16705 states and 52711 transitions. [2022-01-18 01:22:04,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:04,862 INFO L276 IsEmpty]: Start isEmpty. Operand 16705 states and 52711 transitions. [2022-01-18 01:22:04,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:04,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:04,886 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, 1, 1, 1, 1, 1, 1, 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 01:22:04,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 01:22:04,887 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:04,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:04,887 INFO L85 PathProgramCache]: Analyzing trace with hash 478868350, now seen corresponding path program 53 times [2022-01-18 01:22:04,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:04,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533587455] [2022-01-18 01:22:04,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:04,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:05,057 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 01:22:05,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:05,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533587455] [2022-01-18 01:22:05,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533587455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:05,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:05,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:05,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238135022] [2022-01-18 01:22:05,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:05,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:05,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:05,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:05,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:05,059 INFO L87 Difference]: Start difference. First operand 16705 states and 52711 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:05,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:05,530 INFO L93 Difference]: Finished difference Result 22213 states and 70726 transitions. [2022-01-18 01:22:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:22:05,530 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:05,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:05,579 INFO L225 Difference]: With dead ends: 22213 [2022-01-18 01:22:05,579 INFO L226 Difference]: Without dead ends: 20577 [2022-01-18 01:22:05,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:05,580 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 242 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:05,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1285 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:22:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20577 states. [2022-01-18 01:22:05,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20577 to 15765. [2022-01-18 01:22:05,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15765 states, 15764 states have (on average 3.1495813245369195) internal successors, (49650), 15764 states have internal predecessors, (49650), 0 states have call successors, (0), 0 states 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 01:22:05,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15765 states to 15765 states and 49650 transitions. [2022-01-18 01:22:05,848 INFO L78 Accepts]: Start accepts. Automaton has 15765 states and 49650 transitions. Word has length 134 [2022-01-18 01:22:05,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:05,849 INFO L470 AbstractCegarLoop]: Abstraction has 15765 states and 49650 transitions. [2022-01-18 01:22:05,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:05,849 INFO L276 IsEmpty]: Start isEmpty. Operand 15765 states and 49650 transitions. [2022-01-18 01:22:05,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:05,872 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:05,872 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, 1, 1, 1, 1, 1, 1, 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 01:22:05,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 01:22:05,872 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:05,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash -150451716, now seen corresponding path program 54 times [2022-01-18 01:22:05,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:05,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531502102] [2022-01-18 01:22:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:05,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:06,054 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 01:22:06,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:06,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531502102] [2022-01-18 01:22:06,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531502102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:06,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:06,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:06,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959838843] [2022-01-18 01:22:06,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:06,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:06,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:06,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:06,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:06,055 INFO L87 Difference]: Start difference. First operand 15765 states and 49650 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:06,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:06,437 INFO L93 Difference]: Finished difference Result 16661 states and 52281 transitions. [2022-01-18 01:22:06,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:22:06,437 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:06,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:06,468 INFO L225 Difference]: With dead ends: 16661 [2022-01-18 01:22:06,468 INFO L226 Difference]: Without dead ends: 15961 [2022-01-18 01:22:06,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-01-18 01:22:06,469 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 305 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:06,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1154 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:22:06,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15961 states. [2022-01-18 01:22:06,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15961 to 15725. [2022-01-18 01:22:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15725 states, 15724 states have (on average 3.143220554566268) internal successors, (49424), 15724 states have internal predecessors, (49424), 0 states have call successors, (0), 0 states 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 01:22:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15725 states to 15725 states and 49424 transitions. [2022-01-18 01:22:06,710 INFO L78 Accepts]: Start accepts. Automaton has 15725 states and 49424 transitions. Word has length 134 [2022-01-18 01:22:06,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:06,710 INFO L470 AbstractCegarLoop]: Abstraction has 15725 states and 49424 transitions. [2022-01-18 01:22:06,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:06,710 INFO L276 IsEmpty]: Start isEmpty. Operand 15725 states and 49424 transitions. [2022-01-18 01:22:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:06,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:06,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:06,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 01:22:06,734 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:06,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:06,734 INFO L85 PathProgramCache]: Analyzing trace with hash 511737310, now seen corresponding path program 55 times [2022-01-18 01:22:06,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:06,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118955480] [2022-01-18 01:22:06,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:06,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:06,906 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 01:22:06,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:06,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118955480] [2022-01-18 01:22:06,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118955480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:06,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:06,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:06,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496731603] [2022-01-18 01:22:06,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:06,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:06,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:06,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:06,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:06,908 INFO L87 Difference]: Start difference. First operand 15725 states and 49424 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:07,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:07,253 INFO L93 Difference]: Finished difference Result 16241 states and 50851 transitions. [2022-01-18 01:22:07,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:22:07,253 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:07,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:07,284 INFO L225 Difference]: With dead ends: 16241 [2022-01-18 01:22:07,284 INFO L226 Difference]: Without dead ends: 15517 [2022-01-18 01:22:07,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:07,285 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 221 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:07,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 1143 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:07,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15517 states. [2022-01-18 01:22:07,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15517 to 15337. [2022-01-18 01:22:07,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15337 states, 15336 states have (on average 3.1466484089723528) internal successors, (48257), 15336 states have internal predecessors, (48257), 0 states have call successors, (0), 0 states 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 01:22:07,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15337 states to 15337 states and 48257 transitions. [2022-01-18 01:22:07,518 INFO L78 Accepts]: Start accepts. Automaton has 15337 states and 48257 transitions. Word has length 134 [2022-01-18 01:22:07,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:07,518 INFO L470 AbstractCegarLoop]: Abstraction has 15337 states and 48257 transitions. [2022-01-18 01:22:07,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:07,518 INFO L276 IsEmpty]: Start isEmpty. Operand 15337 states and 48257 transitions. [2022-01-18 01:22:07,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:07,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:07,542 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, 1, 1, 1, 1, 1, 1, 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 01:22:07,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 01:22:07,542 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:07,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:07,542 INFO L85 PathProgramCache]: Analyzing trace with hash 2003878990, now seen corresponding path program 56 times [2022-01-18 01:22:07,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:07,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464316243] [2022-01-18 01:22:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:07,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:07,709 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 01:22:07,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:07,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464316243] [2022-01-18 01:22:07,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464316243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:07,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:07,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 01:22:07,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851927325] [2022-01-18 01:22:07,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:07,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 01:22:07,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:07,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 01:22:07,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 01:22:07,712 INFO L87 Difference]: Start difference. First operand 15337 states and 48257 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:07,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:07,953 INFO L93 Difference]: Finished difference Result 12378 states and 37340 transitions. [2022-01-18 01:22:07,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 01:22:07,953 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:07,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:07,974 INFO L225 Difference]: With dead ends: 12378 [2022-01-18 01:22:07,974 INFO L226 Difference]: Without dead ends: 11532 [2022-01-18 01:22:07,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:07,974 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 105 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:07,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 681 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:07,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11532 states. [2022-01-18 01:22:08,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11532 to 10604. [2022-01-18 01:22:08,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10604 states, 10603 states have (on average 3.0270678109968876) internal successors, (32096), 10603 states have internal predecessors, (32096), 0 states have call successors, (0), 0 states 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 01:22:08,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10604 states to 10604 states and 32096 transitions. [2022-01-18 01:22:08,121 INFO L78 Accepts]: Start accepts. Automaton has 10604 states and 32096 transitions. Word has length 134 [2022-01-18 01:22:08,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:08,121 INFO L470 AbstractCegarLoop]: Abstraction has 10604 states and 32096 transitions. [2022-01-18 01:22:08,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:08,121 INFO L276 IsEmpty]: Start isEmpty. Operand 10604 states and 32096 transitions. [2022-01-18 01:22:08,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:08,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:08,136 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, 1, 1, 1, 1, 1, 1, 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 01:22:08,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 01:22:08,136 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:08,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:08,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1885314388, now seen corresponding path program 57 times [2022-01-18 01:22:08,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:08,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763550737] [2022-01-18 01:22:08,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:08,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:08,221 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 01:22:08,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:08,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763550737] [2022-01-18 01:22:08,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763550737] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:08,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:08,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:22:08,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147034292] [2022-01-18 01:22:08,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:08,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:22:08,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:08,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:22:08,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:08,222 INFO L87 Difference]: Start difference. First operand 10604 states and 32096 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:08,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:08,376 INFO L93 Difference]: Finished difference Result 11885 states and 35829 transitions. [2022-01-18 01:22:08,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:22:08,376 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:08,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:08,394 INFO L225 Difference]: With dead ends: 11885 [2022-01-18 01:22:08,394 INFO L226 Difference]: Without dead ends: 10700 [2022-01-18 01:22:08,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:08,394 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 300 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:08,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 514 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:08,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10700 states. [2022-01-18 01:22:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10700 to 10379. [2022-01-18 01:22:08,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 3.021487762574677) internal successors, (31357), 10378 states have internal predecessors, (31357), 0 states have call successors, (0), 0 states 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 01:22:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 31357 transitions. [2022-01-18 01:22:08,534 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 31357 transitions. Word has length 134 [2022-01-18 01:22:08,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:08,535 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 31357 transitions. [2022-01-18 01:22:08,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:08,535 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 31357 transitions. [2022-01-18 01:22:08,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:08,548 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:08,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:08,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 01:22:08,549 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:08,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:08,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1353613490, now seen corresponding path program 58 times [2022-01-18 01:22:08,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:08,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353994747] [2022-01-18 01:22:08,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:08,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:08,751 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 01:22:08,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:08,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353994747] [2022-01-18 01:22:08,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353994747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:08,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:08,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:08,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490738760] [2022-01-18 01:22:08,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:08,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:08,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:08,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:08,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:08,752 INFO L87 Difference]: Start difference. First operand 10379 states and 31357 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:09,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:09,128 INFO L93 Difference]: Finished difference Result 12663 states and 38200 transitions. [2022-01-18 01:22:09,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:22:09,128 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:09,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:09,150 INFO L225 Difference]: With dead ends: 12663 [2022-01-18 01:22:09,150 INFO L226 Difference]: Without dead ends: 12067 [2022-01-18 01:22:09,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:09,150 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 287 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:09,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 1199 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:22:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12067 states. [2022-01-18 01:22:09,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12067 to 10379. [2022-01-18 01:22:09,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 3.0201387550587784) internal successors, (31343), 10378 states have internal predecessors, (31343), 0 states have call successors, (0), 0 states 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 01:22:09,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 31343 transitions. [2022-01-18 01:22:09,306 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 31343 transitions. Word has length 134 [2022-01-18 01:22:09,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:09,306 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 31343 transitions. [2022-01-18 01:22:09,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:09,306 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 31343 transitions. [2022-01-18 01:22:09,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:09,320 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:09,320 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, 1, 1, 1, 1, 1, 1, 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 01:22:09,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 01:22:09,320 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:09,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:09,321 INFO L85 PathProgramCache]: Analyzing trace with hash -647935530, now seen corresponding path program 59 times [2022-01-18 01:22:09,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:09,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427764838] [2022-01-18 01:22:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:09,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:09,503 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 01:22:09,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:09,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427764838] [2022-01-18 01:22:09,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427764838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:09,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:09,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:22:09,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277211488] [2022-01-18 01:22:09,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:09,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:22:09,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:09,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:22:09,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:22:09,505 INFO L87 Difference]: Start difference. First operand 10379 states and 31343 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:09,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:09,754 INFO L93 Difference]: Finished difference Result 11369 states and 34099 transitions. [2022-01-18 01:22:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:22:09,754 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:09,771 INFO L225 Difference]: With dead ends: 11369 [2022-01-18 01:22:09,771 INFO L226 Difference]: Without dead ends: 10319 [2022-01-18 01:22:09,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:09,772 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 214 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:09,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 764 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:09,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10319 states. [2022-01-18 01:22:09,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10319 to 10239. [2022-01-18 01:22:09,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10239 states, 10238 states have (on average 3.017776909552647) internal successors, (30896), 10238 states have internal predecessors, (30896), 0 states have call successors, (0), 0 states 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 01:22:09,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10239 states to 10239 states and 30896 transitions. [2022-01-18 01:22:09,909 INFO L78 Accepts]: Start accepts. Automaton has 10239 states and 30896 transitions. Word has length 134 [2022-01-18 01:22:09,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:09,909 INFO L470 AbstractCegarLoop]: Abstraction has 10239 states and 30896 transitions. [2022-01-18 01:22:09,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:09,909 INFO L276 IsEmpty]: Start isEmpty. Operand 10239 states and 30896 transitions. [2022-01-18 01:22:09,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:09,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:09,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:09,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 01:22:09,923 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:09,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:09,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1516282580, now seen corresponding path program 60 times [2022-01-18 01:22:09,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:09,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634305697] [2022-01-18 01:22:09,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:09,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:10,075 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 01:22:10,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:10,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634305697] [2022-01-18 01:22:10,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634305697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:10,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:10,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:10,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569368799] [2022-01-18 01:22:10,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:10,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:10,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:10,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:10,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:10,077 INFO L87 Difference]: Start difference. First operand 10239 states and 30896 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:10,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:10,590 INFO L93 Difference]: Finished difference Result 15099 states and 45452 transitions. [2022-01-18 01:22:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 01:22:10,590 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:10,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:10,615 INFO L225 Difference]: With dead ends: 15099 [2022-01-18 01:22:10,615 INFO L226 Difference]: Without dead ends: 13602 [2022-01-18 01:22:10,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2022-01-18 01:22:10,615 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 615 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:10,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [615 Valid, 1214 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:22:10,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13602 states. [2022-01-18 01:22:10,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13602 to 10461. [2022-01-18 01:22:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10461 states, 10460 states have (on average 3.0165391969407267) internal successors, (31553), 10460 states have internal predecessors, (31553), 0 states have call successors, (0), 0 states 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 01:22:10,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10461 states to 10461 states and 31553 transitions. [2022-01-18 01:22:10,788 INFO L78 Accepts]: Start accepts. Automaton has 10461 states and 31553 transitions. Word has length 134 [2022-01-18 01:22:10,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:10,788 INFO L470 AbstractCegarLoop]: Abstraction has 10461 states and 31553 transitions. [2022-01-18 01:22:10,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:10,788 INFO L276 IsEmpty]: Start isEmpty. Operand 10461 states and 31553 transitions. [2022-01-18 01:22:10,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:10,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:10,802 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, 1, 1, 1, 1, 1, 1, 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 01:22:10,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 01:22:10,802 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:10,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:10,803 INFO L85 PathProgramCache]: Analyzing trace with hash -463246306, now seen corresponding path program 61 times [2022-01-18 01:22:10,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:10,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353604328] [2022-01-18 01:22:10,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:10,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:10,928 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 01:22:10,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:10,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353604328] [2022-01-18 01:22:10,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353604328] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:10,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:10,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:22:10,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49709062] [2022-01-18 01:22:10,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:10,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:22:10,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:10,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:22:10,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:10,930 INFO L87 Difference]: Start difference. First operand 10461 states and 31553 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:11,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:11,358 INFO L93 Difference]: Finished difference Result 16495 states and 50046 transitions. [2022-01-18 01:22:11,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 01:22:11,358 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:11,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:11,386 INFO L225 Difference]: With dead ends: 16495 [2022-01-18 01:22:11,386 INFO L226 Difference]: Without dead ends: 15458 [2022-01-18 01:22:11,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2022-01-18 01:22:11,386 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 465 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:11,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 1504 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:22:11,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15458 states. [2022-01-18 01:22:11,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15458 to 10374. [2022-01-18 01:22:11,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10374 states, 10373 states have (on average 3.0065554805745687) internal successors, (31187), 10373 states have internal predecessors, (31187), 0 states have call successors, (0), 0 states 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 01:22:11,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10374 states to 10374 states and 31187 transitions. [2022-01-18 01:22:11,555 INFO L78 Accepts]: Start accepts. Automaton has 10374 states and 31187 transitions. Word has length 134 [2022-01-18 01:22:11,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:11,555 INFO L470 AbstractCegarLoop]: Abstraction has 10374 states and 31187 transitions. [2022-01-18 01:22:11,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:11,555 INFO L276 IsEmpty]: Start isEmpty. Operand 10374 states and 31187 transitions. [2022-01-18 01:22:11,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:11,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:11,569 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, 1, 1, 1, 1, 1, 1, 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 01:22:11,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 01:22:11,569 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:11,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:11,570 INFO L85 PathProgramCache]: Analyzing trace with hash -836507084, now seen corresponding path program 62 times [2022-01-18 01:22:11,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:11,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903159488] [2022-01-18 01:22:11,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:11,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:11,732 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 01:22:11,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:11,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903159488] [2022-01-18 01:22:11,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903159488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:11,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:11,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:11,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518564551] [2022-01-18 01:22:11,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:11,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:11,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:11,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:11,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:11,735 INFO L87 Difference]: Start difference. First operand 10374 states and 31187 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:11,961 INFO L93 Difference]: Finished difference Result 11243 states and 33756 transitions. [2022-01-18 01:22:11,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:22:11,961 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:11,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:11,978 INFO L225 Difference]: With dead ends: 11243 [2022-01-18 01:22:11,979 INFO L226 Difference]: Without dead ends: 10358 [2022-01-18 01:22:11,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:11,979 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 203 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:11,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 795 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:11,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10358 states. [2022-01-18 01:22:12,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10358 to 10248. [2022-01-18 01:22:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10248 states, 10247 states have (on average 3.002049380306431) internal successors, (30762), 10247 states have internal predecessors, (30762), 0 states have call successors, (0), 0 states 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 01:22:12,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10248 states to 10248 states and 30762 transitions. [2022-01-18 01:22:12,111 INFO L78 Accepts]: Start accepts. Automaton has 10248 states and 30762 transitions. Word has length 134 [2022-01-18 01:22:12,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:12,111 INFO L470 AbstractCegarLoop]: Abstraction has 10248 states and 30762 transitions. [2022-01-18 01:22:12,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:12,111 INFO L276 IsEmpty]: Start isEmpty. Operand 10248 states and 30762 transitions. [2022-01-18 01:22:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:12,124 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:12,125 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, 1, 1, 1, 1, 1, 1, 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 01:22:12,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 01:22:12,125 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:12,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:12,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1608258638, now seen corresponding path program 63 times [2022-01-18 01:22:12,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:12,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956541424] [2022-01-18 01:22:12,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:12,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:12,271 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 01:22:12,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:12,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956541424] [2022-01-18 01:22:12,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956541424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:12,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:12,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:12,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014875398] [2022-01-18 01:22:12,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:12,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:12,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:12,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:12,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:12,273 INFO L87 Difference]: Start difference. First operand 10248 states and 30762 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:12,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:12,614 INFO L93 Difference]: Finished difference Result 11045 states and 33121 transitions. [2022-01-18 01:22:12,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 01:22:12,614 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:12,630 INFO L225 Difference]: With dead ends: 11045 [2022-01-18 01:22:12,630 INFO L226 Difference]: Without dead ends: 9950 [2022-01-18 01:22:12,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-01-18 01:22:12,631 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 334 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:12,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 1218 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:12,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9950 states. [2022-01-18 01:22:12,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9950 to 9782. [2022-01-18 01:22:12,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9782 states, 9781 states have (on average 2.9986708925467744) internal successors, (29330), 9781 states have internal predecessors, (29330), 0 states have call successors, (0), 0 states 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 01:22:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 29330 transitions. [2022-01-18 01:22:12,756 INFO L78 Accepts]: Start accepts. Automaton has 9782 states and 29330 transitions. Word has length 134 [2022-01-18 01:22:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:12,757 INFO L470 AbstractCegarLoop]: Abstraction has 9782 states and 29330 transitions. [2022-01-18 01:22:12,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 9782 states and 29330 transitions. [2022-01-18 01:22:12,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:12,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:12,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:12,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 01:22:12,774 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:12,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:12,774 INFO L85 PathProgramCache]: Analyzing trace with hash -304682848, now seen corresponding path program 64 times [2022-01-18 01:22:12,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:12,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384795243] [2022-01-18 01:22:12,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:12,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:12,894 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 01:22:12,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:12,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384795243] [2022-01-18 01:22:12,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384795243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:12,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:12,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:12,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812636486] [2022-01-18 01:22:12,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:12,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:12,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:12,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:12,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:12,896 INFO L87 Difference]: Start difference. First operand 9782 states and 29330 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:13,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:13,181 INFO L93 Difference]: Finished difference Result 12044 states and 35936 transitions. [2022-01-18 01:22:13,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:22:13,181 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:13,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:13,200 INFO L225 Difference]: With dead ends: 12044 [2022-01-18 01:22:13,200 INFO L226 Difference]: Without dead ends: 11088 [2022-01-18 01:22:13,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:13,201 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 443 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:13,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 845 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:13,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11088 states. [2022-01-18 01:22:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11088 to 9794. [2022-01-18 01:22:13,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9794 states, 9793 states have (on average 2.997957724905545) internal successors, (29359), 9793 states have internal predecessors, (29359), 0 states have call successors, (0), 0 states 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 01:22:13,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9794 states to 9794 states and 29359 transitions. [2022-01-18 01:22:13,369 INFO L78 Accepts]: Start accepts. Automaton has 9794 states and 29359 transitions. Word has length 134 [2022-01-18 01:22:13,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:13,369 INFO L470 AbstractCegarLoop]: Abstraction has 9794 states and 29359 transitions. [2022-01-18 01:22:13,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:13,369 INFO L276 IsEmpty]: Start isEmpty. Operand 9794 states and 29359 transitions. [2022-01-18 01:22:13,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:13,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:13,383 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, 1, 1, 1, 1, 1, 1, 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 01:22:13,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 01:22:13,384 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:13,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:13,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1461549804, now seen corresponding path program 65 times [2022-01-18 01:22:13,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:13,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924075577] [2022-01-18 01:22:13,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:13,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:13,637 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 01:22:13,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:13,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924075577] [2022-01-18 01:22:13,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924075577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:13,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:13,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:22:13,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484254014] [2022-01-18 01:22:13,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:13,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:22:13,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:13,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:22:13,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:22:13,638 INFO L87 Difference]: Start difference. First operand 9794 states and 29359 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:13,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:13,964 INFO L93 Difference]: Finished difference Result 11403 states and 34065 transitions. [2022-01-18 01:22:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:22:13,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:13,988 INFO L225 Difference]: With dead ends: 11403 [2022-01-18 01:22:13,988 INFO L226 Difference]: Without dead ends: 10483 [2022-01-18 01:22:13,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:13,989 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 201 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:13,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 961 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:14,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10483 states. [2022-01-18 01:22:14,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10483 to 9714. [2022-01-18 01:22:14,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9714 states, 9713 states have (on average 2.997940903943169) internal successors, (29119), 9713 states have internal predecessors, (29119), 0 states have call successors, (0), 0 states 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 01:22:14,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9714 states to 9714 states and 29119 transitions. [2022-01-18 01:22:14,208 INFO L78 Accepts]: Start accepts. Automaton has 9714 states and 29119 transitions. Word has length 134 [2022-01-18 01:22:14,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:14,209 INFO L470 AbstractCegarLoop]: Abstraction has 9714 states and 29119 transitions. [2022-01-18 01:22:14,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:14,209 INFO L276 IsEmpty]: Start isEmpty. Operand 9714 states and 29119 transitions. [2022-01-18 01:22:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:14,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:14,226 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, 1, 1, 1, 1, 1, 1, 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 01:22:14,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 01:22:14,226 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:14,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:14,227 INFO L85 PathProgramCache]: Analyzing trace with hash 430093534, now seen corresponding path program 66 times [2022-01-18 01:22:14,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:14,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150295619] [2022-01-18 01:22:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:14,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:14,375 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 01:22:14,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:14,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150295619] [2022-01-18 01:22:14,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150295619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:14,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:14,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 01:22:14,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768989112] [2022-01-18 01:22:14,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:14,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 01:22:14,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:14,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 01:22:14,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 01:22:14,377 INFO L87 Difference]: Start difference. First operand 9714 states and 29119 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:14,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:14,533 INFO L93 Difference]: Finished difference Result 10906 states and 32588 transitions. [2022-01-18 01:22:14,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 01:22:14,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:14,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:14,551 INFO L225 Difference]: With dead ends: 10906 [2022-01-18 01:22:14,551 INFO L226 Difference]: Without dead ends: 10654 [2022-01-18 01:22:14,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:14,552 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 149 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:14,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 585 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:14,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10654 states. [2022-01-18 01:22:14,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10654 to 10170. [2022-01-18 01:22:14,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10170 states, 10169 states have (on average 2.996951519323434) internal successors, (30476), 10169 states have internal predecessors, (30476), 0 states have call successors, (0), 0 states 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 01:22:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10170 states to 10170 states and 30476 transitions. [2022-01-18 01:22:14,690 INFO L78 Accepts]: Start accepts. Automaton has 10170 states and 30476 transitions. Word has length 134 [2022-01-18 01:22:14,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:14,690 INFO L470 AbstractCegarLoop]: Abstraction has 10170 states and 30476 transitions. [2022-01-18 01:22:14,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:14,690 INFO L276 IsEmpty]: Start isEmpty. Operand 10170 states and 30476 transitions. [2022-01-18 01:22:14,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:14,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:14,703 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, 1, 1, 1, 1, 1, 1, 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 01:22:14,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 01:22:14,703 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:14,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1628114754, now seen corresponding path program 67 times [2022-01-18 01:22:14,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:14,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439782675] [2022-01-18 01:22:14,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:14,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:14,773 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 01:22:14,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:14,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439782675] [2022-01-18 01:22:14,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439782675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:14,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:14,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:22:14,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886605240] [2022-01-18 01:22:14,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:14,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:22:14,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:14,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:22:14,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:14,774 INFO L87 Difference]: Start difference. First operand 10170 states and 30476 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:14,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:14,911 INFO L93 Difference]: Finished difference Result 11098 states and 33250 transitions. [2022-01-18 01:22:14,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:22:14,911 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:14,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:14,928 INFO L225 Difference]: With dead ends: 11098 [2022-01-18 01:22:14,928 INFO L226 Difference]: Without dead ends: 9775 [2022-01-18 01:22:14,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:14,929 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 361 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:14,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 412 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:14,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9775 states. [2022-01-18 01:22:15,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9775 to 9707. [2022-01-18 01:22:15,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9707 states, 9706 states have (on average 2.988975891201319) internal successors, (29011), 9706 states have internal predecessors, (29011), 0 states have call successors, (0), 0 states 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 01:22:15,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9707 states to 9707 states and 29011 transitions. [2022-01-18 01:22:15,050 INFO L78 Accepts]: Start accepts. Automaton has 9707 states and 29011 transitions. Word has length 134 [2022-01-18 01:22:15,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:15,050 INFO L470 AbstractCegarLoop]: Abstraction has 9707 states and 29011 transitions. [2022-01-18 01:22:15,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:15,050 INFO L276 IsEmpty]: Start isEmpty. Operand 9707 states and 29011 transitions. [2022-01-18 01:22:15,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:15,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:15,062 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, 1, 1, 1, 1, 1, 1, 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 01:22:15,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 01:22:15,063 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:15,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:15,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1386132128, now seen corresponding path program 68 times [2022-01-18 01:22:15,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:15,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800282323] [2022-01-18 01:22:15,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:15,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:15,247 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 01:22:15,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:15,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800282323] [2022-01-18 01:22:15,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800282323] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:15,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:15,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:15,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859160273] [2022-01-18 01:22:15,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:15,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:15,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:15,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:15,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:15,248 INFO L87 Difference]: Start difference. First operand 9707 states and 29011 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:15,584 INFO L93 Difference]: Finished difference Result 11835 states and 35425 transitions. [2022-01-18 01:22:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:22:15,584 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:15,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:15,602 INFO L225 Difference]: With dead ends: 11835 [2022-01-18 01:22:15,602 INFO L226 Difference]: Without dead ends: 11017 [2022-01-18 01:22:15,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:22:15,603 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 281 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:15,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 1221 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:15,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11017 states. [2022-01-18 01:22:15,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11017 to 9526. [2022-01-18 01:22:15,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9526 states, 9525 states have (on average 2.979212598425197) internal successors, (28377), 9525 states have internal predecessors, (28377), 0 states have call successors, (0), 0 states 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 01:22:15,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9526 states to 9526 states and 28377 transitions. [2022-01-18 01:22:15,734 INFO L78 Accepts]: Start accepts. Automaton has 9526 states and 28377 transitions. Word has length 134 [2022-01-18 01:22:15,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:15,734 INFO L470 AbstractCegarLoop]: Abstraction has 9526 states and 28377 transitions. [2022-01-18 01:22:15,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:15,734 INFO L276 IsEmpty]: Start isEmpty. Operand 9526 states and 28377 transitions. [2022-01-18 01:22:15,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:15,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:15,747 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, 1, 1, 1, 1, 1, 1, 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 01:22:15,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 01:22:15,747 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:15,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:15,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2137083614, now seen corresponding path program 69 times [2022-01-18 01:22:15,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:15,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263626746] [2022-01-18 01:22:15,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:15,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:15,912 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 01:22:15,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:15,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263626746] [2022-01-18 01:22:15,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263626746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:15,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:15,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:15,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249903847] [2022-01-18 01:22:15,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:15,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:15,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:15,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:15,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:15,914 INFO L87 Difference]: Start difference. First operand 9526 states and 28377 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:16,184 INFO L93 Difference]: Finished difference Result 10129 states and 30114 transitions. [2022-01-18 01:22:16,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:22:16,184 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:16,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:16,200 INFO L225 Difference]: With dead ends: 10129 [2022-01-18 01:22:16,201 INFO L226 Difference]: Without dead ends: 9464 [2022-01-18 01:22:16,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:22:16,201 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 227 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:16,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1013 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:16,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9464 states. [2022-01-18 01:22:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9464 to 8545. [2022-01-18 01:22:16,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8545 states, 8544 states have (on average 2.9737827715355807) internal successors, (25408), 8544 states have internal predecessors, (25408), 0 states have call successors, (0), 0 states 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 01:22:16,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8545 states to 8545 states and 25408 transitions. [2022-01-18 01:22:16,340 INFO L78 Accepts]: Start accepts. Automaton has 8545 states and 25408 transitions. Word has length 134 [2022-01-18 01:22:16,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:16,341 INFO L470 AbstractCegarLoop]: Abstraction has 8545 states and 25408 transitions. [2022-01-18 01:22:16,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:16,341 INFO L276 IsEmpty]: Start isEmpty. Operand 8545 states and 25408 transitions. [2022-01-18 01:22:16,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:16,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:16,353 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, 1, 1, 1, 1, 1, 1, 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 01:22:16,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 01:22:16,353 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:16,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:16,353 INFO L85 PathProgramCache]: Analyzing trace with hash 918766790, now seen corresponding path program 70 times [2022-01-18 01:22:16,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:16,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158522878] [2022-01-18 01:22:16,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:16,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:16,509 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 01:22:16,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:16,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158522878] [2022-01-18 01:22:16,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158522878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:16,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:16,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 01:22:16,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688037217] [2022-01-18 01:22:16,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:16,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 01:22:16,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:16,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 01:22:16,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:22:16,511 INFO L87 Difference]: Start difference. First operand 8545 states and 25408 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:16,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:16,763 INFO L93 Difference]: Finished difference Result 8144 states and 24093 transitions. [2022-01-18 01:22:16,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:22:16,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:16,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:16,776 INFO L225 Difference]: With dead ends: 8144 [2022-01-18 01:22:16,777 INFO L226 Difference]: Without dead ends: 7382 [2022-01-18 01:22:16,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:16,777 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 170 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:16,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 816 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:16,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7382 states. [2022-01-18 01:22:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7382 to 7366. [2022-01-18 01:22:16,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7366 states, 7365 states have (on average 2.9691785471826204) internal successors, (21868), 7365 states have internal predecessors, (21868), 0 states have call successors, (0), 0 states 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 01:22:16,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7366 states to 7366 states and 21868 transitions. [2022-01-18 01:22:16,890 INFO L78 Accepts]: Start accepts. Automaton has 7366 states and 21868 transitions. Word has length 134 [2022-01-18 01:22:16,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:16,890 INFO L470 AbstractCegarLoop]: Abstraction has 7366 states and 21868 transitions. [2022-01-18 01:22:16,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:16,890 INFO L276 IsEmpty]: Start isEmpty. Operand 7366 states and 21868 transitions. [2022-01-18 01:22:16,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:16,900 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:16,900 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, 1, 1, 1, 1, 1, 1, 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 01:22:16,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 01:22:16,900 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:16,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:16,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1513117698, now seen corresponding path program 71 times [2022-01-18 01:22:16,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:16,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360833723] [2022-01-18 01:22:16,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:16,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:17,066 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 01:22:17,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:17,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360833723] [2022-01-18 01:22:17,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360833723] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:17,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:17,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:22:17,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296540207] [2022-01-18 01:22:17,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:17,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:22:17,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:17,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:22:17,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:17,067 INFO L87 Difference]: Start difference. First operand 7366 states and 21868 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:17,369 INFO L93 Difference]: Finished difference Result 8342 states and 24692 transitions. [2022-01-18 01:22:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:22:17,369 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:17,382 INFO L225 Difference]: With dead ends: 8342 [2022-01-18 01:22:17,382 INFO L226 Difference]: Without dead ends: 7338 [2022-01-18 01:22:17,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-01-18 01:22:17,382 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 213 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:17,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 1211 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7338 states. [2022-01-18 01:22:17,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7338 to 7314. [2022-01-18 01:22:17,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7314 states, 7313 states have (on average 2.965814303295501) internal successors, (21689), 7313 states have internal predecessors, (21689), 0 states have call successors, (0), 0 states 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 01:22:17,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7314 states to 7314 states and 21689 transitions. [2022-01-18 01:22:17,494 INFO L78 Accepts]: Start accepts. Automaton has 7314 states and 21689 transitions. Word has length 134 [2022-01-18 01:22:17,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:17,494 INFO L470 AbstractCegarLoop]: Abstraction has 7314 states and 21689 transitions. [2022-01-18 01:22:17,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand 7314 states and 21689 transitions. [2022-01-18 01:22:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:17,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:17,504 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, 1, 1, 1, 1, 1, 1, 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 01:22:17,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 01:22:17,504 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:17,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:17,504 INFO L85 PathProgramCache]: Analyzing trace with hash -781267618, now seen corresponding path program 72 times [2022-01-18 01:22:17,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:17,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316880358] [2022-01-18 01:22:17,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:17,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:17,722 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 01:22:17,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:17,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316880358] [2022-01-18 01:22:17,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316880358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:17,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:17,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:22:17,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807607994] [2022-01-18 01:22:17,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:17,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:22:17,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:17,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:22:17,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:17,724 INFO L87 Difference]: Start difference. First operand 7314 states and 21689 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:18,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:18,033 INFO L93 Difference]: Finished difference Result 8634 states and 25649 transitions. [2022-01-18 01:22:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:22:18,033 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:18,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:18,046 INFO L225 Difference]: With dead ends: 8634 [2022-01-18 01:22:18,046 INFO L226 Difference]: Without dead ends: 8026 [2022-01-18 01:22:18,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-01-18 01:22:18,046 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 320 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:18,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 1096 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:18,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8026 states. [2022-01-18 01:22:18,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8026 to 7330. [2022-01-18 01:22:18,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7330 states, 7329 states have (on average 2.9615227179697095) internal successors, (21705), 7329 states have internal predecessors, (21705), 0 states have call successors, (0), 0 states 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 01:22:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7330 states to 7330 states and 21705 transitions. [2022-01-18 01:22:18,139 INFO L78 Accepts]: Start accepts. Automaton has 7330 states and 21705 transitions. Word has length 134 [2022-01-18 01:22:18,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:18,139 INFO L470 AbstractCegarLoop]: Abstraction has 7330 states and 21705 transitions. [2022-01-18 01:22:18,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:18,139 INFO L276 IsEmpty]: Start isEmpty. Operand 7330 states and 21705 transitions. [2022-01-18 01:22:18,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:18,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:18,148 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, 1, 1, 1, 1, 1, 1, 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 01:22:18,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 01:22:18,148 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:18,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:18,149 INFO L85 PathProgramCache]: Analyzing trace with hash -751073348, now seen corresponding path program 73 times [2022-01-18 01:22:18,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:18,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211343570] [2022-01-18 01:22:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:18,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:18,314 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 01:22:18,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:18,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211343570] [2022-01-18 01:22:18,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211343570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:18,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:18,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:18,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899920111] [2022-01-18 01:22:18,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:18,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:18,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:18,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:18,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:18,316 INFO L87 Difference]: Start difference. First operand 7330 states and 21705 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:18,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:18,613 INFO L93 Difference]: Finished difference Result 7306 states and 21463 transitions. [2022-01-18 01:22:18,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:22:18,613 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:18,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:18,622 INFO L225 Difference]: With dead ends: 7306 [2022-01-18 01:22:18,623 INFO L226 Difference]: Without dead ends: 6562 [2022-01-18 01:22:18,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-01-18 01:22:18,623 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 261 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:18,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1045 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:18,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2022-01-18 01:22:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 6530. [2022-01-18 01:22:18,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6530 states, 6529 states have (on average 2.9349058048705774) internal successors, (19162), 6529 states have internal predecessors, (19162), 0 states have call successors, (0), 0 states 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 01:22:18,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6530 states to 6530 states and 19162 transitions. [2022-01-18 01:22:18,699 INFO L78 Accepts]: Start accepts. Automaton has 6530 states and 19162 transitions. Word has length 134 [2022-01-18 01:22:18,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:18,699 INFO L470 AbstractCegarLoop]: Abstraction has 6530 states and 19162 transitions. [2022-01-18 01:22:18,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:18,699 INFO L276 IsEmpty]: Start isEmpty. Operand 6530 states and 19162 transitions. [2022-01-18 01:22:18,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:18,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:18,707 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, 1, 1, 1, 1, 1, 1, 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 01:22:18,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 01:22:18,707 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:18,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:18,707 INFO L85 PathProgramCache]: Analyzing trace with hash -753454388, now seen corresponding path program 74 times [2022-01-18 01:22:18,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:18,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589918723] [2022-01-18 01:22:18,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:18,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:18,929 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 01:22:18,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:18,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589918723] [2022-01-18 01:22:18,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589918723] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:18,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:18,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:22:18,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392363659] [2022-01-18 01:22:18,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:18,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:22:18,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:18,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:22:18,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:18,930 INFO L87 Difference]: Start difference. First operand 6530 states and 19162 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:19,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:19,244 INFO L93 Difference]: Finished difference Result 7917 states and 23359 transitions. [2022-01-18 01:22:19,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 01:22:19,244 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:19,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:19,255 INFO L225 Difference]: With dead ends: 7917 [2022-01-18 01:22:19,255 INFO L226 Difference]: Without dead ends: 7223 [2022-01-18 01:22:19,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:19,256 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 344 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:19,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1237 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:19,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7223 states. [2022-01-18 01:22:19,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7223 to 6391. [2022-01-18 01:22:19,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6391 states, 6390 states have (on average 2.941001564945227) internal successors, (18793), 6390 states have internal predecessors, (18793), 0 states have call successors, (0), 0 states 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 01:22:19,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6391 states to 6391 states and 18793 transitions. [2022-01-18 01:22:19,333 INFO L78 Accepts]: Start accepts. Automaton has 6391 states and 18793 transitions. Word has length 134 [2022-01-18 01:22:19,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:19,334 INFO L470 AbstractCegarLoop]: Abstraction has 6391 states and 18793 transitions. [2022-01-18 01:22:19,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:19,334 INFO L276 IsEmpty]: Start isEmpty. Operand 6391 states and 18793 transitions. [2022-01-18 01:22:19,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:19,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:19,341 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, 1, 1, 1, 1, 1, 1, 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 01:22:19,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 01:22:19,342 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:19,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:19,342 INFO L85 PathProgramCache]: Analyzing trace with hash 2013465520, now seen corresponding path program 75 times [2022-01-18 01:22:19,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:19,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089933399] [2022-01-18 01:22:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:19,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:19,546 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 01:22:19,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:19,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089933399] [2022-01-18 01:22:19,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089933399] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:19,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:19,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:22:19,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008254971] [2022-01-18 01:22:19,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:19,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:22:19,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:19,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:22:19,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:19,548 INFO L87 Difference]: Start difference. First operand 6391 states and 18793 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:19,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:19,820 INFO L93 Difference]: Finished difference Result 6166 states and 18043 transitions. [2022-01-18 01:22:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:22:19,820 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:19,828 INFO L225 Difference]: With dead ends: 6166 [2022-01-18 01:22:19,828 INFO L226 Difference]: Without dead ends: 5251 [2022-01-18 01:22:19,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:22:19,829 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 167 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:19,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 1441 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:19,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2022-01-18 01:22:19,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 5251. [2022-01-18 01:22:19,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 2.9554285714285715) internal successors, (15516), 5250 states have internal predecessors, (15516), 0 states have call successors, (0), 0 states 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 01:22:19,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 15516 transitions. [2022-01-18 01:22:19,900 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 15516 transitions. Word has length 134 [2022-01-18 01:22:19,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:19,900 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 15516 transitions. [2022-01-18 01:22:19,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:19,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 15516 transitions. [2022-01-18 01:22:19,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:19,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:19,908 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, 1, 1, 1, 1, 1, 1, 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 01:22:19,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 01:22:19,908 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:19,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:19,908 INFO L85 PathProgramCache]: Analyzing trace with hash 820531348, now seen corresponding path program 76 times [2022-01-18 01:22:19,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:19,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639401590] [2022-01-18 01:22:19,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:19,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:20,051 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 01:22:20,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:20,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639401590] [2022-01-18 01:22:20,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639401590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:20,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:20,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:20,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566129102] [2022-01-18 01:22:20,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:20,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:20,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:20,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:20,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:20,053 INFO L87 Difference]: Start difference. First operand 5251 states and 15516 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:20,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:20,331 INFO L93 Difference]: Finished difference Result 5967 states and 17665 transitions. [2022-01-18 01:22:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 01:22:20,332 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:20,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:20,340 INFO L225 Difference]: With dead ends: 5967 [2022-01-18 01:22:20,340 INFO L226 Difference]: Without dead ends: 4975 [2022-01-18 01:22:20,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:20,341 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 422 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:20,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 1119 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:20,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4975 states. [2022-01-18 01:22:20,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4975 to 4931. [2022-01-18 01:22:20,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4931 states, 4930 states have (on average 2.9634888438133875) internal successors, (14610), 4930 states have internal predecessors, (14610), 0 states have call successors, (0), 0 states 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 01:22:20,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4931 states to 4931 states and 14610 transitions. [2022-01-18 01:22:20,417 INFO L78 Accepts]: Start accepts. Automaton has 4931 states and 14610 transitions. Word has length 134 [2022-01-18 01:22:20,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:20,417 INFO L470 AbstractCegarLoop]: Abstraction has 4931 states and 14610 transitions. [2022-01-18 01:22:20,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4931 states and 14610 transitions. [2022-01-18 01:22:20,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:20,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:20,424 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, 1, 1, 1, 1, 1, 1, 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 01:22:20,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 01:22:20,424 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:20,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash 684318656, now seen corresponding path program 77 times [2022-01-18 01:22:20,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:20,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380073274] [2022-01-18 01:22:20,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:20,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:20,540 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 01:22:20,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:20,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380073274] [2022-01-18 01:22:20,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380073274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:20,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:20,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 01:22:20,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173590593] [2022-01-18 01:22:20,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:20,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 01:22:20,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:20,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 01:22:20,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 01:22:20,542 INFO L87 Difference]: Start difference. First operand 4931 states and 14610 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:20,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:20,671 INFO L93 Difference]: Finished difference Result 5159 states and 15257 transitions. [2022-01-18 01:22:20,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 01:22:20,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:20,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:20,680 INFO L225 Difference]: With dead ends: 5159 [2022-01-18 01:22:20,680 INFO L226 Difference]: Without dead ends: 4883 [2022-01-18 01:22:20,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:20,680 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 86 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:20,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 581 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4883 states. [2022-01-18 01:22:20,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4883 to 4883. [2022-01-18 01:22:20,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4883 states, 4882 states have (on average 2.9492011470708728) internal successors, (14398), 4882 states have internal predecessors, (14398), 0 states have call successors, (0), 0 states 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 01:22:20,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4883 states to 4883 states and 14398 transitions. [2022-01-18 01:22:20,745 INFO L78 Accepts]: Start accepts. Automaton has 4883 states and 14398 transitions. Word has length 134 [2022-01-18 01:22:20,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:20,745 INFO L470 AbstractCegarLoop]: Abstraction has 4883 states and 14398 transitions. [2022-01-18 01:22:20,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:20,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4883 states and 14398 transitions. [2022-01-18 01:22:20,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:20,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:20,751 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, 1, 1, 1, 1, 1, 1, 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 01:22:20,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 01:22:20,752 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:20,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:20,752 INFO L85 PathProgramCache]: Analyzing trace with hash -599083418, now seen corresponding path program 78 times [2022-01-18 01:22:20,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:20,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563770445] [2022-01-18 01:22:20,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:20,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:20,888 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 01:22:20,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:20,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563770445] [2022-01-18 01:22:20,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563770445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:20,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:20,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:22:20,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666403923] [2022-01-18 01:22:20,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:20,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:22:20,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:20,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:22:20,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:20,889 INFO L87 Difference]: Start difference. First operand 4883 states and 14398 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:21,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:21,011 INFO L93 Difference]: Finished difference Result 5435 states and 16044 transitions. [2022-01-18 01:22:21,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 01:22:21,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:21,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:21,018 INFO L225 Difference]: With dead ends: 5435 [2022-01-18 01:22:21,018 INFO L226 Difference]: Without dead ends: 4619 [2022-01-18 01:22:21,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:22:21,018 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 96 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:21,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 583 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4619 states. [2022-01-18 01:22:21,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4619 to 4619. [2022-01-18 01:22:21,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4619 states, 4618 states have (on average 2.956258120398441) internal successors, (13652), 4618 states have internal predecessors, (13652), 0 states have call successors, (0), 0 states 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 01:22:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4619 states to 4619 states and 13652 transitions. [2022-01-18 01:22:21,077 INFO L78 Accepts]: Start accepts. Automaton has 4619 states and 13652 transitions. Word has length 134 [2022-01-18 01:22:21,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:21,078 INFO L470 AbstractCegarLoop]: Abstraction has 4619 states and 13652 transitions. [2022-01-18 01:22:21,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:21,078 INFO L276 IsEmpty]: Start isEmpty. Operand 4619 states and 13652 transitions. [2022-01-18 01:22:21,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:21,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:21,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:21,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 01:22:21,083 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:21,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:21,084 INFO L85 PathProgramCache]: Analyzing trace with hash -58097890, now seen corresponding path program 79 times [2022-01-18 01:22:21,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:21,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663077819] [2022-01-18 01:22:21,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:21,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:21,307 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 01:22:21,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:21,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663077819] [2022-01-18 01:22:21,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663077819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:21,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:21,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:22:21,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143792414] [2022-01-18 01:22:21,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:21,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:22:21,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:21,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:22:21,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:21,309 INFO L87 Difference]: Start difference. First operand 4619 states and 13652 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:21,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:21,606 INFO L93 Difference]: Finished difference Result 4943 states and 14591 transitions. [2022-01-18 01:22:21,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:22:21,607 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:21,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:21,614 INFO L225 Difference]: With dead ends: 4943 [2022-01-18 01:22:21,614 INFO L226 Difference]: Without dead ends: 4715 [2022-01-18 01:22:21,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:22:21,614 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 183 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:21,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 1207 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:21,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4715 states. [2022-01-18 01:22:21,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4715 to 4643. [2022-01-18 01:22:21,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4642 states have (on average 2.953468332615252) internal successors, (13710), 4642 states have internal predecessors, (13710), 0 states have call successors, (0), 0 states 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 01:22:21,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 13710 transitions. [2022-01-18 01:22:21,677 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 13710 transitions. Word has length 134 [2022-01-18 01:22:21,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:21,677 INFO L470 AbstractCegarLoop]: Abstraction has 4643 states and 13710 transitions. [2022-01-18 01:22:21,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:21,677 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 13710 transitions. [2022-01-18 01:22:21,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:21,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:21,683 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, 1, 1, 1, 1, 1, 1, 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 01:22:21,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 01:22:21,683 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:21,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:21,683 INFO L85 PathProgramCache]: Analyzing trace with hash -187010670, now seen corresponding path program 80 times [2022-01-18 01:22:21,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:21,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746627002] [2022-01-18 01:22:21,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:21,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:21,839 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 01:22:21,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:21,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746627002] [2022-01-18 01:22:21,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746627002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:21,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:21,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:21,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152335495] [2022-01-18 01:22:21,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:21,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:21,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:21,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:21,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:21,841 INFO L87 Difference]: Start difference. First operand 4643 states and 13710 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:22,186 INFO L93 Difference]: Finished difference Result 6806 states and 20276 transitions. [2022-01-18 01:22:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 01:22:22,186 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:22,197 INFO L225 Difference]: With dead ends: 6806 [2022-01-18 01:22:22,198 INFO L226 Difference]: Without dead ends: 6242 [2022-01-18 01:22:22,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:22,198 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 232 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:22,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 1861 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 01:22:22,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2022-01-18 01:22:22,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 4331. [2022-01-18 01:22:22,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4331 states, 4330 states have (on average 2.953810623556582) internal successors, (12790), 4330 states have internal predecessors, (12790), 0 states have call successors, (0), 0 states 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 01:22:22,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4331 states to 4331 states and 12790 transitions. [2022-01-18 01:22:22,268 INFO L78 Accepts]: Start accepts. Automaton has 4331 states and 12790 transitions. Word has length 134 [2022-01-18 01:22:22,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:22,269 INFO L470 AbstractCegarLoop]: Abstraction has 4331 states and 12790 transitions. [2022-01-18 01:22:22,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:22,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4331 states and 12790 transitions. [2022-01-18 01:22:22,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:22,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:22,274 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, 1, 1, 1, 1, 1, 1, 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 01:22:22,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 01:22:22,274 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:22,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:22,275 INFO L85 PathProgramCache]: Analyzing trace with hash -886322154, now seen corresponding path program 81 times [2022-01-18 01:22:22,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:22,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239883822] [2022-01-18 01:22:22,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:22,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:22,457 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 01:22:22,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:22,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239883822] [2022-01-18 01:22:22,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239883822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:22,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:22,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:22:22,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904078188] [2022-01-18 01:22:22,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:22,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:22:22,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:22,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:22:22,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:22,459 INFO L87 Difference]: Start difference. First operand 4331 states and 12790 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:22,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:22,642 INFO L93 Difference]: Finished difference Result 4583 states and 13507 transitions. [2022-01-18 01:22:22,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:22:22,642 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:22,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:22,648 INFO L225 Difference]: With dead ends: 4583 [2022-01-18 01:22:22,649 INFO L226 Difference]: Without dead ends: 4355 [2022-01-18 01:22:22,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:22,649 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 118 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:22,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 887 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:22,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4355 states. [2022-01-18 01:22:22,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4355 to 4355. [2022-01-18 01:22:22,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4355 states, 4354 states have (on average 2.950849793293523) internal successors, (12848), 4354 states have internal predecessors, (12848), 0 states have call successors, (0), 0 states 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 01:22:22,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4355 states to 4355 states and 12848 transitions. [2022-01-18 01:22:22,706 INFO L78 Accepts]: Start accepts. Automaton has 4355 states and 12848 transitions. Word has length 134 [2022-01-18 01:22:22,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:22,706 INFO L470 AbstractCegarLoop]: Abstraction has 4355 states and 12848 transitions. [2022-01-18 01:22:22,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:22,706 INFO L276 IsEmpty]: Start isEmpty. Operand 4355 states and 12848 transitions. [2022-01-18 01:22:22,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:22,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:22,712 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, 1, 1, 1, 1, 1, 1, 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 01:22:22,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 01:22:22,712 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:22,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:22,712 INFO L85 PathProgramCache]: Analyzing trace with hash -760800234, now seen corresponding path program 82 times [2022-01-18 01:22:22,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:22,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252841591] [2022-01-18 01:22:22,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:22,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:22,889 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 01:22:22,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:22,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252841591] [2022-01-18 01:22:22,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252841591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:22,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:22,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:22,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474186579] [2022-01-18 01:22:22,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:22,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:22,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:22,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:22,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:22,891 INFO L87 Difference]: Start difference. First operand 4355 states and 12848 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:23,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:23,073 INFO L93 Difference]: Finished difference Result 4607 states and 13577 transitions. [2022-01-18 01:22:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:22:23,073 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:23,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:23,079 INFO L225 Difference]: With dead ends: 4607 [2022-01-18 01:22:23,079 INFO L226 Difference]: Without dead ends: 4275 [2022-01-18 01:22:23,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:22:23,079 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 122 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:23,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 980 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:23,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2022-01-18 01:22:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4275. [2022-01-18 01:22:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 4274 states have (on average 2.9546092653252223) internal successors, (12628), 4274 states have internal predecessors, (12628), 0 states have call successors, (0), 0 states 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 01:22:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 12628 transitions. [2022-01-18 01:22:23,126 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 12628 transitions. Word has length 134 [2022-01-18 01:22:23,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:23,126 INFO L470 AbstractCegarLoop]: Abstraction has 4275 states and 12628 transitions. [2022-01-18 01:22:23,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:23,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 12628 transitions. [2022-01-18 01:22:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:23,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:23,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:23,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 01:22:23,131 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:23,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:23,132 INFO L85 PathProgramCache]: Analyzing trace with hash 775472158, now seen corresponding path program 83 times [2022-01-18 01:22:23,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:23,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029344469] [2022-01-18 01:22:23,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:23,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:23,304 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 01:22:23,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:23,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029344469] [2022-01-18 01:22:23,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029344469] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:23,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:23,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:23,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456286599] [2022-01-18 01:22:23,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:23,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:23,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:23,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:23,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:23,305 INFO L87 Difference]: Start difference. First operand 4275 states and 12628 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:23,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:23,461 INFO L93 Difference]: Finished difference Result 4503 states and 13287 transitions. [2022-01-18 01:22:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:22:23,462 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:23,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:23,467 INFO L225 Difference]: With dead ends: 4503 [2022-01-18 01:22:23,468 INFO L226 Difference]: Without dead ends: 4131 [2022-01-18 01:22:23,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:23,468 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 145 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:23,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 731 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2022-01-18 01:22:23,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 3855. [2022-01-18 01:22:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3855 states, 3854 states have (on average 2.9260508562532435) internal successors, (11277), 3854 states have internal predecessors, (11277), 0 states have call successors, (0), 0 states 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 01:22:23,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3855 states to 3855 states and 11277 transitions. [2022-01-18 01:22:23,510 INFO L78 Accepts]: Start accepts. Automaton has 3855 states and 11277 transitions. Word has length 134 [2022-01-18 01:22:23,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:23,510 INFO L470 AbstractCegarLoop]: Abstraction has 3855 states and 11277 transitions. [2022-01-18 01:22:23,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:23,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3855 states and 11277 transitions. [2022-01-18 01:22:23,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:23,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:23,514 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, 1, 1, 1, 1, 1, 1, 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 01:22:23,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 01:22:23,514 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:23,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:23,515 INFO L85 PathProgramCache]: Analyzing trace with hash 900994078, now seen corresponding path program 84 times [2022-01-18 01:22:23,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:23,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324228201] [2022-01-18 01:22:23,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:23,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:23,685 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 01:22:23,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:23,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324228201] [2022-01-18 01:22:23,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324228201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:23,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:23,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:23,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864899743] [2022-01-18 01:22:23,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:23,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:23,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:23,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:23,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:23,686 INFO L87 Difference]: Start difference. First operand 3855 states and 11277 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:23,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:23,859 INFO L93 Difference]: Finished difference Result 4107 states and 12018 transitions. [2022-01-18 01:22:23,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:22:23,860 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:23,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:23,865 INFO L225 Difference]: With dead ends: 4107 [2022-01-18 01:22:23,865 INFO L226 Difference]: Without dead ends: 3807 [2022-01-18 01:22:23,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:23,866 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 121 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:23,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 905 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:23,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2022-01-18 01:22:23,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3807. [2022-01-18 01:22:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3807 states, 3806 states have (on average 2.924067262217551) internal successors, (11129), 3806 states have internal predecessors, (11129), 0 states have call successors, (0), 0 states 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 01:22:23,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 11129 transitions. [2022-01-18 01:22:23,905 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 11129 transitions. Word has length 134 [2022-01-18 01:22:23,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:23,905 INFO L470 AbstractCegarLoop]: Abstraction has 3807 states and 11129 transitions. [2022-01-18 01:22:23,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:23,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 11129 transitions. [2022-01-18 01:22:23,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:23,910 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:23,910 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, 1, 1, 1, 1, 1, 1, 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 01:22:23,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 01:22:23,910 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:23,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:23,910 INFO L85 PathProgramCache]: Analyzing trace with hash -52630960, now seen corresponding path program 85 times [2022-01-18 01:22:23,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:23,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499511416] [2022-01-18 01:22:23,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:23,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:24,089 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 01:22:24,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:24,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499511416] [2022-01-18 01:22:24,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499511416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:24,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:24,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:22:24,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695200823] [2022-01-18 01:22:24,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:24,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:22:24,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:24,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:22:24,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:24,090 INFO L87 Difference]: Start difference. First operand 3807 states and 11129 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:24,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:24,272 INFO L93 Difference]: Finished difference Result 4596 states and 13374 transitions. [2022-01-18 01:22:24,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 01:22:24,272 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:24,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:24,278 INFO L225 Difference]: With dead ends: 4596 [2022-01-18 01:22:24,278 INFO L226 Difference]: Without dead ends: 4176 [2022-01-18 01:22:24,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:22:24,279 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 273 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:24,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 1034 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:24,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4176 states. [2022-01-18 01:22:24,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4176 to 3699. [2022-01-18 01:22:24,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 3698 states have (on average 2.925094645754462) internal successors, (10817), 3698 states have internal predecessors, (10817), 0 states have call successors, (0), 0 states 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 01:22:24,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 10817 transitions. [2022-01-18 01:22:24,322 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 10817 transitions. Word has length 134 [2022-01-18 01:22:24,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:24,322 INFO L470 AbstractCegarLoop]: Abstraction has 3699 states and 10817 transitions. [2022-01-18 01:22:24,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:24,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 10817 transitions. [2022-01-18 01:22:24,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:24,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:24,327 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, 1, 1, 1, 1, 1, 1, 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 01:22:24,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 01:22:24,327 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:24,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:24,328 INFO L85 PathProgramCache]: Analyzing trace with hash 661333576, now seen corresponding path program 86 times [2022-01-18 01:22:24,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:24,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284614991] [2022-01-18 01:22:24,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:24,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:24,461 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 01:22:24,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:24,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284614991] [2022-01-18 01:22:24,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284614991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:24,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:24,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:24,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788530307] [2022-01-18 01:22:24,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:24,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:24,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:24,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:24,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:24,463 INFO L87 Difference]: Start difference. First operand 3699 states and 10817 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:24,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:24,616 INFO L93 Difference]: Finished difference Result 3423 states and 9968 transitions. [2022-01-18 01:22:24,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:22:24,617 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:24,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:24,621 INFO L225 Difference]: With dead ends: 3423 [2022-01-18 01:22:24,621 INFO L226 Difference]: Without dead ends: 2985 [2022-01-18 01:22:24,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:24,623 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 128 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:24,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 600 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:24,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2022-01-18 01:22:24,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2985. [2022-01-18 01:22:24,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2984 states have (on average 2.9490616621983916) internal successors, (8800), 2984 states have internal predecessors, (8800), 0 states have call successors, (0), 0 states 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 01:22:24,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 8800 transitions. [2022-01-18 01:22:24,661 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 8800 transitions. Word has length 134 [2022-01-18 01:22:24,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:24,661 INFO L470 AbstractCegarLoop]: Abstraction has 2985 states and 8800 transitions. [2022-01-18 01:22:24,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:24,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 8800 transitions. [2022-01-18 01:22:24,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:24,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:24,665 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, 1, 1, 1, 1, 1, 1, 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 01:22:24,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 01:22:24,666 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:24,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:24,666 INFO L85 PathProgramCache]: Analyzing trace with hash 262358674, now seen corresponding path program 87 times [2022-01-18 01:22:24,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:24,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470755331] [2022-01-18 01:22:24,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:24,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:24,912 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 01:22:24,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:24,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470755331] [2022-01-18 01:22:24,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470755331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:24,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:24,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 01:22:24,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869694008] [2022-01-18 01:22:24,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:24,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 01:22:24,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:24,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 01:22:24,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:24,914 INFO L87 Difference]: Start difference. First operand 2985 states and 8800 transitions. Second operand has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:25,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:25,143 INFO L93 Difference]: Finished difference Result 3285 states and 9657 transitions. [2022-01-18 01:22:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:22:25,144 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:25,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:25,148 INFO L225 Difference]: With dead ends: 3285 [2022-01-18 01:22:25,148 INFO L226 Difference]: Without dead ends: 2889 [2022-01-18 01:22:25,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:22:25,149 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 130 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:25,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1101 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:25,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2022-01-18 01:22:25,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2817. [2022-01-18 01:22:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2817 states, 2816 states have (on average 2.965553977272727) internal successors, (8351), 2816 states have internal predecessors, (8351), 0 states have call successors, (0), 0 states 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 01:22:25,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2817 states to 2817 states and 8351 transitions. [2022-01-18 01:22:25,182 INFO L78 Accepts]: Start accepts. Automaton has 2817 states and 8351 transitions. Word has length 134 [2022-01-18 01:22:25,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:25,182 INFO L470 AbstractCegarLoop]: Abstraction has 2817 states and 8351 transitions. [2022-01-18 01:22:25,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.307692307692308) internal successors, (134), 13 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:25,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2817 states and 8351 transitions. [2022-01-18 01:22:25,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:25,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:25,186 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, 1, 1, 1, 1, 1, 1, 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 01:22:25,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 01:22:25,187 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:25,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:25,187 INFO L85 PathProgramCache]: Analyzing trace with hash 695589492, now seen corresponding path program 88 times [2022-01-18 01:22:25,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:25,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416808711] [2022-01-18 01:22:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:25,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:25,384 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 01:22:25,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:25,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416808711] [2022-01-18 01:22:25,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416808711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:25,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:25,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 01:22:25,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104732609] [2022-01-18 01:22:25,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:25,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 01:22:25,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:25,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 01:22:25,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:22:25,386 INFO L87 Difference]: Start difference. First operand 2817 states and 8351 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:25,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:25,676 INFO L93 Difference]: Finished difference Result 3669 states and 10898 transitions. [2022-01-18 01:22:25,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:22:25,676 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:25,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:25,681 INFO L225 Difference]: With dead ends: 3669 [2022-01-18 01:22:25,681 INFO L226 Difference]: Without dead ends: 2889 [2022-01-18 01:22:25,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:25,681 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 322 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:25,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 1404 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:25,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2022-01-18 01:22:25,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2865. [2022-01-18 01:22:25,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 2.9591480446927374) internal successors, (8475), 2864 states have internal predecessors, (8475), 0 states have call successors, (0), 0 states 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 01:22:25,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 8475 transitions. [2022-01-18 01:22:25,727 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 8475 transitions. Word has length 134 [2022-01-18 01:22:25,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:25,727 INFO L470 AbstractCegarLoop]: Abstraction has 2865 states and 8475 transitions. [2022-01-18 01:22:25,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:25,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 8475 transitions. [2022-01-18 01:22:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:25,730 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:25,730 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, 1, 1, 1, 1, 1, 1, 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 01:22:25,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 01:22:25,730 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:25,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:25,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1301648780, now seen corresponding path program 89 times [2022-01-18 01:22:25,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:25,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564138021] [2022-01-18 01:22:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:25,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:25,925 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 01:22:25,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:25,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564138021] [2022-01-18 01:22:25,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564138021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:25,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:25,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:25,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706896556] [2022-01-18 01:22:25,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:25,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:25,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:25,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:25,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:25,926 INFO L87 Difference]: Start difference. First operand 2865 states and 8475 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:26,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:26,170 INFO L93 Difference]: Finished difference Result 3849 states and 11453 transitions. [2022-01-18 01:22:26,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 01:22:26,170 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:26,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:26,175 INFO L225 Difference]: With dead ends: 3849 [2022-01-18 01:22:26,175 INFO L226 Difference]: Without dead ends: 3177 [2022-01-18 01:22:26,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-01-18 01:22:26,175 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 175 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:26,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 1059 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:26,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2022-01-18 01:22:26,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2517. [2022-01-18 01:22:26,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2516 states have (on average 2.911764705882353) internal successors, (7326), 2516 states have internal predecessors, (7326), 0 states have call successors, (0), 0 states 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 01:22:26,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 7326 transitions. [2022-01-18 01:22:26,211 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 7326 transitions. Word has length 134 [2022-01-18 01:22:26,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:26,212 INFO L470 AbstractCegarLoop]: Abstraction has 2517 states and 7326 transitions. [2022-01-18 01:22:26,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 7326 transitions. [2022-01-18 01:22:26,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:26,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:26,215 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, 1, 1, 1, 1, 1, 1, 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 01:22:26,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 01:22:26,215 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:26,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:26,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1073240366, now seen corresponding path program 90 times [2022-01-18 01:22:26,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:26,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930398585] [2022-01-18 01:22:26,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:26,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:26,398 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 01:22:26,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:26,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930398585] [2022-01-18 01:22:26,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930398585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:26,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:26,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 01:22:26,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812539297] [2022-01-18 01:22:26,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:26,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 01:22:26,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:26,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 01:22:26,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:22:26,400 INFO L87 Difference]: Start difference. First operand 2517 states and 7326 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:26,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:26,579 INFO L93 Difference]: Finished difference Result 2793 states and 8105 transitions. [2022-01-18 01:22:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:22:26,580 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:26,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:26,583 INFO L225 Difference]: With dead ends: 2793 [2022-01-18 01:22:26,584 INFO L226 Difference]: Without dead ends: 2541 [2022-01-18 01:22:26,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:26,584 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 333 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:26,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 1030 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:26,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2022-01-18 01:22:26,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 2529. [2022-01-18 01:22:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2528 states have (on average 2.914161392405063) internal successors, (7367), 2528 states have internal predecessors, (7367), 0 states have call successors, (0), 0 states 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 01:22:26,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 7367 transitions. [2022-01-18 01:22:26,614 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 7367 transitions. Word has length 134 [2022-01-18 01:22:26,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:26,614 INFO L470 AbstractCegarLoop]: Abstraction has 2529 states and 7367 transitions. [2022-01-18 01:22:26,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:26,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 7367 transitions. [2022-01-18 01:22:26,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:26,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:26,617 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, 1, 1, 1, 1, 1, 1, 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 01:22:26,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 01:22:26,618 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:26,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:26,618 INFO L85 PathProgramCache]: Analyzing trace with hash -604174652, now seen corresponding path program 91 times [2022-01-18 01:22:26,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:26,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217701272] [2022-01-18 01:22:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:26,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:26,731 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 01:22:26,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:26,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217701272] [2022-01-18 01:22:26,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217701272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:26,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:26,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 01:22:26,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246299079] [2022-01-18 01:22:26,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:26,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 01:22:26,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:26,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 01:22:26,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:26,732 INFO L87 Difference]: Start difference. First operand 2529 states and 7367 transitions. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:26,845 INFO L93 Difference]: Finished difference Result 2801 states and 8103 transitions. [2022-01-18 01:22:26,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:22:26,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:26,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:26,849 INFO L225 Difference]: With dead ends: 2801 [2022-01-18 01:22:26,849 INFO L226 Difference]: Without dead ends: 2405 [2022-01-18 01:22:26,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:26,850 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 249 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:26,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 628 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:26,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-01-18 01:22:26,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2405. [2022-01-18 01:22:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 2404 states have (on average 2.915973377703827) internal successors, (7010), 2404 states have internal predecessors, (7010), 0 states have call successors, (0), 0 states 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 01:22:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 7010 transitions. [2022-01-18 01:22:26,878 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 7010 transitions. Word has length 134 [2022-01-18 01:22:26,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:26,878 INFO L470 AbstractCegarLoop]: Abstraction has 2405 states and 7010 transitions. [2022-01-18 01:22:26,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:26,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 7010 transitions. [2022-01-18 01:22:26,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:26,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:26,881 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, 1, 1, 1, 1, 1, 1, 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 01:22:26,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 01:22:26,881 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:26,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:26,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1687039256, now seen corresponding path program 92 times [2022-01-18 01:22:26,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:26,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815351614] [2022-01-18 01:22:26,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:26,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:27,018 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 01:22:27,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:27,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815351614] [2022-01-18 01:22:27,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815351614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:27,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:27,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:22:27,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699036614] [2022-01-18 01:22:27,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:27,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:22:27,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:27,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:22:27,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:27,020 INFO L87 Difference]: Start difference. First operand 2405 states and 7010 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:27,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:27,170 INFO L93 Difference]: Finished difference Result 3743 states and 11052 transitions. [2022-01-18 01:22:27,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:22:27,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:27,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:27,176 INFO L225 Difference]: With dead ends: 3743 [2022-01-18 01:22:27,176 INFO L226 Difference]: Without dead ends: 3503 [2022-01-18 01:22:27,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-01-18 01:22:27,176 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 82 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:27,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 610 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:27,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3503 states. [2022-01-18 01:22:27,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3503 to 2441. [2022-01-18 01:22:27,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2440 states have (on average 2.9184426229508196) internal successors, (7121), 2440 states have internal predecessors, (7121), 0 states have call successors, (0), 0 states 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 01:22:27,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 7121 transitions. [2022-01-18 01:22:27,211 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 7121 transitions. Word has length 134 [2022-01-18 01:22:27,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:27,211 INFO L470 AbstractCegarLoop]: Abstraction has 2441 states and 7121 transitions. [2022-01-18 01:22:27,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:27,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 7121 transitions. [2022-01-18 01:22:27,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:27,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:27,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:27,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 01:22:27,214 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:27,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:27,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1537266998, now seen corresponding path program 93 times [2022-01-18 01:22:27,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:27,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246899886] [2022-01-18 01:22:27,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:27,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:27,306 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 01:22:27,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:27,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246899886] [2022-01-18 01:22:27,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246899886] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:27,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:27,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 01:22:27,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555169108] [2022-01-18 01:22:27,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:27,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 01:22:27,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:27,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 01:22:27,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 01:22:27,307 INFO L87 Difference]: Start difference. First operand 2441 states and 7121 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:27,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:27,421 INFO L93 Difference]: Finished difference Result 4160 states and 12278 transitions. [2022-01-18 01:22:27,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:22:27,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:27,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:27,427 INFO L225 Difference]: With dead ends: 4160 [2022-01-18 01:22:27,427 INFO L226 Difference]: Without dead ends: 3956 [2022-01-18 01:22:27,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:27,428 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 206 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:27,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 453 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2022-01-18 01:22:27,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 2465. [2022-01-18 01:22:27,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 2464 states have (on average 2.918425324675325) internal successors, (7191), 2464 states have internal predecessors, (7191), 0 states have call successors, (0), 0 states 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 01:22:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 7191 transitions. [2022-01-18 01:22:27,467 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 7191 transitions. Word has length 134 [2022-01-18 01:22:27,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:27,468 INFO L470 AbstractCegarLoop]: Abstraction has 2465 states and 7191 transitions. [2022-01-18 01:22:27,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 7191 transitions. [2022-01-18 01:22:27,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:27,470 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:27,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:22:27,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 01:22:27,471 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:27,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:27,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1827044804, now seen corresponding path program 94 times [2022-01-18 01:22:27,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:27,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170904685] [2022-01-18 01:22:27,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:27,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:27,613 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 01:22:27,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:27,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170904685] [2022-01-18 01:22:27,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170904685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:27,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:27,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:22:27,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956125352] [2022-01-18 01:22:27,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:27,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:22:27,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:27,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:22:27,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:27,614 INFO L87 Difference]: Start difference. First operand 2465 states and 7191 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:27,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:27,761 INFO L93 Difference]: Finished difference Result 3299 states and 9667 transitions. [2022-01-18 01:22:27,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:22:27,761 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:27,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:27,765 INFO L225 Difference]: With dead ends: 3299 [2022-01-18 01:22:27,765 INFO L226 Difference]: Without dead ends: 2639 [2022-01-18 01:22:27,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:27,766 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 161 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:27,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 745 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:27,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2022-01-18 01:22:27,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 1973. [2022-01-18 01:22:27,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1972 states have (on average 2.911764705882353) internal successors, (5742), 1972 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states 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 01:22:27,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 5742 transitions. [2022-01-18 01:22:27,791 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 5742 transitions. Word has length 134 [2022-01-18 01:22:27,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:27,791 INFO L470 AbstractCegarLoop]: Abstraction has 1973 states and 5742 transitions. [2022-01-18 01:22:27,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:27,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 5742 transitions. [2022-01-18 01:22:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:27,794 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:27,794 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, 1, 1, 1, 1, 1, 1, 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 01:22:27,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 01:22:27,794 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:27,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:27,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1098654282, now seen corresponding path program 95 times [2022-01-18 01:22:27,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:27,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273679257] [2022-01-18 01:22:27,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:27,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:27,927 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 01:22:27,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:27,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273679257] [2022-01-18 01:22:27,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273679257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:27,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:27,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:22:27,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253467452] [2022-01-18 01:22:27,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:27,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:22:27,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:27,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:22:27,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:27,928 INFO L87 Difference]: Start difference. First operand 1973 states and 5742 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:28,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:28,079 INFO L93 Difference]: Finished difference Result 2189 states and 6336 transitions. [2022-01-18 01:22:28,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:22:28,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:28,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:28,082 INFO L225 Difference]: With dead ends: 2189 [2022-01-18 01:22:28,082 INFO L226 Difference]: Without dead ends: 1877 [2022-01-18 01:22:28,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:28,083 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 177 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:28,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 633 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:28,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2022-01-18 01:22:28,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877. [2022-01-18 01:22:28,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1876 states have (on average 2.894456289978678) internal successors, (5430), 1876 states have internal predecessors, (5430), 0 states have call successors, (0), 0 states 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 01:22:28,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 5430 transitions. [2022-01-18 01:22:28,103 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 5430 transitions. Word has length 134 [2022-01-18 01:22:28,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:28,104 INFO L470 AbstractCegarLoop]: Abstraction has 1877 states and 5430 transitions. [2022-01-18 01:22:28,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:28,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 5430 transitions. [2022-01-18 01:22:28,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:28,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:28,106 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, 1, 1, 1, 1, 1, 1, 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 01:22:28,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 01:22:28,106 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:28,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:28,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1296546248, now seen corresponding path program 96 times [2022-01-18 01:22:28,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:28,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474275657] [2022-01-18 01:22:28,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:28,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:28,333 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 01:22:28,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:28,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474275657] [2022-01-18 01:22:28,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474275657] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:28,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:28,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:28,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198647072] [2022-01-18 01:22:28,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:28,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:28,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:28,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:28,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:28,334 INFO L87 Difference]: Start difference. First operand 1877 states and 5430 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:28,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:28,528 INFO L93 Difference]: Finished difference Result 2561 states and 7491 transitions. [2022-01-18 01:22:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:22:28,529 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:28,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:28,533 INFO L225 Difference]: With dead ends: 2561 [2022-01-18 01:22:28,533 INFO L226 Difference]: Without dead ends: 2357 [2022-01-18 01:22:28,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:22:28,533 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 155 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:28,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 819 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:28,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2022-01-18 01:22:28,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1961. [2022-01-18 01:22:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1960 states have (on average 2.8862244897959184) internal successors, (5657), 1960 states have internal predecessors, (5657), 0 states have call successors, (0), 0 states 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 01:22:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 5657 transitions. [2022-01-18 01:22:28,562 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 5657 transitions. Word has length 134 [2022-01-18 01:22:28,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:28,562 INFO L470 AbstractCegarLoop]: Abstraction has 1961 states and 5657 transitions. [2022-01-18 01:22:28,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:28,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 5657 transitions. [2022-01-18 01:22:28,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:28,564 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:28,564 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, 1, 1, 1, 1, 1, 1, 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 01:22:28,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 01:22:28,564 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:28,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:28,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1001182776, now seen corresponding path program 97 times [2022-01-18 01:22:28,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:28,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27147140] [2022-01-18 01:22:28,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:28,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:28,761 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 01:22:28,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:28,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27147140] [2022-01-18 01:22:28,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27147140] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:28,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:28,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:28,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481176861] [2022-01-18 01:22:28,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:28,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:28,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:28,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:28,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:28,762 INFO L87 Difference]: Start difference. First operand 1961 states and 5657 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:28,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:28,960 INFO L93 Difference]: Finished difference Result 2093 states and 6012 transitions. [2022-01-18 01:22:28,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 01:22:28,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:28,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:28,964 INFO L225 Difference]: With dead ends: 2093 [2022-01-18 01:22:28,964 INFO L226 Difference]: Without dead ends: 1937 [2022-01-18 01:22:28,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:22:28,964 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 102 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:28,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1208 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 01:22:28,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2022-01-18 01:22:28,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1937. [2022-01-18 01:22:28,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1936 states have (on average 2.883780991735537) internal successors, (5583), 1936 states have internal predecessors, (5583), 0 states have call successors, (0), 0 states 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 01:22:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 5583 transitions. [2022-01-18 01:22:28,985 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 5583 transitions. Word has length 134 [2022-01-18 01:22:28,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:28,985 INFO L470 AbstractCegarLoop]: Abstraction has 1937 states and 5583 transitions. [2022-01-18 01:22:28,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:28,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 5583 transitions. [2022-01-18 01:22:28,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:28,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:28,987 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, 1, 1, 1, 1, 1, 1, 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 01:22:28,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 01:22:28,987 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:28,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:28,988 INFO L85 PathProgramCache]: Analyzing trace with hash 546157752, now seen corresponding path program 98 times [2022-01-18 01:22:28,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:28,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010828607] [2022-01-18 01:22:28,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:28,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:29,170 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 01:22:29,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:29,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010828607] [2022-01-18 01:22:29,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010828607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:29,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:29,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 01:22:29,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840847360] [2022-01-18 01:22:29,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:29,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 01:22:29,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:29,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 01:22:29,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:22:29,172 INFO L87 Difference]: Start difference. First operand 1937 states and 5583 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:29,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:29,316 INFO L93 Difference]: Finished difference Result 2141 states and 6116 transitions. [2022-01-18 01:22:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 01:22:29,316 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:29,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:29,319 INFO L225 Difference]: With dead ends: 2141 [2022-01-18 01:22:29,319 INFO L226 Difference]: Without dead ends: 1961 [2022-01-18 01:22:29,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-01-18 01:22:29,320 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 332 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:29,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 783 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:29,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2022-01-18 01:22:29,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1961. [2022-01-18 01:22:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1960 states have (on average 2.8698979591836733) internal successors, (5625), 1960 states have internal predecessors, (5625), 0 states have call successors, (0), 0 states 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 01:22:29,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 5625 transitions. [2022-01-18 01:22:29,341 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 5625 transitions. Word has length 134 [2022-01-18 01:22:29,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:29,341 INFO L470 AbstractCegarLoop]: Abstraction has 1961 states and 5625 transitions. [2022-01-18 01:22:29,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:29,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 5625 transitions. [2022-01-18 01:22:29,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:29,343 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:29,343 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, 1, 1, 1, 1, 1, 1, 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 01:22:29,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 01:22:29,343 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:29,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:29,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1716825300, now seen corresponding path program 99 times [2022-01-18 01:22:29,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:29,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850062523] [2022-01-18 01:22:29,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:29,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:29,539 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 01:22:29,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:29,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850062523] [2022-01-18 01:22:29,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850062523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:29,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:29,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 01:22:29,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402977153] [2022-01-18 01:22:29,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:29,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 01:22:29,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:29,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 01:22:29,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-01-18 01:22:29,541 INFO L87 Difference]: Start difference. First operand 1961 states and 5625 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:29,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:29,779 INFO L93 Difference]: Finished difference Result 2357 states and 6786 transitions. [2022-01-18 01:22:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 01:22:29,780 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:29,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:29,782 INFO L225 Difference]: With dead ends: 2357 [2022-01-18 01:22:29,782 INFO L226 Difference]: Without dead ends: 2057 [2022-01-18 01:22:29,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-01-18 01:22:29,783 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 199 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:29,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 975 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2022-01-18 01:22:29,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 1757. [2022-01-18 01:22:29,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1756 states have (on average 2.85876993166287) internal successors, (5020), 1756 states have internal predecessors, (5020), 0 states have call successors, (0), 0 states 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 01:22:29,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 5020 transitions. [2022-01-18 01:22:29,804 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 5020 transitions. Word has length 134 [2022-01-18 01:22:29,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:29,805 INFO L470 AbstractCegarLoop]: Abstraction has 1757 states and 5020 transitions. [2022-01-18 01:22:29,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:29,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 5020 transitions. [2022-01-18 01:22:29,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:29,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:29,807 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, 1, 1, 1, 1, 1, 1, 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 01:22:29,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 01:22:29,807 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:29,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:29,807 INFO L85 PathProgramCache]: Analyzing trace with hash -22731434, now seen corresponding path program 100 times [2022-01-18 01:22:29,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:29,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163889739] [2022-01-18 01:22:29,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:29,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:30,085 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 01:22:30,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:30,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163889739] [2022-01-18 01:22:30,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163889739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:30,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:30,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 01:22:30,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22816812] [2022-01-18 01:22:30,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:30,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 01:22:30,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:30,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 01:22:30,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-01-18 01:22:30,086 INFO L87 Difference]: Start difference. First operand 1757 states and 5020 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:30,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:30,228 INFO L93 Difference]: Finished difference Result 1661 states and 4692 transitions. [2022-01-18 01:22:30,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 01:22:30,228 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:30,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:30,230 INFO L225 Difference]: With dead ends: 1661 [2022-01-18 01:22:30,230 INFO L226 Difference]: Without dead ends: 1449 [2022-01-18 01:22:30,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-01-18 01:22:30,231 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 97 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:30,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 880 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:30,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2022-01-18 01:22:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1425. [2022-01-18 01:22:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1424 states have (on average 2.8588483146067416) internal successors, (4071), 1424 states have internal predecessors, (4071), 0 states have call successors, (0), 0 states 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 01:22:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 4071 transitions. [2022-01-18 01:22:30,246 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 4071 transitions. Word has length 134 [2022-01-18 01:22:30,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:30,246 INFO L470 AbstractCegarLoop]: Abstraction has 1425 states and 4071 transitions. [2022-01-18 01:22:30,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:30,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 4071 transitions. [2022-01-18 01:22:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-18 01:22:30,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 01:22:30,248 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, 1, 1, 1, 1, 1, 1, 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 01:22:30,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 01:22:30,248 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 01:22:30,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 01:22:30,249 INFO L85 PathProgramCache]: Analyzing trace with hash 640786386, now seen corresponding path program 101 times [2022-01-18 01:22:30,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 01:22:30,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724900419] [2022-01-18 01:22:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 01:22:30,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 01:22:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 01:22:30,372 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 01:22:30,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 01:22:30,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724900419] [2022-01-18 01:22:30,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724900419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 01:22:30,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 01:22:30,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 01:22:30,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561357543] [2022-01-18 01:22:30,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 01:22:30,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 01:22:30,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 01:22:30,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 01:22:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-18 01:22:30,374 INFO L87 Difference]: Start difference. First operand 1425 states and 4071 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:30,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 01:22:30,477 INFO L93 Difference]: Finished difference Result 882 states and 2440 transitions. [2022-01-18 01:22:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 01:22:30,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-01-18 01:22:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 01:22:30,477 INFO L225 Difference]: With dead ends: 882 [2022-01-18 01:22:30,477 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 01:22:30,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-18 01:22:30,478 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 130 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 01:22:30,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 464 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 01:22:30,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 01:22:30,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 01:22:30,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 01:22:30,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 01:22:30,479 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2022-01-18 01:22:30,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 01:22:30,479 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 01:22:30,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 01:22:30,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 01:22:30,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 01:22:30,481 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 01:22:30,481 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 01:22:30,481 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 01:22:30,482 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 01:22:30,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 01:22:30,485 INFO L732 BasicCegarLoop]: Path program histogram: [101] [2022-01-18 01:22:30,488 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 01:22:30,488 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 01:22:30,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 01:22:30 BasicIcfg [2022-01-18 01:22:30,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 01:22:30,490 INFO L158 Benchmark]: Toolchain (without parser) took 96568.00ms. Allocated memory was 392.2MB in the beginning and 14.8GB in the end (delta: 14.4GB). Free memory was 333.5MB in the beginning and 3.7GB in the end (delta: -3.4GB). Peak memory consumption was 11.0GB. Max. memory is 16.0GB. [2022-01-18 01:22:30,492 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 392.2MB. Free memory is still 350.0MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 01:22:30,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.12ms. Allocated memory was 392.2MB in the beginning and 555.7MB in the end (delta: 163.6MB). Free memory was 333.3MB in the beginning and 524.1MB in the end (delta: -190.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.0GB. [2022-01-18 01:22:30,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.65ms. Allocated memory is still 555.7MB. Free memory was 524.1MB in the beginning and 521.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:22:30,492 INFO L158 Benchmark]: Boogie Preprocessor took 30.89ms. Allocated memory is still 555.7MB. Free memory was 521.7MB in the beginning and 519.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 01:22:30,492 INFO L158 Benchmark]: RCFGBuilder took 585.36ms. Allocated memory is still 555.7MB. Free memory was 519.9MB in the beginning and 487.7MB in the end (delta: 32.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2022-01-18 01:22:30,492 INFO L158 Benchmark]: TraceAbstraction took 95533.31ms. Allocated memory was 555.7MB in the beginning and 14.8GB in the end (delta: 14.2GB). Free memory was 487.7MB in the beginning and 3.7GB in the end (delta: -3.2GB). Peak memory consumption was 11.0GB. Max. memory is 16.0GB. [2022-01-18 01:22:30,492 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 392.2MB. Free memory is still 350.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 348.12ms. Allocated memory was 392.2MB in the beginning and 555.7MB in the end (delta: 163.6MB). Free memory was 333.3MB in the beginning and 524.1MB in the end (delta: -190.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.65ms. Allocated memory is still 555.7MB. Free memory was 524.1MB in the beginning and 521.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.89ms. Allocated memory is still 555.7MB. Free memory was 521.7MB in the beginning and 519.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 585.36ms. Allocated memory is still 555.7MB. Free memory was 519.9MB in the beginning and 487.7MB in the end (delta: 32.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 95533.31ms. Allocated memory was 555.7MB in the beginning and 14.8GB in the end (delta: 14.2GB). Free memory was 487.7MB in the beginning and 3.7GB in the end (delta: -3.2GB). Peak memory consumption was 11.0GB. 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 - PositiveResult [Line: 196]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 199 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 95.4s, OverallIterations: 101, TraceHistogramMax: 1, PathProgramHistogramMax: 101, EmptinessCheckTime: 2.6s, AutomataDifference: 42.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26979 SdHoareTripleChecker+Valid, 22.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26979 mSDsluCounter, 102943 SdHoareTripleChecker+Invalid, 18.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 102306 mSDsCounter, 3437 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51660 IncrementalHoareTripleChecker+Invalid, 55097 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3437 mSolverCounterUnsat, 17104 mSDtfsCounter, 51660 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1761 GetRequests, 451 SyntacticMatches, 42 SemanticMatches, 1268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3101 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25962occurred in iteration=37, InterpolantAutomatonStates: 1236, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 30.9s AutomataMinimizationTime, 101 MinimizatonAttempts, 263570 StatesRemovedByMinimization, 82 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 15.8s InterpolantComputationTime, 13534 NumberOfCodeBlocks, 13534 NumberOfCodeBlocksAsserted, 101 NumberOfCheckSat, 13433 ConstructedInterpolants, 0 QuantifiedInterpolants, 59108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 101 InterpolantComputations, 101 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 01:22:30,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...